2021 Volkswagen Tiguan fuel system problems

Filed Oct 2, 2026 · Engine, Fuel system · TX

The high pressure fuel pump has failed within 40,000 miles and now again at 110,000 miles. It causes the vehicle to randomly turn in drive and while idle. It has had oil consumption issues and oil leak issues that constantly occur. The dealer has replaced the high pressure fuel pump under warranty 40,000 miles and has now detected it needs to be replaced again at 110,000 miles. I paid for oil leak repair which was over 5,000 dollars and now I have another oil leak issues with the oil separator.

Filed Aug 27, 2026 · Engine, Fuel system · FL

Taking left turns is dangerous. My turn very slowly and Hard press on pedal to turn. Oil consumption is insane. Started at 38k miles, manufacture warranty ended after 4 years. I’m under 52k miles now and have to fill oil about every 1k miles. I’ve had 4 oil changes this year alone. I’m regular about Maintenence. Last oil change was 08/03/26 check oil light came on 8/15 had to add 3.5 quarts 8/26/26 Will keep track of each time I need to add oil and update here. This has been an issue for many Tiguan owners where is the recall???

Filed Dec 22, 2025 · Fuel system · MO

My fuel system level indicator does not work properly when the tank is below 1/2 full, and the check engine light comes on. It does not correctly deplete, instead leaving me with no gas when it shows it still has gas available. This has left me stranded in various locations as my car runs out of gas, but doesn't show me that until it is completely empty. Most recently, it was on a very busy road in the middle of traffic. The gas gauge went from 1/2 full to empty while I was driving. Upon taking it to the dealer, they said to replace the 1 sensor, which is a very small, simple piece, they have to replace the entire fuel system, which is over $5000 in repairs. My car is only 4 years old and only out of warranty by 6 months. Further research shows this is a common issue with the make and model of my car. Many seem to happen under warranty, but with the age my car is now, many of these warranties will expire, leaving owners to have to pay to fix this outrageous, costly repair.

Filed Jul 28, 2025 · Fuel system · OK

I purchased the Tiguan just shy of 2 years ago. Since 12/17/24 I have spent over $2,000.00 in that short of time because one incident the oil leaked out in a matter of a day. The second incident, while traveling from St. Louis to Tulsa, the oil light came on every 80 miles because the oil had spewed out. I had to replace the oil about 5 times that day. The third incident came 1,500 miles later. I came out of a restaurant in Claremore, OK and saw every drop of oil had spilled out into the parking lot. Each time I took the car to Autohaus. They only work on Volkswagens. He has been doing so since he was 14. If he can't fix it, no one can. I can't afford to keep dishing out $700 every 2,000 miles.

Filed Jul 1, 2025 · Engine, Fuel system · SC

At about 60,000 miles a VW dealer told me it was normal for VWs to use oil. Now at 80,000 I have a $2,000+ bill b/c the PCV is faulty and the timing cover has failed. I did NOT get a low dngine oil warning, but mechanic says panic wait it was low ( oil change 4,000 miles ago). This could have led to a seized engine on the interstate. I am upset to learn this is a common problem with this vehicle. It is an expensive repair. From other posters I fear this is not the end of the problem. VW should recall this part .

Filed Jun 15, 2025 · Fuel system · NJ

The oil separator in this vehicle failed resulting in other additional damages at 46,000 miles. I was not given the oil separator, upper timing cover, or lower oil pan for inspection. All maintenance in this vehicle was done timely and only touched by the VW dealer. The manufacturer warranty ended 17 days before the component failure. VW agreed to pay half for the repairs that were quoted at 1600 dollars because the warranty expired by time so closely and was under on miles. The service advisor at the dealer reached out to VW about this on his own accord before updating me on the issue because he told me that this exact component has been happening very frequently with this model/year and didn’t think this should be happening at such low mileage. This component failure rapidly causes other serious damage resulting in very high repair bills on the vehicle. The check engine light came on over the weekend (6/7) and the car was brought to the dealer Tuesday (6/10) and was driven about 75 miles between the light coming on and the car being dropped at the dealer. The diagnosis quoting email from the dealer: “the vehicles oil separator failed and caused excess crankcase pressure to be put on the plastic components of the engine, mainly the upper timing cover and lower oil pan. That pressure causes the components to crack and leak oil, which is what happened” this resulted in a quoted 1600 dollars in repair. This is very concerning. I believe that an oil separator going bad at 46,000 miles in a perfectly maintained car as per recommendations of the dealer is unacceptable. I am reporting this in hopes that a recall from the manufacturer will be forced as this is unacceptable at such low mileage and the part needs to be replaced by another manufacturer with better quality.

Filed Jun 2, 2025 · Electrical, Fuel system · FL

Fuel gauge showed close to empty and we filled up the tank. The fuel gauge is still reading empty and not properly reporting the gas level in the tank.

Filed Feb 24, 2025 · Fuel system · IL

My car constantly gets a P24D6 error code which is a tank ventilation pressure sensor 2 issue. It prevents the car from auto starting using the remote or the VW app.

Filed Feb 5, 2025 · Fuel system · OH

Fuel sensor failure caused the fuel gage on the dashboard to incorrectly indicate the amount of fuel in the tank. The vehicle had 56K miles and the entire gas tank had to be replace since the sensor is built into the fuel tank. Volkswagon would not warranty the repair. This is a safety issue because not knowing how much fuel is in the tank could leave the driver stranded in bad weather or in an unsafe place.

Filed Dec 3, 2024 · Electrical, Engine · VT

11/19/2024 Check engine light came on while I was driving. Got home, checked oil and it was down about a quart. Oil had just been changed on 10/17/2024. Only approximately 1800 miles put on vehicle since last oil change. Vehicle was at approximately 62,000 miles. Also tire pressure light always on. Scheduled appt with VW dealer. Dealer invoice states "P04F000 Checked Purge valve and found oil in line, due to Defective crankcase breather, and causing an oil leak, replaced crankcase breather, replaced the EVAP purge valve and replace the upper timing cover gaskets. cleared oil off engine and test drove". the engine could have blown while I was driving this, I had no previous warning signs and since the dealer says the Defective crankcase breather, thinking they should be fixing this issue and not charging the customer. Total cost of repair $960.02.