2022 Volkswagen Tiguan

2022 VW Tiguan SE had PCV (positive crankshaft ventilation) also known as air-oil separator failed just outside of warranty creating a pressure cooker like effect in the engine which caused several seals and hoses, (such as the upper/front timing cover gaskets, rear main seal, and valve stem seals) to fail. The oil pan gasket was also destroyed. Although I was fortunate enough to be able to drive from my house around the corner to my local mechanic, this could have become a dangerous scenario considering most of my driving is done on busy freeways -- this could have caused severe oil slicking, sudden loss of power, and/or total engine failure. All of which could have resulted in a fatal, multi-vehicle accident. This appears to be a relatively common incident involving this particular year and model according to a New Jersey federal case ([XXX] et al v. Volkswagen [XXX] et al.), and several other complaints found. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle intermittently fails to accelerate normally from a stop, especially in hot weather and when the A/C is running. When pressing the accelerator, the vehicle can hesitate for an extended period before moving. In a recent incident recorded on video (reference attachment), I pressed the accelerator and the vehicle failed to respond normally for more than 10 seconds, requiring me to pull over. This creates a serious safety risk when entering intersections, making U-turns, crossing traffic, or pulling into traffic, because the vehicle does not respond when acceleration is needed. The issue is intermittent and more frequent and severe during summer temperatures, when the AC is running continuously. The concern has been reported to the Volkswagen dealer multiple times. Dealer repair attempts were made in 2025, but the issue still exists. An independent mechanic also inspected/tested the vehicle and confirmed there is an issue, but advised that it likely requires Volkswagen-specific diagnosis, software, adaptation, or calibration. No consistent warning light appears before the hesitation occurs. The vehicle is available for inspection upon request. I have video evidence showing the delayed acceleration condition.

I am submitting this complaint regarding my Volkswagen vehicle because it has experienced two recurring defects during the warranty period that remain unresolved despite repeated repair attempts by the dealership. Issue 1 – Excessive Oil Consumption The vehicle has had a persistent excessive oil consumption problem since the warranty period. The dealership has attempted to repair this defect six times, including replacing an engine valve, but the issue continues. The vehicle still consumes excessive oil, requiring frequent monitoring and topping off. This creates a serious safety concern because low engine oil can result in engine damage, sudden loss of engine power, engine seizure, or an increased risk of fire while driving. Issue 2 – Electrical System Failure The vehicle has also experienced ongoing electrical problems involving the keyless entry system, repeated 12V Battery Low warnings, inoperative interior lights, and loss of connectivity with the Volkswagen mobile app. These problems have persisted despite nine repair attempts by the dealership and remain unresolved. The vehicle has spent a significant amount of time at the dealership throughout 2025 and 2026 for these recurring defects. The repeated electrical failures raise significant safety concerns. The keyless entry system can fail to unlock or recognize the key, the low 12V battery warnings indicate an unresolved electrical issue, and the loss of interior lighting reduces visibility inside the vehicle. The repeated failures also raise concerns about the reliability of other critical electrical systems and the possibility of the vehicle failing to start or operating unpredictably. Despite six repair attempts for excessive oil consumption and nine for electrical defects, Volkswagen has been unable to permanently fix these issues. I request NHTSA investigate whether these recurring failures indicate a broader safety defect requiring corrective action. Currently car is back to dealership for repair again

Purchased new; problems began early in ownership and have recurred despite multiple dealer visits. At ~75,995 miles in July 2025, the vehicle developed a significant engine oil leak. Multiple inspections have found the engine oil level low due to leaks from cracks, and the dealer also verified excessive crankcase pressure from a faulty PCV system that forced oil past sealing surfaces. Parts replaced included the PCV/separator, upper timing cover, a related pipe, and the oil filler funnel; DTCs were cleared and the vehicle was returned as “operating to specifications.” Despite these repairs, the vehicle has an ongoing pattern of engine problems, including warning lights and loss of power/limp mode while driving. This creates a safety risk due to sudden power reduction and the possibility of engine damage from oil starvation and continued leakage. I have repair records documenting the July 2025 diagnosis and parts replaced, prior visits showing repeat engine/drivability issues, and notes reflecting low oil observed on multiple inspections. Volkswagen denied assistance and directed me to BBB AUTO LINE; I am refiling with BBB and reporting this safety concern to NHTSA. No crash or fire; safety risk is loss of power and oil leakage while in operation.

