Power Train Problems of Volkswagen Tiguan - part 1

The vehicle’s automatic emergency-braking and parking-assistance systems intermittently activate when no collision is imminent. The vehicle unexpectedly stops, shifts itself into park, and engages the electronic parking brake while moving at low speed. This has occurred while pulling into parking spaces with vehicles on both sides and while beginning an unprotected left turn when oncoming traffic was still at a safe distance. The sudden stop creates a risk of being struck by another vehicle. The vehicle was presented to an authorized Volkswagen dealership for inspection, but the dealership was unable to reproduce the condition and stated that it did not believe there was an issue. The vehicle remains available for inspection.

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I am filing a safety complaint regarding my 2023 Volkswagen Tiguan se r-line with approximately 54,000 miles. The vehicle experienced a significant engine-related failure involving the oil separator/pcv system. Volkswagen diagnosed a failed oil separator/breather that caused excessive crankcase pressure, resulting in substantial oil expulsion and damage/leaks involving the plastic/composite oil pan and timing-chain cover. Volkswagen also identified oil contamination around engine sensors and a p0341 camshaft-position fault. The vehicle has previously experienced epc/check-engine warnings and entered limp mode, creating concern about potential loss of power while driving. The dealer’s repair required replacement of the oil separator/pcv system, oil pan, timing-chain cover and associated gaskets, along with cleaning oil from the engine compartment and sensors. The repair estimate was approximately $2,490, later reduced to approximately $2,300. Volkswagen declined my request for goodwill assistance. I am concerned that a failure of the oil separator/pcv system can create excessive crankcase pressure and cause oil to be expelled from the engine, damage other engine components, contaminate sensors, trigger fault codes, and potentially result in reduced engine power or limp mode. Sudden oil loss or loss of engine power can create a serious safety hazard, particularly at highway speeds or in traffic. This vehicle has also experienced recurring alignment problems, requiring three alignments in approximately six months, raising additional concerns about the vehicle’s overall reliability and safety. I request that NHTSA investigate whether oil-separator/pcv failures and their resulting oil loss, component damage, sensor faults, and potential loss of power represent a broader safety defect in 2023 Volkswagen Tiguan vehicles.

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The contact owns a 2025 Volkswagen Tiguan. The contact stated that while driving approximately 20-25 mph, the transmission unexpectedly shifted into park(p) and the engine shut off. Additionally, the vehicle experienced phantom braking while reversing. The vehicle was restarted and taken to the dealer, but the failure could not be duplicated. The failure reoccurred, nearly causing another vehicle to rear-end the vehicle. The vehicle was towed back to the dealer; however, the failure was not duplicated. The manufacturer was made aware of the failure, and the contact requested buyback. The failure mileage was approximately 9,910.

Catastrophic loss of throttle response and severe acceleration lag from a standstill under high ambient temperatures, presenting an immediate collision hazard. On more than ten (10) separate occasions, the acceleration on this vehicle from a complete standstill has unexpectedly dropped to a dangerous level, performing at or below the speed and power of an un-indicated "limp mode. "this hazardous condition is explicitly triggered by ambient heat: it frequently occurs in temperatures above 90°f and consistently occurs when temperatures exceed 95°f. The defect manifests unannounced from a stop while sitting in traffic, idling at a light, or attempting to pull out or merge onto a roadway. Once the vehicle is in motion, the engine runs fine and all auxiliary systems—including the air conditioning, infotainment, and advanced driving assistance systems—operate normally. Crucially, the vehicle displays absolutely no dashboard warning lights, check engine lights, or stored diagnostic trouble codes (dtcs), making the malfunction impossible for standard onboard diagnostics to register. Over time, I have learned to detect a subtle, tell-tale change in the cadence of the engine idle that foreshadows when this dangerous throttle failure is about to occur. Based on the symptoms, the failure appears to reside within the electronic accelerator pedal assembly, throttle body, engine control module (ecm/ecu), transmission control system, or a thermal management software conflict between these components. I have presented this vehicle to an authorized dealership, lokey Volkswagen, on two (2) separate occasions for this exact issue. On both visits, the service department failed to provide any remedy, diagnostic resolution, or repair suggestions to the lack of stored fault codes. Because this severe lag occurs when trying to accelerate into live traffic, it leaves the vehicle dangerously exposed and creeping along at walking speeds. I firmly believe this defect will result in a severe injury.

