2010 Volkswagen Passat engine problems

“I purchased a used vehicle but have found out the oxygen sensor is feeding false error codes to the main OBC causing leaks into driver compartment causing engine to stall while auto in motion and most importantly causing steering wheel to lock, have spoken with VWoA but they have no direct influence with VW or dealerships even if a warranty issue because all parties are independent contractors and all they are able to do is try and help. My name has not been transferred to registration because of smog requirements so you may call me [XXX] my telephone number is [XXX] my case# with VWoA is [XXX], I myself have learned to deal with defects but should this matter be more widespread which I cannot find out because the last case regarding the sensors was sealed in an agreement made by the California ARB, EPA and VW and Audi through a settlement signed in December 2021. Once again my hands are tied from taking much more action but I believe your department whether is able to enforce this matter or not should at least investigate and issue warnings to advise people of what can happen so if they can even at own cost seek appropriate repairs before more damages accrued.…”

“The contact owns a 2010 Volkswagen Passat. The contact stated while driving at various speeds, there was a strong fuel odor inside and outside the vehicle. The contact stated that the failure persisted while the vehicle was parked and turned off. The check engine warning light was illuminated. The contact stated that the strong fuel odor had caused her to have headaches while driving. The vehicle was taken to an independent mechanic, where it was diagnosed that the fuel pump module had failed, causing the fuel pump to leak. Additionally, the contact stated that the vehicle had failed to start and was undrivable. The dealer was notified of the failure and advised the contact to bring the vehicle to their location for the repairs. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they could not assist because NHTSA Campaign Number: 17V509000 (Fuel System, Gasoline) had already been completed on the vehicle. The failure mileage was approximately 148,000.”

“Drove the car to and from work that day with no problems. Also, went back to work a 2nd side job that evening with no issues. Got home, shut the car off and when my wife and I went out to go to work the next morning at 5 a.m., the car wouldn't start at all. Wouldn't even click. Did a lot of research because I had the starter replaced about 2 weeks before and knew it couldn't be the starter and also had bought a new battery when I had the starter replaced as well, so knew it wouldn't be the battery. After a lot, I mean a lot of research online, finally came to the decision it was the timing chain tensioner was faulty. When I went to replace the tensioner for the timing chain, I took my camera and put it in the cylinder heads and found out that there was 2 broken valves in the number 3 piston. One was broken and sideways in the piston and the other just broken. I'm not sure whether a rod has gone through the bottom of the head or not, couldn't get my camera to go that far down. So now I have no vehicle what-so-ever to drive back and forth to work. My wife had to resign from her job because she had no way to get there everyday and I have to pay someone gas money…”

“I got all types of misfires and fuel pump and electrical problems the car almost has me in car wrecks every time I drive it the speed thermometer jumps up and down causing me to have no push in the gas I have to turn the car on and off on the highway”

“faulty timing chain tensioner caused catastrophic engine failure. resulting in ~$4000.00 repair cost. i have read about alot of other Volkswagens having this same issue. VW has redesigned this part several times, i did not recive a TSB stating there was an issue with an internal component of my engine even though VW knows this issue will result in engine failure.”

“108K MILES. GOT OFF OF WORK AND I WENT TO START THE VEHICLE. I STARTED THE VEHICLE THE BATTERY LIGHT STARTED TO FLASH AND THE CHECK ENGINE LIGHT CAME ON AND STARTED FLASHING I JUST DID A QUICK LOOP AND PUT IT RIGHT BACK INTO THE PARKING SPOT THAT I WAS IN. I TOOK IT INTO A SHOP THEY FOUND THAT THE STARTER WAS GETTING WAY TOO HOT. THEY TOOK THE STARTER OUT AND PUT IN A NEW ONE AND WHEN THEY WENT TO START THE VEHICLE THE ENGINE SEIZED”