Power Train Problems of BMW X5 - part 1

BMW X5 owners have reported 278 problems related to power train (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of BMW X5 based on all problems reported for the X5.

1 Power Train problem of the 2014 BMW X5

Failure Date: 06/19/2026

I purchased my vehicle around labor day of 2020. I still own and operate the vehicle. Since I have owned my vehicle, I have repeatedly been told my turbos are leaking oil, etc. I have even had several oil leaks repaired on my car. Fast forward six years, and I am buying 5 quarts of oil every two weeks and topping up the oil in my vehicle every week, at least 2-3 quarts per week. I also have smoke coming out of the tail pipes intermittently. The car also smells like it is burning oil, but there are no visible oil drips on the ground currently. I discovered by research there have been two lawsuits: isley v. BMW of north America llc, et al. , case no. [xxx] in the u. S. District court for the district of new jersey ([xxx] [xxx]), and bang v. BMW (original [xxx]) ([xxx]). I have had repeated documented repairs and I never received a notice for these cases. I need my vehicle repaired and I need BMW to take ownership of this defect. I never received one notice regarding these lawsuits, or I would have had my vehicle repaired. I only have 102,000 miles (currently), so my vehicle should be covered in terms of mileage. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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2 Power Train problem of the 2015 BMW X5

Failure Date: 06/14/2026

I drive a 2015 BMW X5. While driving on a local street, I heard a severe banging noise underneath the car. I pulled over, and it turned out the front driveshaft had broken, striking the transmission pan and other parts beneath. When I towed the car to the shop the mechanic also found that an ac drain line dripped onto the driveshaft u-joint, causing rust over time, which led to this failure. There were no warning lights prior. If this had happened on the highway, it could have caused far greater damage--potentially to the transmission, transfer case, front differential, or even the engine. This was a serious safety risk, and I urge the NHTSA to investigate this design flaw and consider a recall on affected models before others suffer similar damage.

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3 Power Train problem of the 2020 BMW X5

Failure Date: 05/07/2026

Front differential input bearing failure. Sudden jerking that almost causes loss of control. This poses a safety risk. This seems to be a know problem for the 2020 BMW X5 m50i no warning lights and I did not experience hearing any sounds as other have reported.

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4 Power Train problem of the 2021 BMW X5

Failure Date: 05/01/2026

2021 BMW X5 xdrive45e phev, built October 2020 by BMW ag (germany). In-service oct 28, 2021. Vehicle intermittently shows "drivetrain malfunction — you can continue driving" warning. Dme scan reveals 5 fault codes, all for the conventional 12v pinion starter: 21a50a — pinion starter: timeout occurred several times in succession 21a511 — pinion starter: timeout 21611a — pinion starter: starting torque could not be built up; high counter torque and/or undervoltage 216119 — pinion starter: line break in starter control (kl50/kl30) 216115 — pinion starter: attempt to start with blocked starter detected 21a50a and 216115 are protected memory codes that cannot be cleared by standard obd-ii tools. The main 12v agm battery was replaced and registered; codes continue to recur. This signature matches the b58 pinion starter defect addressed in NHTSA recall 24v-576 (Aug 2024) and 25v644 (Nov 2025, physical starter replacement). The vehicle's german manufacture date falls inside the production windows of kba recalls 15630r, 15632r, and 15633r — all covering X5 g05 for short-circuit and fire risk from starter relay corrosion or inadequate mounting. BMW ag has issued an adac advisory not to leave affected vehicles running unattended after starting. BMW na customer relations was contacted. Initial verbal response: u. S. Recalls don't apply because the xdrive45e phev uses a different starter than non-hybrid b58 vehicles. However, codes 216115 and 216119 only exist on vehicles equipped with a conventional pinion starter — confirming this vehicle has the same component. The subsequent written denial pivoted to warranty expiration without addressing the technical or recall-scope questions. Filing so the field record reflects this defect signature for future u. S. Recall scope expansion analysis.

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5 Power Train problem of the 2023 BMW X5

Failure Date: 05/01/2026

Noticed noise. Took to dealer. Dealer confirmed bad front pinion/bearing and need front differential. Will be very dangerous if not fixed! dealer has had this issue before and online forums state big issues.