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2022 vw Tiguan se had pcv (positive crankshaft ventilation) also known as air-oil separator failed just outside of warranty creating a pressure cooker like effect in the engine which caused several seals and hoses, (such as the upper/front timing cover gaskets, rear main seal, and valve stem seals) to fail. The oil pan gasket was also destroyed. Although I was fortunate enough to be able to drive from my house around the corner to my local mechanic, this could have become a dangerous scenario considering most of my driving is done on busy freeways -- this could have caused severe oil slicking, sudden loss of power, and/or total engine failure. All of which could have resulted in a fatal, multi-vehicle accident. This appears to be a relatively common incident involving this particular year and model according to a new jersey federal case ([xxx] et al v. Volkswagen [xxx] et al. ), and several other complaints found. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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The contact owns a 2019 Volkswagen Tiguan. The contact stated that while driving at an undisclosed speed, the vehicle drove over a pothole or an object on the roadway and the vehicle stalled. The failure had reoccurred on several occasions. No warning lights were illuminated. The vehicle was taken to a dealer to be diagnosed; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

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When driving, the vehicle self shifted into neutral and was unresponsive. All of the dash warning lights came on and I was not able to apply throttle or shift the car into drive. I had to coast in neutral to the side of the road. This is a safety issue and there was a high possibly of crashing if it wasn’t on a rural road. This is the second time this has happened. The first time vw service said nothing had occurred and gave me my vehicle back.

The contact owns a 2021 Volkswagen Tiguan. The contact stated that while driving downhill at an undisclosed speed, the vehicle lost automotive power. The vehicle was coasted into a driveway and restarted. Upon restarting the vehicle, the electronic power control (epc) warning light and the yellow triangle for the central warning light illuminated. The vehicle was idling roughly and jerking while driving to the dealer. The vehicle was previously serviced at 50,500 miles due to an epc fault, and dealer replaced an electronic actuator. Additionally, the battery was replaced at 50,500 miles, and the vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 51,960.

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Since purchasing this new 2025 Volkswagen Tiguan, I have experienced repeated electrical and drivability defects despite multiple repair attempts by an authorized Volkswagen dealership. The vehicle has been out of service approximately 70+ days, including a transmission replacement, a loose ball joint and suspension repairs. Defects include repeated check engine lights, remote start failures, false "door ajar" warnings, intermittent warning messages, vibration while driving, and hard shifting. The vehicle also shut off while I was reversing and had to be shifted into park before it would restart. Before taking the vehicle back, I asked the dealership whether it was safe to drive and did not receive a response. After the vehicle was retrieved from the dealership for the 4th time, several defects recurred within approximately 44 minutes, and the check engine light returned the following night. I believe these recurring defects present a safety risk to me, my passengers, and other motorists.

I am leasing a 2026 Volkswagen Tiguan r-line awd, I took posession of on may 9, 2026. It has approx 2500 miles on it. The vehicle unexpectedly shifted itself into park while I was actively driving the vehicle, including while approaching/intersecting at intersections. This occurred while I had my seatbelt on and the vehicle was in motion and was not an intentional action by me. When the problem occurred, the vehicle displayed a yellow warning triangle/caution warning. I have video and photographic documentation of the issue. Some files are larger and I am not able to upload but would be happy to provide mulitple videos and photos to al alternate location. The vehicle has been taken to the Volkswagen dealership for multiple inspections. The dealership was unable to duplicate or identify the cause of the problem. Despite the dealership not being able to reproduce the problem, I do not feel the vehicle is safe to drive because of the unexpected shift into park while the vehicle is moving. Volkswagen and the dealership have been working on the matter, including an attempted buyer assist resolution and an appeal after Volkswagen denied the buyer assist request. The vehicle is currently being kept out of my possession while the matter is being resolved, and the dealership has provided me with a loaner vehicle. I am reporting this because I believe an unexpected shift into park while a vehicle is being driven presents a significant safety concern and could potentially result in loss of control, an accident, or injury. I have a perfect video of the error code and of it throwing it's self into park several times, but I don't know how to connvert to get it uploaded to you. Please reach out so I can get it to you for this case.

