Volkswagen Tiguan loss of power problems

Filed Oct 25, 2026 · Electrical, Engine · FL

In March 2026, my 2025 Volkswagen Tiguan SE experienced multiple unexpected malfunctions, including entering reduced-power (limp) mode twice within approximately two days. The vehicle displayed a “Drive System Error – Service Now” warning, along with multiple driver-assistance system errors involving rear traffic alert, blind spot monitoring, and Travel Assist. The vehicle also exhibited unusual engine revving while stopped. Most concerning was an incident during rush-hour traffic when my vehicle unexpectedly stalled in the middle of a busy road. The sudden loss of power created an immediate and dangerous situation, as surrounding drivers had to brake abruptly and maneuver around my stopped vehicle to avoid a collision. I was unable to move the vehicle out of traffic until I could get it restarted. This malfunction placed me and other motorists at significant risk of a serious accident. The vehicle’s unexpected loss of power in active traffic, combined with multiple electronic and driver-assistance system warnings, raised serious concerns about its safety and reliability. I brought the vehicle to an authorized Volkswagen dealership, where it remained for approximately 12–13 days. Volkswagen of America became involved because the dealership had difficulty diagnosing and resolving the problems. Multiple components were replaced, including fuel-system components, a front camera sensor, and the main OCU module. The repairs were performed under warranty. I am concerned that these unexpected malfunctions presented a significant safety hazard and could have resulted in a serious collision, particularly because the vehicle stalled without warning during heavy traffic.

Filed Oct 6, 2026 · Engine · RI

While driving my 2020 Volkswagen Tiguan (equipped with approximately 39,000 miles), the vehicle suffered a sudden and catastrophic total engine failure without prior warning, resulting in an immediate loss of power and propulsion while in motion. This sudden stall on an active roadway created a severe, immediate safety hazard and a high risk of a collision. The vehicle has been meticulously maintained with a complete and documented history of annual professional servicing. Prior to the failure, the engine repair light would frequently illuminate. Upon subsequent teardown and investigation of the failed engine, the authorized manufacturer dealership discovered heavy metal shavings in the engine oil, indicating severe and premature internal mechanical destruction of critical engine components. The vehicle has been diagnosed as requiring a complete engine replacement costing $9,000. A catastrophic mechanical failure of this nature at exceptionally low mileage, despite regular annual maintenance, points to a significant manufacturing or material defect.

Filed Sep 27, 2026 · Electrical, Engine · ME

This is an additional complaint concerning the same vehicle previously reported under ODI XXX. On XXX, while the vehicle was in Drive and moving at approximately 5 mph in [XXX], it unexpectedly shut off and shifted itself into Park. On XXX, while reversing, the vehicle suddenly lost all power and the engine shut off while the transmission was still in Reverse. The vehicle had to be shifted into Park before it would restart. Photographs were taken immediately after the XXX incident and are available. These repeated shutdowns created a serious risk of a crash or injury. The vehicle has an extensive repair history, including a transmission replacement, but continues to experience hard shifting, vibration at all speeds including during acceleration, intermittent check-engine lights, electrical problems, camera and infotainment failures, and remote-start failures. There was no immediate warning before either shutdown. Volkswagen has been notified. The vehicle is now included in Volkswagen safety recall 57KL/the federal safety agency 26V587 for Body Control Module software that may reset unexpectedly, switch off the ignition, cause an engine stall, and disable controls, warning lights, exterior lighting, or the rearview camera. The recall remains incomplete. The vehicle is available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 3, 2026 · Engine, Fuel system · IN

I am filing a safety complaint regarding my 2023 Volkswagen Tiguan SE R-Line with approximately 54,000 miles. The vehicle experienced a significant engine-related failure involving the oil separator/PCV system. Volkswagen diagnosed a failed oil separator/breather that caused excessive crankcase pressure, resulting in substantial oil expulsion and damage/leaks involving the plastic/composite oil pan and timing-chain cover. Volkswagen also identified oil contamination around engine sensors and a P0341 camshaft-position fault. The vehicle has previously experienced EPC/check-engine warnings and entered limp mode, creating concern about potential loss of power while driving. The dealer’s repair required replacement of the oil separator/PCV system, oil pan, timing-chain cover and associated gaskets, along with cleaning oil from the engine compartment and sensors. The repair estimate was approximately $2,490, later reduced to approximately $2,300. Volkswagen declined my request for goodwill assistance. I am concerned that a failure of the oil separator/PCV system can create excessive crankcase pressure and cause oil to be expelled from the engine, damage other engine components, contaminate sensors, trigger fault codes, and potentially result in reduced engine power or limp mode. Sudden oil loss or loss of engine power can create a serious safety hazard, particularly at highway speeds or in traffic. This vehicle has also experienced recurring alignment problems, requiring three alignments in approximately six months, raising additional concerns about the vehicle’s overall reliability and safety. I request that the federal safety agency investigate whether oil-separator/PCV failures and their resulting oil loss, component damage, sensor faults, and potential loss of power represent a broader safety defect in 2023 Volkswagen Tiguan vehicles.