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6 Power Train problem of the 2021 BMW X5

Failure Date: 04/26/2026

The vehicle’s rear differential has developed significant internal "play" (excessive clearance between gears). This defect manifests as abnormal vibration and inconsistent power delivery to the wheels. The vehicle was inspected by an authorized BMW technician at passport BMW . Although I reported hitting a curb (low-speed impact), the official diagnostic report from the BMW technician explicitly stated that the curb impact did not cause the differential failure. The technician identified the issue as a failure of the internal differential components, which is consistent with numerous reports of drivetrain defects in the b mw X5. Despite the vehicle being well under the 50,000-mile warranty threshold and the technician’s own finding that external damage was not the cause, BMW is currently refusing to honor the warranty repair for this critical mechanical component. I purchased the vehicle in March 2025 certified pre owned.

7 Power Train problem of the 2021 BMW X5

Failure Date: 04/18/2026

Front differential - repair/replacement on 2021 BMW X5 m50i. Extreme safety issue. Ironically failed right after 50k warranty. Currently at 50742 miles. Brought vehicle in 6 different occasions in the last year and a half. One time for a similar issue (approx. 1 year ago) and instead of addressing the problem at the time they just replaced the transfer case, masking the root issue and pending complete failure of the system.

8 Power Train problem of the 2019 BMW X5

Failure Date: 04/14/2026

My daughter was driving my BMW X5, it went to neutral and not moving, she was panicked and stopped the car and ignition. After restarting the car, it worked for a day, then it happened again, also, I see notifications on dashboard for restraint warning, saying, airbag, and seat belt tension are reduced. I took to fairfax BMW in va, BMW quoted $2662, informed that my BMW went out of extended warranty over a month, I asked goodwill request to BMW, still declined.

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9 Power Train problem of the 2020 BMW X5

Failure Date: 03/25/2026

Failure of front differential.

10 Power Train problem of the 2020 BMW X5

Failure Date: 03/23/2026

The contact owns a 2020 BMW X5. The contact stated that the vehicle was taken to a dealer for routine maintenance and it was discovered that there was a coolant leak and that there was a failure with the front differential failure, and that the a/c unit was leaking. The leaking valve was replaced but the differential was not repaired. The contact stated that the failure was a known failure with the vehicle. The manufacturer was made aware of the failure. The failure mileage was 70,000.

11 Power Train problem of the 2023 BMW X5

Failure Date: 03/14/2026

Drivetrain malfunction reoccurring 2x in 45 days. First error message the dealer charged me $600 to fix. Bringing car in second time now. Unsafe to drive due to power cutoff. This is a phev. Car is under the original mfr warranty and less than 3 years old.

12 Power Train problem of the 2022 BMW X5

Failure Date: 03/01/2026

Front differential failed at 51,000 miles.

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13 Power Train problem of the 2020 BMW X5

Failure Date: 02/27/2026

Please read file attached.

14 Power Train problem of the 2022 BMW X5

Failure Date: 02/19/2026

While driving, the vehicle displayed a 'drivetrain malfunction' warning on the dashboard and began jerking. I safely pulled over and turned off the vehicle. Immediately after stopping, there was a distinct, strong electrical burning smell coming from the engine compartment. The vehicle was inspected by an authorized BMW dealership. The dealer diagnosed a catastrophic failure of the starter motor. The vehicle's computer logged fault codes 21611a (excessive counter-torque), 21a511 (start system: timeout), and 216119 (line disconnection). These codes confirm the starter motor suffered a severe electrical overload and thermal event. This premature failure and fire hazard identically matches the safety risks outlined in BMW's recent massive starter motor recalls (such as NHTSA recalls 25v-636 and 26v-056), but my specific vehicle is currently excluded from those recall campaigns. The starter requires complete replacement due to this overheating damage.

15 Power Train problem of the 2026 BMW X5

Failure Date: 02/18/2026

I went to drive the car and there was a drivetrain malfunction error. The car could not be driven and had to be towed.