While driving on the highway in my 2023 Volkswagen Tiguan (approximately 70,068 miles), the epc warning light and oil warning light illuminated and the vehicle began to stall/lose power. I exited the highway immediately and shut the vehicle down safely. A substantial amount of engine oil leaked from underneath the vehicle after stopping. The vehicle was towed to a Volkswagen dealership. Dealer diagnosis included: * cracked oil pan, * oil separator failure, * and timing chain cover leak. The dealership advised there was no metal contamination found in the oil or filter and no confirmed catastrophic internal engine failure at this time, though the long-term condition of the engine cannot be guaranteed after the oil-loss event. I am submitting this report because the sudden oil-loss event and stalling condition occurred while driving on the highway and created a potential safety hazard.

The problem occurred immediately after picking my car up from a valet on 5/17/2026 around 9:00pm. The valet had pulled my car up to the front of the seattle park ‘n fly valet by sea-tac airport. I pulled out onto International blvd, and within a few seconds, the accelerator pedal became completely unresponsive. I was able to coast the car into the denny’s parking lot just north of the valet lot (about 0. 2 mi north of the valet). Everything else seemed to work just fine, except for the accelerator pedal (brakes worked just fine). I turned off the engine, and when I tried to restart the car, it was turning over but wouldn’t start. I called out someone to jump the battery, but the battery was fine. We then disconnected and reconnected the battery, and this resolved the issue and I was able to restart the car and drive away. It was dangerous that I was able to pull out onto a road, just to immediately lose any ability to accelerate. I’m lucky there was a nearby parking lot and I didn’t pull into busy traffic. Something seems to have happened at the valet, that was then triggered as soon as I pulled out onto the road. My guess is they tried to start the car and use the twist shifter in some combination that caused a fault that only triggered once I started to get up to speed. It’s strange because they were able to pull my car up to the front of the lot just fine, and I was able to pull out onto the roadway just fine, but the loss of acceleration only happened once I tried to get it up to speed.

The vehicle experiences sudden loss of motive power during acceleration. Between 30–60 mph, the transmission fails to upshift correctly, causing the engine rpms to spike to 5000 while the vehicle fails to gain speed. This creates a severe safety hazard when merging into high-speed traffic. Additionally, the infotainment system frequently blackouts and reboots while driving, and there are intermittent malfunctions with the power windows and door locks. Authorized dealerships have been unable to resolve these persistent safety defects after multiple repair attempts.

After replacing cylinder head, rack and pinion and steering assist I went to dealer just after warranty passed they told me that the oil separator and auxiliary/ secondary water pump. Car continues to have issues. Mainly with engine. Car could break down when driving with no oil getting to engine.

Here is a quick description of the issue from our volkswagon of huntington service report. We have had this ongoing issue for a few months now. The check engine light will come on. We get it checked, we replace a sensor, and all is good for a day or week. Then we do it again, replacing a different sensor. Now the dealer is saying the oil separator is leaking and requires repairs starting at $8,400 and going up from there as they uncover more. We have always maintained the car properly. From research this appears to be a very known issue with this model car and should be reported and covered by vw. Scanned vehicle and found faults present for secondary air. Observed oil separator leaking cuasing upper timing cover gaskets to blow out allowing oil to escape. Found secondary air ports in cylinder head clogged triggering check engine light. Advised to replace oil separator,cam shaft magnets and cylinder head to start. Approx $ 8480. 00 plus tax.

