Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Volkswagen Tiguan owners, lightly cleaned up (personal details are redacted by NHTSA).
At 48k miles, fuel efficiency began to significantly drop. At next start up, engine would not turn over and EPC light came on. I waited 30 minutes, unlocked the steering wheel and was able to start the vehicle and EPC light turned off. I took it into Volkswagen dealership to have it looked over and they could not duplicate the issue nor find cause for lower fuel efficiency. The issue with fuel persisted intermittently. Then at 57k, while driving long distance, I noticed what seemed like misfiring when accelerating above 65 mph. There were no noises, no warning lights, and fuel efficiency seemed about the same. I continued driving and about 6 hours into my drive, EPC light came on, RPM's shot up to 4,000 and car began violently shaking while losing significant power and dropped down to 30 mph. I was in the left lane when it occurred and had to quickly move over to the right lane. …
This vehicle has significant, but intermittent issues with acceleration; it seems mostly when the AC is on or it is cold out (below 40). Vehicle will hesitate, or entirely not respond, to the gas pedal. When this occurs, acceleration is even less predictable (and slower) than a diesel truck. When it does not occur, the acceleration was zippy and fast. Unfortunately, this erratic lag is extremely dangerous - especially when attempting to merge on the highway. I can step on the gas repeatedly and nothing happens, but then the car will accelerate in a manner which feels out of control. Driving in "sport" mode seems to prevent this, so I am inclined to think there is an issue with how the vehicle has been programmed - versus a mechanical issue with the engine. I know some "Eco" modes tend to make cars less responsive to acceleration (in order to save fuel) but this is extreme.
I bought my 2018 Tiguan in 2021 with 20k miles on it from York Volkswagen in York, PA. I'm at 83k miles. My vehicle sporadically stops accelerating, sputters and goes into "limp" mode. ECP light comes on, engine error warning MAX RPM. Car stalls in heavy commuter highway traffic, with no shoulder to safely pull off the highway, which is terrifying and deadly. Also stalls/ hesitates in slower city traffic. Dealer initially suggested an early oil change ($130.00) thinking this might resolve this issue. THIS IS A WELL KNOWN AND WELL DOCUMENTED, EXTREMELY DANGEROUS ISSUE. I wonder how many have been killed that we don't know about with the unexpected decelerating and unable to accelerate in speeding traffic. The dealer does not acknowledge this known issue. This has been happening for months. I glad I did some research.
2018 VW Tiguan, 65,109 miles. Unable to add fuel to the vehicle. The filler neck would back up with fuel and even on the lowest setting, the pump would click off on back pressure. Fuel would often splash out. Gas smell or odor in and around the car. When parked in the garage, the fuel odor was strong. No warning lights or check engine lights were on. Dealer replaced B Evapcanist, A C LDPump, AF Valve. Dealer charged full cost for repairs. After multiple calls to VW consumers assistance, the repair charge was covered under warranty and refunded my payment. VW should cover or repair faulty emissions controls that cause serious safety issues with gas vapors inside or around the vehicle, and/or contribute to inability to properly and safely fill the vehicle with fuel.
The car went into limp mode on an Interstate Highway. It was taken to a VW dealer in Mooresville, NC after two other private garages could not diagnose the problem. Their is a current Factory Warranty Extension for 2017, 2018, 2019 VW Tiguan's. The dealer in Mooresville kept the car for two weeks. Drove it for over 100 miles. They claim They can see the code in the computer but it is not active so VW will not pay for the known problem. I feel this is a safety issue as the car will not only possibly go into limp mode at any time but when stepping on the accelerator when not in limp mode the exhibits another known fault. The engine initially sputters as if it is going to stall then accelerates very quickly.
First purchased this car from a dealership in 2023, used at128,051 miles. Did not have any problems with it in the first year I would say. Then suddenly while driving down the road the epc light would come on limiting my speed to 4,000 rpm. It would come on and off also causing my check engine light to come on and off. It has now become more frequent, the epc and check engine lights will come on and off creating a major hazard while driving. Got it scanned while the check engine light was on and it ran a code for a cylinder 4 engine misfire from my fuel injector wiring rail harness. It looks to be a common problem with this model but it's showing my vin is not attached to a recall.
Like many other complaints, for the second time now an error appeared having to do with 40000 RPM. Acceleration is impossible and the car shakes. We had this replaced for the first time in 2019 on our model year 2018 Tiguan and now need it replaced again. The car is undriveable, unsafe for its passengers and others on the roadway when it suddenly decelerates and won't resume speed. Both times this happened on the highway. There was no advance warning lamp or messages prior to the failure.
I was on the freeway and my vehicle stopped accelerating and went into limp mode (almost died). I took it to the dealer and they said the codes for Fuel Injector Harness were on and so i need a new fuel injector harness. VW released an extended warranty for that but the dealer is saying the warranty is vin specific and my vehicle does not qualify. How can it not qualify if its the exact problem listed on the extended warranty? Number: VWP-23-03 (number for the warranty).
Like many other people who have complained, the same EPC engine light turning on after the engine stalls while driving. This has happened multiple times while driving on the highway while going 65mph+. The max speed 4000 rpm message comes on the dashboard. The car does not accelerate and pulling over is necessary in order to shut off the car and restart the engine. This is incredibly dangerous and the car's speed cannot be controlled.
2018 VW Tiguan. The fuel injector harness failed. There is a NHTSA letter stating 2018-2019 Tiguans had this issue and there's an extended warranty up to 120,000 miles. My Tiguan is at 91,000 miles, but VW is saying the warranty isn't assigned to my VIN. So there's a warranty for this exact issue and year, but my vehicle isn't covered. This warranty obviously needs to be extended by build date as it's a pretty costly repair.
Fuel System complaints in other Tiguan years
Frequently asked questions
How common are fuel system problems on the 2018 Volkswagen Tiguan?
NHTSA has 42 complaints about the fuel & propulsion system of the 2018 Volkswagen Tiguan, 14% of the model year's 292 complaints.
Is there a recall for 2018 Volkswagen Tiguan fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2018 Volkswagen Tiguan, though it has 14 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2018 Volkswagen Tiguan fuel system problems start?
Half of the complaints with a recorded mileage happened before about 9,000 miles, and 89% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.