16 Power Train problem of the 2022 BMW X5

Failure Date: 02/03/2026

I am writing to formally express my concern regarding serious and repeated safety-related failures with my 2022 BMW X5 xdrive45e, VIN [xxx] . I purchased this vehicle in 2022 through a custom build, at a purchase price exceeding $80,000, with the expectation of reliability, safety, and premium quality consistent with the BMW brand. In October 2025, while my wife was driving with my son in the vehicle, the hybrid component safety box failed without warning, causing the vehicle to stall on the roadway. This created a dangerous situation for my family. The vehicle was towed to the dealership, repaired, and returned to me on November 4, 2025. Unfortunately, on February 3, 2026, a second serious incident occurred. After my wife picked up my son from school, the vehicle began jerking violently while driving, and a strong sulphur-like odor entered the cabin. Fearing for their safety, she immediately stopped driving. The vehicle was again towed to BMW of jackson. I was informed today by the service advisor that the failure is due to another hybrid-related component, specifically the eme hybrid inverter, and that BMW north America is declining to cover this repair under warranty. These repeated hybrid system failures are deeply concerning, particularly given that both incidents involved my wife and children and posed clear safety risks. As a result, both of my children are now fearful of riding in the vehicle, and this situation has caused significant emotional distress to my family. Given the nature of these failures, the vehicle’s purchase price, and BMW’s emphasis on safety and engineering excellence, I find it unacceptable that a critical hybrid component failure would not be covered under warranty—especially following a prior hybrid system failure less than four months earlier. I am requesting that BMW north America review this matter promptly and provide a reasonable resolution, including warranty coverage for the eme hybrid inverter repair. Information redacted pursuant to the freedom of information act (foia.

17 Power Train problem of the 2023 BMW X5

Failure Date: 01/21/2026

Drivetrain malfunction creating error message of critical failure on brake system and chassis. The first of 2 such issues so far in 4 months of ownership. Car is under original mfr warranty. Dealer charged $600 to fix. This is a phev and with the electrical system issues it prevents the car from functioning safely.

18 Power Train problem of the 2026 BMW X5

Failure Date: 01/02/2026

I purchased the car on 12/29/2025. While driving the car on 1/2/2026, I was parking the vehicle when an error message that said "drivetrain malfunction" appeared on the screen, which informed me that I needed to take my car to a service center. Luckily I was not moving at a high rate of speed and I was able to park the vehicle with no issue. I was able to drive the vehicle to a dealer for service the next morning (1/3/2026). They ran diagnostics but were not able to replicate the issue. BMW north America was consulted and they had the dealer drain the battery and reset the system. This cleared the error. The dealer commented that there were two other similar vehicles that were in for the same issue. There were no issues, warning lights prior to the failure, and they first appeared on 1/2/2026. No fix was applied to the car, just a reset of the system. Since then, the car has a slight lurch / jerk when accelerating on occasion in electric only mode.

19 Power Train problem of the 2019 BMW X5

Failure Date: 12/17/2025

Transfer case on 2019 X5,yes available for inspection upon request. At stop position making right turn or left turn the vehicle jutters,also in reverse. Yes - confirmed by the BMW service center who tried to charge for diagnostic fee. Manufacturer knows of issue on 2019 X5 models. Video of these transfer case issues all over online in videos. Issue started about 6 - 9 months ago.

20 Power Train problem of the 2025 BMW X5

Failure Date: 12/04/2025

The vehicle shut off and would not start while at a stop light. It is new: under one year old and still within warranty. The error was a “restart not possible. Drivetrain fault” as shown in the picture. My safety as well as my passenger’s were put at risk due to being in a congested roadway and unable to move. After attempting to restart the system software, I then observed a “high voltage battery” warning. At that point my passenger and I exited the vehicle. As I was on the phone with emergency roadside assistance while out of the vehicle for about 10 minutes, the vehicle was able to start with the warning now displaying “drivetrain. You can continue driving. Have the problem checked by your local service center. ” I hesitantly drove the vehicle home. While parked, I checked about 15 minutes later and the issue resurfaced (as pictured). The problem has not yet been taken to the dealership. It will be tomorrow. The issue has not yet been inspected by any other representatives. There were no warning signs whatsoever before the issue occurred. The vehicle simply shut off, and upon attempting restart the aforementioned errors were observed.

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21 Power Train problem of the 2019 BMW X5

Failure Date: 12/02/2025

I am reporting a serious safety defect involving the oil pump assembly on my 2019 BMW X5 xdrive40i. While driving at low speed in normal conditions, a sudden dashboard warning appeared stating: “engine oil pressure too low — stop carefully. ” I immediately pulled over and shut off the engine. My vehicle had been serviced by an authorized BMW dealership less than one week earlier, and no faults or issues were identified. There were no warning signs or symptoms prior to the failure. An independent licensed repair facility inspected the vehicle after the incident and confirmed that the oil pump had failed due to a defective plastic internal component used in the pump’s design. The failed parts are available for inspection upon request. This failure created a significant safety risk, as sudden loss of oil pressure can cause engine seizure, loss of power steering, loss of braking assist, and an inability to safely control the vehicle. Had this occurred at highway speeds, the consequences could have been severe. I have since learned that this exact issue has been reported by other owners of 2019 BMW X5 vehicles and other BMW models using the b58 engine, which were equipped with an oil pump containing plastic internal drive components prone to cracking or separating. BMW appears to have updated the oil pump design to a metal version in 2020 and later models, suggesting the manufacturer was aware of the weakness of the earlier design. The defect was confirmed by an independent service center. The vehicle had also been inspected by BMW one week prior during scheduled service, yet no issues were detected. Because this failure presents a clear safety hazard and appears to be related to a widespread design flaw, I respectfully request that NHTSA open an investigation into the oil pump used in 2019 BMW X5 vehicles and consider issuing a safety recall.