Our vehicle became unable to shift out of neutral after a traction event (wheel slip & loss of traction) when trying back into our driveway from a snow packed access alleyway then multiple system warnings occurred including transmission, traction control, abs, engine ecu, stability systems and anti-roll errors. I turned off the car and tried again with vehicle still unable to shift out of neutral with the multiple system warnings again occurring. I turned the vehicle off for a longer duration (10 minutes) while calling the service department at the dealership asking if our car should be towed. I turned the vehicle on again and it did go into drive and reverse but the check engine light displayed. Remote start no longer functions. Failsafe modes are not supposed to leave the car unable to shift out of neutral without warning! the fact that it threw multiple system errors at once, refused to shift, then later shifted after a longer power-down, and now has a check engine light strongly suggests a stored hard fault, not just a transient glitch. From a safety and regulatory standpoint, loss of motive control without driver input amounts to a reportable safety defect.  if this didn’t happen while trying to park in my driveway, it could’ve been much worse. If this had happened in traffic, while pulling into an intersection, on a hill, during a snowstorm, or while backing into traffic, the inability to shift could have caused a collision. I did report this to vw customer care and they immediately escalated this to a case manager. The vehicle was dropped off to the dealership this morning and will be discussing the event with the service manager on Monday and that I want  all stored fault codes printed, confirmation whether this triggered limp/failsafe logic, and what prevents it from happening again.  the vw case manager will also be contacting the dealership directly. The bottom line is that I do not feel safe operating this vehicle until the root cause is identified.  .

While driving, car dashboard lights up like a christmas tree with error messages, shakes, and goes into limp mode. Error messages include: - travel assist is currently not available - error: drive system. Please service vehicle. (engine block highlighted on screen image) - engine speed max. 4000 rpm (engine block highlighted on screen image) purchased car in November, problem happened in January <1200 total miles. Vehicle has been at dealership since January with no resolution (it is now may 29th). No invoice to upload as it has never been fixed. Vw of America initially claimed it was a software update which is false, actual parts defect. Now known defect with turbo r line, as evidenced by multiple reports from consumers across the country, unsafe vehicle to operate as occurs while driving.

I am filing a safety complaint regarding a serious transmission defect in my vehicle. The drive and reverse gears are not functioning properly. After driving for a few minutes and parking, when I attempt to reverse on an inclined surface, the vehicle unexpectedly moves forward instead of backward. Similarly, when the vehicle is parked facing downhill and I shift into drive to move forward, it rolls backward. There are no warning lights or dashboard indicators alerting me to any malfunction. Due to this defect, I have nearly collided with objects multiple times within just 15 days of ownership. Most concerning, I almost hit another vehicle behind me while attempting to drive forward, as my vehicle suddenly rolled backward unexpectedly. This creates a serious safety hazard for me, my passengers, and other drivers. I purchased this used vehicle with less than 10,000 miles from echopark dealership. Unfortunately, I am unable to return the vehicle because their return policy is limited to 7 days. However, this issue appears to be a significant mechanical or transmission defect that poses an immediate safety risk.

On December 3, 2025, Volkswagen of xxx performed an intake manifold recall repair on our 2017 Tiguan (VIN: [xxx] ) while the vehicle was under factory warranty. Approximately six weeks later the low coolant warning light appeared and the vehicle began actively leaking coolant. No other work had been performed between the recall and the onset of the leak. Our independent mechanic discovered physical damage to the original water pump consistent with a tool strike during the recall procedure. A new oem water pump was installed but failed immediately due to an underlying pressure issue originating underneath the intake manifold. The vehicle has been at vw of south charlotte since February 11, 2026 — seven weeks — with no root-cause diagnosis or repair. The dealership falsely documented oem parts as aftermarket, refused to diagnose the vehicle, and the service manager made his final decision based on text messages rather than any inspection. Vw customer care opened and closed six separate case numbers on this single unresolved complaint. Safety concern: the vehicle is non-operational and actively leaking coolant. The damage originated during a recall repair and has never been properly diagnosed or repaired. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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“brand-new 2026 vw Tiguan experienced sudden violent shaking, loss of power, and multiple warning lights within 24 hours of purchase. Dealer confirmed cylinder 1 misfire but could not identify root cause. Vw insists vehicle is safe to operate despite no explanation for failure. Vehicle is being returned without root-cause diagnosis. ”.

