2018 Volkswagen Tiguan engine problems

“Within 6 months of purchasing car CPO from dealer, car went into limp mode. Was less than 35k miles, still having same issues at 85k miles. Took to dealer, they said nothing was wrong with car. Car began to have ECU light come on frequently in the middle of driving, took back to dealer. They replaced the fuel injector harness under warranty. Began to have issues with fuel injector misfires, car stalling and lagging at stop signs, sputtering when given gas. When driven for long periods at a time, would intermittently not start. Took back to dealer within a year, spent 1800 on maybe fixes, modules and carbon filter replacement. Same issues. Took back again, spent another 1800 replacing modules. Same issues repeated. Took to a european car specialist as we were frustrated with not getting the vehicle properly fixed for years at the dealer, had the engine walnut blasted for any carbon buildup and fuel injectors cleaned, they diagnosed and said the fuel rail harness is bad. Took back to Volkswagen, they re-evaluated and said there was no issue- my husband had to explain to them that there was a repair just done so code reading would not be sufficient and they needed…”

“We have to add 1-2 quarts of oil every 600 miles. Our check engine light came on 02/2026 for carbon buildup. We had it cleaned, had timing chain replaced, piston rings, oil valves, manifold. Cost us $5300. The car ran fine before the light came on and all of a sudden it started making grinding noises and idling rough. We change the oil every 3,000 miles and the car burns through oil constantly. Our car stalled 4 times on the highway since then almost causing wrecks, it runs rough and now our check engine light is back on for the same issue. It’s causing emotional and financial distress. There are multiple lawsuits pending for this but something needs done. This is exhausting.”

“This vehicle goes through oil at a rapid rate. I am adding oil to my car every week. I have had to add at least 2 quarts between oil changes for the duration of owning the vehicle.”

“The contact owns a 2018 Volkswagen Tiguan. The contact stated that while driving 70 MPH, there was an engine failure, and internal parts fell apart and started grinding into the oil pan. The message "LIMP Mode” and the vehicle failed to exceed 4,000 RPM. The vehicle was towed to the dealer. The dealer stated that the engine needed to be disassembled to be fully diagnosed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 37,000.”

“Our 2018 Volkswagen had a light that came on so we took to dealership. The part that needs replaced is the cylinder head assembly which will be over $6000 plus $3k for timing. It will take over 28 weeks to get the part. So the car is not able to be driven. After looking into this, this is a known issue and there is a class action lawsuits going on right now. There are 4,600 back order parts nationwide. This is a defective part that the company has not recalled. The dealership is aware also that this is a known issue. There was not an injury but they say it is unsafe to drive. Volkswagen has no resolution for problem for a known defect part.”

“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.”