22 Power Train problem of the 2021 BMW X5

Failure Date: 11/08/2025

The vehicle shakes at low speeds with a jolt and vibration when turning. When I pressed the accelerator from a standstill, the gas pedal broke off from its floor mounted bracket.

23 Power Train problem of the 2021 BMW X5

Failure Date: 11/05/2025

I am writing to formally file a complaint and request an expansion of recall coverage regarding a starter motor failure on my 2021 BMW X5, which occurred at approximately 38,000 miles. Recently, my vehicle experienced a sudden failure to start. After inspection, the issue was diagnosed as a starter malfunction. I am aware that BMW has issued a recall addressing starter-related defects for certain vehicles of the same model year and configuration. However, I was informed that my vehicle’s VIN is not included in the current recall list. Given the relatively low mileage, the nature of the failure, and the existence of an official BMW recall for the same defect, I believe this issue represents a manufacturing or design defect rather than normal wear and tear. A starter motor failure at 38,000 miles is both unexpected and unacceptable for a premium vehicle such as a BMW X5.

24 Power Train problem of the 2022 BMW X5

Failure Date: 11/03/2025

Like numerous other BMW owners, my transfer case is failing in my vehicle. It’s actively causing jerking/shuddering/locking up at low speeds and while making turns. This poses a significant danger to the driver and passengers in the vehicle, and other drivers as well while turning or trying to merge with traffic. I’ve brought the car into the dealer had the transfer case fluid changed according to the service bulletin that exists for this problem but it persists. I’ve brought the vehicle back into the dealer and told that now BMW suggests paying for another fluid change. This is obviously a known problem (thus the service bulletin), it’s persisted with models like mine for over 5 years, had cost numerous owners significant amounts of monies out of pocket, and poses a safety risk given the transfer case is a foundational component of these vehicles’ drive trains. Finally it’s a problem BMW openly admits they caused with improper fluid in the component. I believe the above meets all criteria for a formal recall that BMW should cover (or reimburse) the costs for given their negligence and the risks it poses. Can you confirm why this hasn’t risen to a formal recall? and confirm the steps you’re actively taking to elevate this to that status with BMW?.

25 Power Train problem of the 2025 BMW X5

Failure Date: 11/02/2025

Drivetrain lights came on out of no where. I was coming to a red light and when car stopped the light on dash came on and message came on for drivetrain malfunction. Car was turned off and on and message went away. Car was brought to dealer and they were able to diagnose saying 3 injector problem and need to replace cylinder head. Was told this a problem with the new v8 engines. Can be dangerous if driving and message is gone and continue driving.

26 Power Train problem of the 2024 BMW X5

Failure Date: 10/22/2025

I bought this car and started to have issues after a couple weeks. Because it is a hybrid model, it works perfectly fine when the car is running on the battery. Immediately the engine began to work, I get hesitation and the car drives rough. I took it to the first dealership that said there was water in the engine but they were proved wrong because what they show as water was apparently fuel that did not burn the right way in the cylinder. The dealership came with another excuse that the filter had traces of water which makes them to believe something was wrong. I took the car to another BMW dealership as I did not trust their diagnosis. The other BMW dealership performed some work on the car but then came to the conclusion that their hands were tied because of what the previous dealership reported to BMW north America. I called BMW north America and they told me to go back to the dealership after I had no success at the dealership. I believe this is a lemon case and also constitute a safety hazard because I nearly had an accident because the car switch from running on battery to combustion and immediately on the highway. The speed slows abruptly and car began to drive rough. I would appreciate any traction this can get from the board to resolve this with the manufacturer.