Xxx, the emergency mode kept coming on, on the dash of my daughters 2019 Tiguan. I took the Tiguan to vw and they recommended replacement of gear selector unit. This is the car my daughter drives. She recently graduated and is now going to the military, leaving for bootcamp on 6/15. The part has been on backorder for 6 months (since Dec 2025), so she has only been able to drive on short trips and can not take her car to bootcamp or to her first duty station in [xxx]. She is essentially carless due to this issue. We've been waiting on a part of over 6 months. The car is not safe to drive as it also constant message, "only exit vehicle in p position", "trans in emergency mode". I can't in good faith sell the car to buy another knowing it has this issue. We have been working with white allen vw in dayton ohio. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I’ve had my Volkswagen tiguen since 2021 fresh off the lot. I have been the only owner of the car at about 30,000 miles my head gasket blew, causing the engine to go into default after weeks in the dealer. They replaced the head gasket and stitched it up, the head gasket blew again at this point I was still under warranty so they agreed to replace the engine. It drove fine after the engine was replaced this year 2025. I started to have a whole host of problems. It began to jerk and hesitate at acceleration. My engine light came on with continuous jerking upon acceleration for weeks until I started to lose power in my engine. I couldn’t go over 50 60 mph. I would always pull the car over power it off and power it back on just to see if it would change and it didn’t do much I had a local mechanic add oil to each tire also drain the engine, which had shards of metal in it. And basically stitch the car back together until we can figure out the bigger issues. It’s only been a day since the oil was added to each tire. I had a very violent jerk of the engine, which made it feel and sound like I blew a tire I got out to look at the tire and it was just fine. It was the backfire of the engine going into the exhaust that caused such the violent jerk. Happy that no one was on the road. If somebody was behind me it would’ve easily been an accident. Most of these dealerships know exactly what’s going on and have been avoiding the big conversation of what to do next they rather just replace and band-aid these things into the consumer just gives up. I have two small children and this is the only means of transportation. I’m fearful that I’ll be stuck with a car note for a car. I can’t drive.

The check oil light indicated that the oil level had become too low. The volswagen dealership service technician identiifed the cause to be from the exhaust valve seals wearing out. The cylinder head needs to be replaced per their recommendation. No warning apart from the low oil indicator.

I purchased about 4 months ago with about 139,000 miles on it. The vehicle now has 142,000 miles and is experiencing excessive oil consumption—approximately 0. 9 quarts per 600 miles. Vw seems to be pushing this off and as I try to use my extended warranty I purchased when I got the car, aul has asked for an engine tear down. Vw knows about this issue, as it is internally a known issue for this model, yet they are unwilling to help. At time of purchase, this issue was not disclosed to me, as such had it been, I would not have chosen this car.

I own a 2025 Volkswagen Tiguan se r-line purchased new in August 2025. Since shortly after purchase, the vehicle has exhibited a recurring safety defect where the electronic parking brake engages without driver input and the vehicle shifts itself into park. This happens suddenly and without warning. This defect occurs multiple times per week, on average (upwards of 50+ times total since purchase) under varied low-speed conditions, including at stoplights, while slowly moving through traffic, and during parking maneuvers, etc. When it occurs, the vehicle stops abruptly as park is engaged. This creates a significant risk of being rear-ended or losing control in an intersection or traffic lane. There are no warning lights, chimes, or alerts beforehand. The behavior is intermittent and unpredictable, so there is no way to anticipate or prevent it during normal driving. This has not yet caused a collision, but there have been near-miss situations in traffic due to the sudden stop. I notified the dealership when the vehicle was new, but because the model had only recently been released and the defect could not be reproduced on demand, there was no formal inspection or repair, and no guidance was provided. The issue has continued multiple times per week since then. I have now found other 2025 Tiguan owners reporting the same behavior, which suggests this may be a broader safety defect rather than an isolated case. I am requesting an investigation due to the frequency of occurrence and the clear collision risk associated with unintended braking and shifting into park.

Our vehicle does not respond to the throttle pedal being depressed when the ac has been turned on at full and the car has been in direct sunlight for a period of time. We reside in florida so it is common to enter the vehicle during the summer months and the cabin temperatue is in excess of 200 degrees which requires putting the ac system on max. This problem occurs periodically and was address in the summer of 2025 at the vw dealership locally.

