Crankcase (pcv) Problems of Volkswagen Passat

After several attempts to identify the cause of my vehicle's excessive oil consumption, white smoke out of tail pipe and illumination of my low oil and epc lights, the vw dealership has diagnosed my vehicle with a failed air oil seperator/pcv stuck in the open position. During the times the epc light illuminated, I had a loss of engine power which potentially could have led to engine shut off and caused an accident. I often drive on the highway with construction with my children so sudden engine shut off is a safety risk. On 12/18/20, I took my vehicle to the vw dealership for excessive oil consumption, low oil and epc lights and white smoke out of tailpipe. The technician diagnosed and repaired a blown upper timing gasket. The problems persisted and I dropped off the vehicle at the dealership on 01/19/21. Dealership advised computer update was needed and was performed. Problems persisted and vehicle was dropped off on 01/30/21 and 03/15/21 for oil consumption tests and advised results were in 'acceptable' range for vw. After researching work history on my vehicle, I remembered I took it in while under warranty (under 36k miles) for fuel smell in cabin when using the heater. Vw technicians checked fuel lines, injectors and fuel tank but found nothing wrong. After researching this topic on various vw blogs, I found the fuel smell in cabin was caused by failed pcv system in numerous cases. I believe my air oil seperator/pcv was faulty and began to fail while my vehicle was still under warranty. Further internet research revealed websites and blogs with numerous mentions of failed vw/ Audi pcv systems. I believe my vehicle may have been affected by a faulty part installed and has been overlooked by vw.

See all problems of the 2016 Volkswagen Passat 🔎.

I have owned this car for beraly one month. 2 days after purchasing the 02 sensors went bad. 1 week later my pcv valve went bad. And 2 days after that my car stalled on me while driving down a canyon and would not start again. I lost control and ended up on the side of the road. I though I was going to kill myself. After sitting there for about an hour the car turned on but was extremely shaky and would stall the minute I slowed down or came to a stop. I managed to get the car to a repair shop only to have the engine die on me. The car cannot be turned on or moved. I was told it might be the timing chain which is a common issue in this engine. I'm being told I need to practically replace the engine which will cost more than what the car is worth. If I try to turn the car on. It hesitates a lot and once it turns over it immediately shuts off. I have beraly made 1 payment on this vehicle and it already died on me. Was excited about such a nice looking car only to have fall under the lemon car category in my opinion. I am now left with a car payment. A huge repair bill and no mode of transportation all due to Volkswagens faulty design.

See all problems of the 2010 Volkswagen Passat 🔎.

Rear main oil seal needed to be replaced. It was compromised by excessive pressure in crankcase because pcv breather was not functioning. There was no check engine condition prior to the rear seal being compromised. Rear main seal replacement costs $1146, parts and labor. Pcv valve was also replaced. I noticed an oil leak on garage floor, which led me to bring it into service for a technician to inspect. I would like vw to compensate for some of the costs for this repair.

See all problems of the 2009 Volkswagen Passat 🔎.

While driving home (approx 50 mile trip) I heard a loud screeching noise from the engine area. I was traveling on a highway at about 60mpg. I pulled over, turned off the car and saw smoke and smelled burning from under the hood. I opened the hood and smoke billowed out of the back of the engine bay. I looked under the car to see if it was leaking anything and found a large amount of what seemed to be oil dripping from the car. I then noticed a trail of oil from before I stopped the car. I left the car in place for a tow to not damage the vehicle anymore than it already was. It was towed to the vw dealership in town where they diagnosed the problem is that the pcv valve stopped working correctly, which caused the rear main seal to fail and become completely destroyed. They said that the entire engine needs to be taken out to replace the seal and is going to cost $1700. Vehicle did not have any indication of problems before the screeching noise and did not have any check engine light come on during the problem. Vehicle has just over 100,000 miles and vw of America denied to help out in anyway when contacting customer service. Another incident with exact same issue was found when I looked at open claims on NHTSA and many other claims are easily found with a simple google search. I have had all maintenance performed on time and at vw dealerships and was never advised to get the pcv replaced as normal maintenance.

Bad ignition coils and misfires. Cam follower and camshaft wear problems. Diverter valve (dv) failure. High pressure fuel pump (hpfp). Carbon build up and cold start misfires. Intake manifold runner control (imrc) motor. Timing chain, chain adjuster and tensioner. Vw and Audi fuel pump control module. Pcv valve failure.

See all problems of the 2006 Volkswagen Passat 🔎.

