2015 Volkswagen Golf power train problems

“The contact owns a 2015 Volkswagen Golf. The contact stated that while driving at an undisclosed speed, the stick shift was inoperable. The vehicle was taken to the dealer where it was diagnosed with a failed rear axle and coil springs. The contact was informed that the rear axle and coil springs needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 50,000.”

“Over the last two months, I've had over 30 incidences where the car will either randomly shift extremely hard into a gear or will hesitate, stutter, lose power while accelerating. Some of the shifts have been so hard that they've thrown me forward. Some of the losses of power are extremely dangerous as I'm accelerating at highway speeds. I have a full log of at least 30 of these incidents (and detailed as best I could) and they are attached. I picked May 11th because that was the hardest shift/loss of power which caused me the greatest harm. I've been able to reproduce the errors in drive, sport, and Tiptronic mode. The errors occur in all gears, but are most common in 2nd and 3rd (although the higher gears are involved as well), which leads me to believe it's not the transmission, yet the mechatronics unit or something outside of the transmission and engine itself. The troubling issue here is that the car is recording absolutely zero fault codes for diagnosis; that is, the car is shifting, stuttering, hesitating randomly and erratically and no diagnostics are being provided to resolve the issue. Technicians are able to guess what the issue is, but cannot give…”

“Vehicle started to show intermittent coolant gauge fluctuation with simultaneous loss of cruise control function. The coolant gauge would show cold, then hot. After visiting a dealer, a coolant leak was identified from a crack in the Thermostat/Water Pump housing along with corrosion in the coolant bottle. In addition, the trunk latch failed, likely from a faulty windshield washer fluid valve leaking onto the electrical equipment. All parts were replaced. Within another 3 months the fuel pump failed and needed to be replaced. All parts were repaired at a Volkswagen Dealer. The overheating of the engine and failure of the fuel pump could have caused engine failure and the car to lose immediate power, causing a fire or crash. The faulty rear door latch could have caused the door to open while driving. All of these issues occurred without warning. Check engine light, EPC and disabled cruise control lights came on at the time of the problem. The vehicle also restricted the speed of the car and maximum RPMs allowed.”

“Driving 65 mph down highway vehicle shut off with no warning. Fault code shows defective injector #1. Vw tdi (post fix dieselgate). Dealer will not fix because I cleared the code to drive home. Irresponsible for vw to make a car that shuts down completely with no limp mode or short time to clear road.”

“Plastic Thermostat Housing Failure-- Cracks and leaking coolant. While getting an oil change done at a local Volkswagen dealership, the mechanic pointed out that there is a coolant leak and showed me where the leak is coming from (Thermostat housing/water pump) The coolant is slowly seep out of the crack on the underside of the thermostat housing, I have been adding coolant every other week. As the loss of coolant often trips the low coolant warning if the level isn't maintained. I feel like I'm not the only one with this issue, after reading online Volkswagen community. Many 2015-2020 GTI owners are also having the same problem. The car overheated couple times when stuck in New York traffic, I would like Volkswagen manufacture to address this issue and give all the GTI owners an explanation to why their part fails less than a few years of ownership.”

“I HAD MY THERMOSTAT HOUSING REPLACED TO DUE LEAKAGE. I WANTED TO FILE A COMPLAINT BECAUSE I BELIEVE THIS IS A REOCCURRING ISSUE THAT CAN LEAD TO ENGINE DAMAGE. THIS HAS HAPPENED GRADUALLY OVER TIME AND NOT DUE TO ANY INCIDENT WITH ANOTHER VEHICLE. THIS WAS DISCOVERED FROM A VW SERVICE WHEN I WAS AT APPROXIMATELY 57000 MILES.”