Subject: known carbon buildup issue in 2016 Volkswagen Tiguan tsi – request for recall and accountability to whom it may concern, I am writing to formally express my concern and request action regarding a well-documented and dangerous issue affecting Volkswagen tsi engines—specifically, severe carbon buildup. I am the current owner of a 2016 Volkswagen Tiguan tsi, which I purchased in April 2025 with approximately 84,000 miles on it. In June 2025, I had to have the intake manifold replaced due to carbon buildup—a repair that was still covered under warranty. However, shortly after, I was informed that the vehicle now requires a full engine decarb and replacement of all four fuel injectors, at a total cost of $3,296. This raises several serious concerns: •carbon buildup this severe at such low mileage is not typical wear and tear. It indicates a design flaw in the tsi direct-injection engine. •my extended warranty provider refuses to cover the repair, citing that it is a maintenance issue—conveniently shifting the responsibility away from the manufacturer. •this type of engine failure can result in dangerous performance issues, including: •sudden engine misfires •loss of power while accelerating •poor fuel economy •stalling or hesitation while merging or turning •catalytic converter damage •potential long-term engine failure I am stunned that this is not considered a safety issue worthy of recall, especially given the number of reports online and in service centers regarding this exact problem. The symptoms of carbon buildup can easily result in on-road danger to the driver and others. What’s most disheartening is that Volkswagen has long been aware of this flaw, yet no recall or extended warranty has been offered for affected consumers. I previously owned a 2015 passat and was a loyal vw owner—but now, as a single mother, I am expected to pay nearly $3,300 for a repair tied to poor engineering and design, not misuse or neglect.

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The vehicle intermittently fails to accelerate normally from a stop, especially in hot weather and when the a/c is running. When pressing the accelerator, the vehicle can hesitate for an extended period before moving. In a recent incident recorded on video (reference attachment), I pressed the accelerator and the vehicle failed to respond normally for more than 10 seconds, requiring me to pull over. This creates a serious safety risk when entering intersections, making u-turns, crossing traffic, or pulling into traffic, because the vehicle does not respond when acceleration is needed. The issue is intermittent and more frequent and severe during summer temperatures, when the ac is running continuously. The concern has been reported to the Volkswagen dealer multiple times. Dealer repair attempts were made in 2025, but the issue still exists. An independent mechanic also inspected/tested the vehicle and confirmed there is an issue, but advised that it likely requires Volkswagen-specific diagnosis, software, adaptation, or calibration. No consistent warning light appears before the hesitation occurs. The vehicle is available for inspection upon request. I have video evidence showing the delayed acceleration condition.

My 2024 Volkswagen Tiguan (purchased used) has a recurring and unsafe issue related to acceleration and the automatic start/stop feature. When accelerating from a stop or while maintaining slight pressure on the gas pedal, the vehicle lurches forward as if aggressively accelerating, even though my foot pressure has not changed. Additionally, when the start/stop feature re-engages after idling, the vehicle sometimes lunges forward despite my foot being firmly on the brake pedal. This behavior has occurred multiple times, creating near-miss situations that could have resulted in accidents. Service history: the issue was replicated by one Volkswagen technician during an overnight test drive but was not accurately reflected in the official service notes. A different technician (shop foreman) later claimed the concern could not be replicated and dismissed it as a “normal vehicle characteristic,” despite my report. The dealership performed a factory reset but the problem persists. Safety concern: this is a serious safety risk that poses a danger to myself, my passengers, and others on the road. I am especially concerned because my teenage daughter is about to begin driving this vehicle, and I do not feel it is safe for her. Manufacturer response: Volkswagen of America has declined my buyback request, stating that the situation “does not merit an offer. ” I strongly disagree, as the vehicle’s behavior is not normal or acceptable, and could result in unintended acceleration accidents. Request: I am requesting that NHTSA investigate whether this issue is a defect in the 2024 Volkswagen Tiguan and whether other vehicles may be experiencing the same unsafe condition.

My Volkswagen Tiguan suddenly and without warning blew a large amount of smoke out of the exhaust along with oil while driving at highway speeds - causing the cars behind me to lose visibility and possibly be covered with oil further reducing their visibility due to the vw manufacturers faulty crankcase breather/pcv valve. After this happened the car dash lit up with warnings and went into "limp mode" where I was not able to exceed 2500 rpm which is very dangerous when on the highway - luckily for my safety at this point I was on a side road. When I checked the engine I found no oil was left in it, it had been sprayed all underneath and up the back, which reduced visibility in the window. I was responsible for towing it to the dealer and was given no loaner despite being under warranty. Leaving myself and children without a vehicle. The dealer confirmed that my vw Tiguan had a faulty crankcase breather which caused over pressurization and pushed up the valve seals and cracked the oil pan. They only replaced those things and not the fouled spark plugs or oil filter from the crankcase breather failure which can cause more engine damage and dirty emissions.