My Volkswagen Tiguan suddenly and without warning blew a large amount of smoke out of the exhaust along with oil while driving at highway speeds - causing the cars behind me to lose visibility and possibly be covered with oil further reducing their visibility due to the VW manufacturers faulty crankcase breather/pcv valve. After this happened the car dash lit up with warnings and went into "limp mode" where I was not able to exceed 2500 rpm which is very dangerous when on the highway - luckily for my safety at this point I was on a side road. When I checked the engine I found no oil was left in it, it had been sprayed all underneath and up the back, which reduced visibility in the window. I was responsible for towing it to the dealer and was given no loaner despite being under warranty. Leaving myself and children without a vehicle. The dealer confirmed that my VW Tiguan had a faulty crankcase breather which caused over pressurization and pushed up the valve seals and cracked the oil pan. They only replaced those things and not the fouled spark plugs or oil filter from the crankcase breather failure which can cause more engine damage and dirty emissions.

The car vibrates excessively when in drive or reverse and the brake is being held. Vibrations stop if car is put in neutral. Car also hesitates when driving. And is a major safety issue when driving. The vibration is also in my opinion a safety concern because it’s causing excessive wear and tear on other parts of the car. The dealership acknowledged that there’s excessive play or wear in the dogbone mount but refused to replace it because I was told that part should be bad because there’s less then 30k miles in the car. But I am still having the same problem with the vehicle and have had it in the dealership service department where they will keep the vehicle for a few days and then tell me they can’t find anything. The most recent visit to the dealership they never even test drove the vehicle and I even had the service rep Sit in the loaner and then sit in my vehicle to feel the difference between the two which is extremely obvious and he refuses to acknowledge it.

The car stalls and lags out when accelerating and appears to slip gears (daily). The dealership stated this is normal for the car to do, but it’s very scary and nearly caused me to be rear ended. The car turns off at a stop light (unexpected ) and has to be restarted. I am experiencing jerking and sputtering of the vehicle when at a complete stop. First the car indicates the start/stop function is deactivated, then the car produces a message stating the engine speed max is 2500 rpm. Then the EPC light comes on and/or the check engine light. I initially took my car in to the dealership for maintenance (standard) in October. I have since returned 2 more times due to the same issue. Upon starting the car tokay, the car started jerking and this time the check engine light came on and continued to blink. The car started rattling loudly and I turned off the engine for about 10 minutes, called the dealership and they advised me to pay to have it towed if the issue persists. This will be the 4th time in 2 months. Each time the diagnostic stated the issue caused by “sensors” and the warranty allowed this to be fixed at no cost. I am also expecting unexpected blackouts of the infotainment system which prevent me from using the rearview camera for when in reverse.

My vehicle has been consuming oil at a rate of approximately 1 quart every 1,500 miles. The VW dealership I took my vehicle into reported that VW considers this “normal”. After arguing that any vehicle that will burn its entire oil reservoir between oil changes is not normal, they agreed to perform an oil consumption test which is currently underway.

The PVC valve failed on my two-year-old Volkswagen Tiguan at 60,000 miles. As a result, the upper timing gasket was blown, the oil pan went bad, along with several other issues relating to gaskets, seals and sensors, causing an oil leak. This problem was confirmed by my local Volkswagen dealership, and is costing me over $2,000 out-of-pocket. The check engine light was extremely inconsistent - coming on and then going off for days at a time. This is a safety concern. Unfortunately, through research, I have found that many other Tiguan owners are experiencing the same problems, but it does not seem Volkswagen is willing to issue a recall.