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27 Power Train problem of the 2019 BMW X5

Failure Date: 10/13/2025

My starter motor overheated and my car would not start and my car indicated the fluids and components were overheated - my dealership confirmed the problem with a video they sent me. If I was still driving the car, I don't know what would have happened to me my daughter and husband in the vehicle. I called my service rep and the dealership is looking into it as my VIN does not have the recall. Nothing was wrong and no lights were on the vehicle prior to the car not starting. I had been driving it for about 25 minutes. In may of this year, not even 6 months ago, they had to replace a "heat management module", which cost me $2500 and they said it is not related. They found 8 fault codes at a frequency of 255. The dealership is telling me this is not related, but I have a hard time believing that.

28 Power Train problem of the 2021 BMW X5

Failure Date: 10/08/2025

The front differential on my BMW failed at just 47,000 miles. There were no warning lights—only a faint grinding noise that gradually worsened. After inspection, the dealership confirmed the failure and quoted $9,000 for replacement. In speaking with other BMW owners, I’ve discovered this issue isn’t isolated. Many have experienced front differential failures around the 50,000-mile mark, suggesting a troubling pattern. This raises serious concerns about the reliability of this component and whether BMW is adequately addressing what appears to be a recurring problem.

29 Power Train problem of the 2013 BMW X5

Failure Date: 10/04/2025

My vehicle has suffered catastrophic electrical failure due to water intrusion directly into the rear cargo compartment. This water ingress has destroyed vital electronic control modules that were designed and placed in low-lying, unsealed body cavities—an engineering layout heavily documented as a design vulnerability in the e70 chassis. My safety was put at risk as this happened on the highway and threw my SUV into limp mode. I could not drive the speed limit on the highway and had to drive home with my hazard lights on while cars drove around me and almost collided with me on the highway. BMW has previously acknowledged the severe liabilities of placing sensitive electronics near drainage paths, as seen in the catalano v. BMW of north America litigation. This is not a wear-and-tear issue; it is a design failure that leaves critical safety components swimming in water during normal rain events.

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30 Power Train problem of the 2024 BMW X5

Failure Date: 10/02/2025

2024 BMW X5 with 22k miles, leasing the vehicle. Had the vehicle in the dealer, herb chambers BMW of boston a few months ago to fix a brake recall and change the oil. Dealer said they fixed both, and also said they needed the vehicle all day to fix the brakes, so they got me an uber and then dropped off the vehicle when it was completed. Fast forward to today, October 2, 2025. Drive train warning came up when driving the vehicle, told to find a safe place to stop, within 10 seconds the vehicle lost most of engine power. Was able to stop in a safe location, contacted roadside assistance, numerous warnings came up on screen. Roadside assistance said to start and stop the vehicle and this cleared the message, said that vehicle was safe to drive, it was probably just a sensor issue that put the vehicle into some type of safe mode (what a horrible thing to do, an enormously unsafe as the operator should determine this). Two days later, another drive train warning and the vehicle on it's own moved the transmission into neutral while driving at 30mph. This issue with going into neutral on it's own, I found out through speaking with my wife, that this happened a couple of week prior as well. I called road side assistance and had the vehicle towed, called the dealer to get a loaner as this vehicle is not safe to drive in it's current condition. After this issue, I looked my vehicle up by VIN and saw that the brake recall wasn't fixed yet to my surprise. When I spoke to the dealer today as the vehicle was being towed there with this drive train issue, I said were my brakes for this recall fixed, they said the software issue was fixed, but not the mechanical issue. I said please fix this brake recall while in there looking at this drive train issue. Vehicle is clearly not safe to drive in this condition, and you can use your imagination if this happened while driving at highway speeds or various other scenarios, not good at all.

31 Power Train problem of the 2018 BMW X5

Failure Date: 10/01/2025

Vehicle: 2018 BMW X5 xdrive40e recall: NHTSA safety recall 24v-608 complaint description: my 2018 BMW X5 xdrive40e experienced a sudden electric motor electronics (eme) failure that rendered the vehicle inoperable. This occurred before the recall remedy for NHTSA safety recall 24v-608 was completed. It is available for inspection upon request. Recall 24v-608 addresses fluid intrusion into the electric coolant water pump electrical connector, which can cause electrical shorts, overcurrent conditions, and power instability. The eme is directly dependent on stable electrical conditions. After the vehicle failed, the recall repair was performed; however, completion of the recall does not reverse electrical damage that may have occurred prior to the repair. Prior to the eme failure, I made multiple attempts to have the recall addressed by contact BMW authorized dealers, but the recall condition remained unresolved. Following the failure, BMW of north America denied responsibility in writing, closed my case, and did not identify any alternative root cause or provide technical findings explaining the eme failure. The vehicle is not drivable and requires approximately $12,000 in repairs. I also incurred rental vehicle expenses as a result of BMW’s refusal to repair. This appears to be recall-related electrical damage affecting a critical control module, creating a safety concern due to sudden loss of vehicle function putting safety of myself and others at risk. I am submitting this complaint to document a safety-related electrical failure associated with recall 24v-608 and BMW of north America’s refusal to remedy the resulting damage.