The vehicle experiences intermittent (but daily) accelerator lag or failure to respond when the gas pedal is pressed from a stop. There is a significant delay—sometimes several seconds—before the car begins to move, even when the accelerator is fully depressed. This appears to be related to the power train and/or engine system. The hesitation in acceleration has created multiple unsafe situations, including near-miss accidents while turning left across traffic or entering intersections, when the car failed to respond as expected. This hesitation could easily result in a collision, particularly in high-traffic areas. The issue has been reported to the dealership on multiple occasions and while they have been able to reproduce the problem, it isn't every time and they turn the vehicle back over to us unresolved. Video documentation of the malfunction has been submitted to the service department, and they have acknowledged the issue is being reviewed by vw engineers. The vehicle has been inspected multiple times by the authorized Volkswagen dealership service department. Engineers from the manufacturer have reportedly been involved in the review, though we have not yet received a confirmed diagnosis. There are no warning lamps, dashboard messages, or error indicators associated with the accelerator issue. The first noticeable delay in acceleration from a stop occurred at least 6 months ago and has continued intermittently since.

Transmission in emergency mode. Exit the vehicle only when in p park.

The car vibrates excessively when in drive or reverse and the brake is being held. Vibrations stop if car is put in neutral. Car also hesitates when driving. And is a major safety issue when driving. The vibration is also in my opinion a safety concern because it’s causing excessive wear and tear on other parts of the car. The dealership acknowledged that there’s excessive play or wear in the dogbone mount but refused to replace it because I was told that part should be bad because there’s less then 30k miles in the car. But I am still having the same problem with the vehicle and have had it in the dealership service department where they will keep the vehicle for a few days and then tell me they can’t find anything. The most recent visit to the dealership they never even test drove the vehicle and I even had the service rep sit in the loaner and then sit in my vehicle to feel the difference between the two which is extremely obvious and he refuses to acknowledge it.

I am submitting this complaint regarding my Volkswagen vehicle because it has experienced two recurring defects during the warranty period that remain unresolved despite repeated repair attempts by the dealership. Issue 1 – excessive oil consumption the vehicle has had a persistent excessive oil consumption problem since the warranty period. The dealership has attempted to repair this defect six times, including replacing an engine valve, but the issue continues. The vehicle still consumes excessive oil, requiring frequent monitoring and topping off. This creates a serious safety concern because low engine oil can result in engine damage, sudden loss of engine power, engine seizure, or an increased risk of fire while driving. Issue 2 – electrical system failure the vehicle has also experienced ongoing electrical problems involving the keyless entry system, repeated 12v battery low warnings, inoperative interior lights, and loss of connectivity with the Volkswagen mobile app. These problems have persisted despite nine repair attempts by the dealership and remain unresolved. The vehicle has spent a significant amount of time at the dealership throughout 2025 and 2026 for these recurring defects. The repeated electrical failures raise significant safety concerns. The keyless entry system can fail to unlock or recognize the key, the low 12v battery warnings indicate an unresolved electrical issue, and the loss of interior lighting reduces visibility inside the vehicle. The repeated failures also raise concerns about the reliability of other critical electrical systems and the possibility of the vehicle failing to start or operating unpredictably. Despite six repair attempts for excessive oil consumption and nine for electrical defects, Volkswagen has been unable to permanently fix these issues. I request NHTSA investigate whether these recurring failures indicate a broader safety defect requiring corrective action. Currently car is back to dealership for repair again.

My vehicle has been consuming oil at a rate of approximately 1 quart every 1,500 miles. The vw dealership I took my vehicle into reported that vw considers this “normal”. After arguing that any vehicle that will burn its entire oil reservoir between oil changes is not normal, they agreed to perform an oil consumption test which is currently underway.