My car has 76000 miles and is otherwise in excellent condition. I just got a check engine light, and after replacing the pcv valve, and I was told by my mechanic that the rear main engine seal is leaking. The car is out of warranty at this point and now I have to spend almost $1000 in repairs. This is something that should be covered by vw warranty, as there are so many cases of this exact failure at the same amount of miles.

Pcv valve failed, at some point prior to Jan 11, 2016 and 77,748 miles. No warning lights or other indication of the failure ever occurred until the pcv valve failure cascaded into failure of the engine rear main seal (between the engine and transmission), resulting in a massive oil leak. Based on a web search, this is an extremely common situation, not only for the valve failure, but the method in which it first becomes apparent to the vehicle owner (rear main seal failure). Cost to repair was over $1900. Pcv valve failed again at some point prior to oct 24, 2017 and 116,102 miles. Similar to the first event, no indication of the failure occurred until this cascaded into an upper timing cover seal failure. Cost to repair was over $600. My research clearly indicates vw pcv valves are known to be trouble-prone. Vw extended the warranty on pcv valves to 10 years/120,000 miles on certain vw models (including Passats) up through 2008 model year. My experience, and the experience of other owners, certainly suggests 2009 and 2010 vw Passats still have this problem, and one has to wonder why these model years are excluded from the extended warranty, especially considering the outrageous costs that owners are left to deal with.

Pcv valve went out; and in turn, the rear main seal ruptured a major oil leak between engine and transmission. Dealership concluded the pcv position crank valve cause back pressure into the crank resulting in damaging the rear main seal. Vw has issued an extended warranty on pcv on certain models causing this issue, but the tsi 2009 and up have not been included in this recall. This issue could result in a catastrophic engine failure due to all oil leaking out of car while on road. This occurs when pressure builds up to pcv fails when car is being operated.

While driving in-city, I experienced sudden intermittent loss of power. My mil indicator started flashing a yellow engine light. After limping the car home (<1mile) my vehicle developed a hammering noise before I turned it off. I took the car to an auto repair shop and they determined the issue was engine sludge. After contacting vw regarding the issue they refused to take any actions. I have fully maintained the vehicle based on manufacturer scheduled service intervals, often more frequently than listed. I did learn there was an active recall for the positive crankcase ventilation system which can directly effect the development of engine sludge. Despite this connection, vw still refused to take any action on the damage to my vehicle.

2009 vw Passat 2. 0t. Oil leaking from rear main seal. Rear main seal failed at about 75,000 miles, not covered under warranty. First indication was oil spot on driveway and then check engine light came on. Inspected bottom of engine and it was coated with oil. The pcv valve failed and caused rear main seal to rupture and shoot oil (and possibly gas vapors) all over bottom of hot engine. Although nothing ignited in this case, began to question if some of the other fire incidents listed on NHTSA site were possibly caused by similar condition. Failure of approx. $40 part caused approx. $1700 in damage- all out of warranty. Warranty is for 5 years/60,000 miles. No maintenance data available to owner indicated that pcv valve should be checked as part of scheduled maintenance. Vw leadership declined to accept any responibility for situation.

2009 vw Passat 2. 0t. Oil leaking from rear main seal. Rear main seal failed at about 70,000 miles, not covered under warranty. First indication was smell of burning. Shortly before this failed, the pcv valve failed - also out of warranty. Warranty is for 5 years/60,000 miles.

In August of 2013, while backing out of a driveway, I experienced a total loss of braking. After examining the car, I discovered that the plenum that holds the battery and brake booster was nearly filled with rain water. It was necessary for me to remove one of the duck-billed drain plugs in the plenum as all were clogged with debris, preventing water from draining out. The flooded plenum appears to have resulted in water being drawn through the vacuum lines when attempting to brake. This, in turn, caused a significant amount of water to be drawn into the crankcase. Water was also drawn into the cylinders resulting in misfiring. After removing at least one drain plug in the plenum for proper drainage, and double flushing the contaminated oil in the crankcase, I experienced no further braking problems until freezing weather in November 2013. In November, while braking near the bottom of a hill, I again experienced a hard pedal with no depression and almost no braking ability, resulting in the car going into the intersection before fully stopping. The car was towed to the Volkswagen dealership for repair. Two weeks later, there was again the symptom of a hard pedal? with no depression and near loss of all braking. The car was again returned to the Volkswagen dealership for repair. This time, the vacuum booster, the vacuum pipes, and their related items were replaced. As noted in the dealership invoice, evidence of water was found in the replaced vacuum booster. The dealership acknowledged that the plenum had a significant high-water pollen line, indicating flooding of the plenum. It was believed by their service department staff that the brake failures in November and December 2013 were likely the result of residual water freezing in the vacuum booster, causing the booster to be inoperative. Also, the ignition coils were replaced. Updated 01/30/14 the consumer stated the insufficient fix during the 2008 campaign did not resolve the problem. It allowed for continued flooding of the plenum compartment and subsequent brake failures. Updated 02/19/14 updated 03/13/14 updated 05/12/14.