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32 Power Train problem of the 2021 BMW X5

Failure Date: 09/29/2025

Around September, 2025 several small puddles was under the vehicle. Made an appointment with BMW to have a 2021, X5 inspected. The BMW dealership technicians diagnosed the problem as a water pump -engine coolant. There was no previous warning messages notifying a problem with the vehicle cooling system. Vehicle total mileage was around 58,000 miles at the time of problem found. Cost of damage was over $2,000 to fix at dealership.

33 Power Train problem of the 2025 BMW X5

Failure Date: 09/18/2025

While driving my 2025 BMW X5 xdrive50e, a “power supply malfunction – stop vehicle immediately” warning appeared on the dashboard, advising me to pull over and call roadside assistance. The vehicle had previously been repaired for the same issue at braman BMW in miami, but the malfunction recurred the next day after getting it back. Prior to this, the car was out of service for 103 days following an accident due to BMW’s inability to supply a backordered acceleration sensor. The repair was completed in August 2025. The repeated “power supply malfunction” messages raise concerns about the reliability of the electrical and hybrid power systems and potential loss of power while driving. The issue has been confirmed and documented by braman BMW. The component remains under BMW inspection.

34 Power Train problem of the 2021 BMW X5

Failure Date: 09/17/2025

Component failed: water pump (engine cooling system) - part has been superseded by BMW with upgraded version, indicating manufacturer awareness of defect. Failed component retained and available for inspection upon request. Safety risk: complete water pump failure at 56,611 miles created immediate risk of catastrophic engine overheating and potential engine seizure while driving. BMW-certified mechanic warned that driving vehicle even short distances could result in total engine failure, creating risk sudden loss of power on highways/intersections engine fire from overheating being stranded in dangerous locations/conditions complete loss of steering assist if engine stops confirmation: BMW-certified independent mechanic (formerly employed by BMW) confirmed water pump failure and identified it as "common b58 engine issue. " BMW dealer (silver spring) immediately quoted exact repair cost of $2,300, indicating familiarity with this failure pattern. Mechanic documented that BMW has superseded the original part with an upgraded design, suggesting manufacturer acknowledgment of defect. Inspection status: failed part preserved by mechanic with full documentation including BMW's superseded part number from their system. Vehicle not inspected by BMW due to dealer network failure - three dealers failed to respond, one took 5+ hours to return call, none could provide service in reasonable timeframe. Warning signs: no prior warning symptoms. Failure was sudden and catastrophic. Temperature gauge spiked without warning during normal driving conditions. No previous cooling system issues or warning lights. Regular maintenance performed per BMW specifications. Additional pattern evidence: research reveals extensive documentation of identical b58 engine water pump failures between 40,000-60,000 miles across multiple BMW models (x5, x3, 3-series, 5-series) on owner forums. BMW's decision to supersede the part without issuing a recall suggests they are aware of the defect.

35 Power Train problem of the 2021 BMW X5

Failure Date: 09/11/2025

Steering the vehicle in a low gear causes the vehicle to tremble or shudder. The dealership identified the problem to be the transfer case fluid. In manufacturing, BMW put a fluid which did not meet the specifications of the vehicle. The transfer case fluid is documented in the manual of BMW X5 m50i (2021) to be something which does not require replacement in the lifetime of the vehicle. I raised this issue when the vehicle was under warranty, but the dealership ignored the issue. After the warranty period was over (62,000 miles), the dealer recommended that I replace the fluid to fix the shudder issue. It is a very well known issue, and there is a service bulletin issued to the dealerships to deal with this particular case (sib 27 02 20). After the fluid replacement, the issue went away. This issue is widely known by the dealership, and it is a safety issue. I had to pay for the fluid replacement, and I believe BMW should have recalled this issue to replace the fluid for all X5s manufactured in 2020 and 2021. This is a safety issue.



X5 Service Bulletins
X5 Safety Recalls
X5 Defect Investigations