2018 Volkswagen Atlas: misfire or rough idle

Filed May 31, 2024 · Engine, Fuel system · TX

Our 2018 V6 SEL Volkswagen Atlas is the recipient of a defective fuel injection system. Through discussion with VW service and maintenance staff, as well as research in online VW specific forums, there is defective fuel injectors found in various VW Atlas year and differing engine vehicles. Our particular vehicle had a malfunctioning, defective fuel injector (fuel injector for Cylinder 6) which resulted in massive carbon build up. There is no real detection system for a faulty, leaky fuel injector according to VW service. The carbon build up began with misfiring check engine and ECP error codes. Upon taking it to the dealer, we were made aware that the carbon build up also resulted in mechanical failure of components within Cylinder 6. This would affect drivability of the vehicle while on the road, resulting in severe power or ability to drive loss. Other additional factors aside from the faulty fuel injection system, is the valve gasket was also leaking oil through to spark plugs 2-4, which could result in vehicle fire. We are not sure if the faulty gasket is a result of the faulty fuel injector system. The 2018 VW Atlas was a first year model release, and would not be surprised if significant design flaws and defects are a risk with this vehicle.

Filed Nov 30, 2023 · Engine, Fuel system · CA

2018 Atlas SEL Premium 3.6L V6. Currently at VW dealership for warranty work. Vehicle has had coolant leaks in the past where dealer replaced water pump. Atlas in for the third time for misfiring in cylinder 6 and other misfiring engine codes. They found issues with the head cylinder gasket and will be replacing the head gasket. There are blogs about this issue throughout the internet.

Filed Nov 28, 2023 · Electrical, Engine · CA

2018 atlas 3.6 sel premium 4 motion. 3rd time in for service for fuel injector MIL code and misfiring with no resolve. Computer was reprogrammed from VW and compression test and replacement of injectors. Mil code turned on again for misfiring. Vehicle will loose full driving power and only drive at lower speeds without accepting the overdrive when depressing pedal.

Filed Oct 5, 2022 · Engine · 41,000 miles · MD

The contact owns a 2018 Volkswagen Atlas. The contact stated that after turning the ignition to the off position, the engine remained running but then turned off after a short while. The check engine and several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic who diagnosed that the engine had misfired and the ABS was faulty. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 41,000.

Filed May 29, 2019 · Fuel system, Steering · 9,900 miles · SC

Check engine light came on before 3,000 miles. Cylinder 2 misfire. Dealership fixed it on the 3rd try after getting vw involved. It was a faulty gas tank, leaking fuel into the lines. They replaced the tank and the charcoal canister. Lane assist feature severely malfunctions since day 1 of owning this car. Nearly every time I drive it, the vehicle steers itself into medians, into curves or intersections, into oncoming traffic, always while I'm actively driving straight. I contacted vw; they recommended having the system inspected. Dealership could find no problems with it, stating it was just a characteristic of the car. I will not just turn that feature off when I'm paying for it. I asked vw to buy the vehicle back, as it has increasingly become more dangerous for myself and my children. They denied my request. I have contacted the better business bureau in hopes of getting a more sensible outcome, but vw has only offered to settle my concerns for $2,500, which is not acceptable. This is an accident waiting to happen.