See all problems of the 2002 Volkswagen Passat 🔎.

The contact owns a 2001 Volkswagen Passat. The contact stated that the emissions warning indicator illuminated intermittently on the instrument panel. The contact approached a traffic stop and a strong odor of burning oil emitted from inside of the vehicle. The contact inspected the vehicle and noticed oil leaking onto the catalytic converter. The vehicle had not been repaired. The manufacturer was not notified of the problem. The approximate failure mileage was 154,000. Updated 04/30/lj the consumer stated the emission workshop light illuminated. The dealer had no answer, as to why the light was on. The consumer stated in during some research, he found the light was on due to an oil leak. Also, a plugged pcv system caused excessive internal engine pressure.

See all problems of the 2001 Volkswagen Passat 🔎.

I got 2006 vw Passat 2. 0t - 77,000miles. Last week, I got engin light came on during the drive and went to dealership and they checked computer system then fixed air filter housing. I paid $585. 00. I don't understand how it can be break, but I don't have choice. And next day on the driving it happen again and I went to dealership again. This time they told me pcv valve was not working so another fix cost $281. 00. Last spetember I did regular maintenance service and they told me everything good. But after every month it happened again and again, first problem was steering columns. . . . . . I paid $485. 00 second problem was battery. . . . . . . . I paid $130. 00 third problem was engin light came on I paid $585. 00 and this time another engin light came on $281. 00 within two day. Now I knew vw cars are pices of junks. It is really junks.

I have a 2006 vw Passat that had a crankcase breather valve foul up for no reason. The vehicle was maintained in accordance with the vw recommended maintenance schedule and this is documented, however, the vw service rep indicated this was a result of not properly maintaining the vehicle. Specifically he stated that this is what happens when the owner fails to change the engine oil. (note: vw recommends changing the oil every 10k miles and calls for the use of synthetic oil. Both recommendations were followed in this case). This incident occurred when the vehicle had approximately 48,000 miles on the vehicle. The vehicle was driven under "normal driving conditions"--primarily highway driving in a non snow, non desert environment. As a result of this defect, there was an increase in emissions. Also, the engine began to seize up while I was traveling on an interstate highway thus putting me and my family in danger.

I have had my 2001 vw Passat for 7 years now and have had it in the shop multiple issues including warped rotors (front and back), cracked chasse, electrical issues and various other problems. Before having this car, I had a Toyota for 8 years and in the 8 years I had the Toyota, I only had it in the shop for routine maintenance. This car is disappointing and everyone I talk to who has a similar model/year says the same thing. I think the 2001 vw Passat is a lemon.

The ignition coil continued to break which caused vehicle to lose power while driving. The dealer was notified. The left front headlight had burned out, and the left speaker had gone out. The ignition coil was replaced and the mechanic reprogrammed the ecu in order to correct the misfires.

I purchased a new 2000 Passat in Feb. Of 2000. On Nov. 5, 2001 the engine light came on, the dash displayed emission workshop. The sysmptoms were a jolting when placing the car into any gear and the car losing power for several seconds while driving. I took it in and found out the "engine control module" needed replacment & the "mass air flow sensor" needed to be replaced and it was fixed at no charge. Then, on Dec. 23, 2002 I had the same symptoms and took it in and had topay $161. 00 to replace the "vaccum line to manifold". Now yesterday April 28,2003 I had the same symptoms and found out the "mass air flow sensor" needs to be replaced for the seoncd time and the dealer will only pay 50% and they will stand behind their decision because they feel it's more then fair. The dealer has told me that it is very rare for this problem to happen. Well it has already happened 3 times in the 3 years I have owned it and they are unable to give me an answer to why this happens. I would like to know how may complaints you have received on case number:748685. I feel like I purchased a lemon and will be dealing with this same problem over and over. I will never purchase or recommend a Volkswagen to anyone.

See all problems of the 2000 Volkswagen Passat 🔎.