Filed Aug 20, 2026 · Engine · WA

Vehicle abruptly lost power on the highway and limited itself to 3000 RPM. PCV valve failed and oil pan cracked at only 45k vehicle miles.

Filed Aug 18, 2026 · Engine, Transmission · NV

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)

Filed Aug 14, 2026 · Acceleration · GA

I am reporting a safety-related electrical defect on my 2019 Tiguan that has been intermittently occurring since March 2026. This typically has happened during the hotter parts of the day when the tempreature in in the 90's. While driving, I get two different warnings that displays; "Check starter system" followed by "ignition-system-shut down". Within a few minutes, the engine continues running but the instrument cluster, HVAC and turn signals lose power. Other electrical systems also shut down like, the radio, navigation, head lamps, and side view mirror adjustment. This creates a serious safety hazard because I lose turn-signal and vehicle-information functions while the vehicle is moving." I have found multiple complaints involving 2019 Tiguans with this exact failure mode, including complaints specifically connecting it to Volkswagen recall 28H7 / the federal safety agency 23V‑604 involving the ignition switch and polyfuse. Volkwagen has not aknowledge, reproduced, nor confirmed this issue. I belive that ithe issue is related to the same problem as Volkswagen's 28H7 / the federal safety agency 23V‑604 ignition-switch recall, which currently applies to certain Jettas. That complaint describes the same combination of engine continuing to run while A/C, instrument cluster, headlights and turn signals lose power. I believe that 28H7 should be expanded to the 2019 Tiguan.

Filed Jul 29, 2026 · Fuel system · FL

Dash light came. I took VW to Dothan ,Al Dealer and service stated it was fuel sensor faulty and had to order one. Meanwhile I was driving 70 mph in heavy traffic and vehicle lost power having barely avoided sccident. Took vehicle in and had sensor replaced and when I went back to pick up VW it was dead and had to be put back in . This was 3 rd trip to dealer in 2 weeks. garage. No loaner was offered approved . This vehicle is dangerous to drive

Filed Jul 27, 2026 · Engine · 67,000 miles · FL

The contact owns a 2022 Volkswagen Tiguan. The contact stated that while stopped at a traffic light on an extremely hot day, the message that the starter was hot was displayed and the vehicle shut off unexpectedly. On another occasion, while making a turn, the vehicle stalled and lost power. The contact was able to safely coast over to the emergency lane. After waiting for the engine to cool down, the vehicle was restarted. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 67,000.

Filed Jul 5, 2026 · Engine, Fuel system · MD

I'm filing an urgent safety complaint regarding a series of severe defects in my 2026 Volkswagen Tiguan (VIN: [XXX]) that pose immediate, life-threatening hazards. On XXX, I took delivery of the vehicle, which was refueled by the dealership. By XXX, with temperatures soaring to 104°F, I encountered three critical issues: 1. **Engine Stall During Low-Speed Turn**: While turning at 2 MPH, the engine shut off without warning, losing power steering and brakes, and displaying a message to "manually restart the engine." 2. **Engine Stall While Reversing**: The engine stalled again while reversing into a parking spot, triggering the same emergency warning. 3. **Structural Window Seal Failure**: At 55 MPH, the driver-side window seal tore away, becoming a projectile that struck the passenger-side window, creating a severe distraction and road hazard. Despite reporting the engine stalling issues to the dealership, the service manager didn’t open a formal Repair Order, citing the stalling as "intermittent." On July 5, while attempting to refuel with half a tank, gasoline violently sprayed from the rear undercarriage, indicating a catastrophic failure of the fuel tank venting system. These incidents within 72 hours of delivery highlight systemic manufacturing and quality control failures. I have had the car towed back to the dealership via flatbed tow and the Volkswagen roadside assistance representative assisted with this transaction. I urge the federal safety agency to investigate the fuel tank venting mechanisms, engine management software, and exterior seals of the 2026 Volkswagen Tiguan. Immediate action is necessary to quarantine this VIN ([XXX]) and assess potential safety recalls or stop-sales. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)