| Issue ID | 1606523 |
| Internal NHTSA # | 11265655 |
| Manufacurer | Volkswagen Group of America, Inc. |
| Brand | VOLKSWAGEN |
| Model | GTI |
| Model Year | 2015 |
| File date | 28/08/19 |
| Component | ENGINE |
| Product type code | VEHICLE |
| Description of the problem | 2 years after purchasing my car brand new the coolant level was low. After calling the dealership they instructed me to top off the reservoir with distilled water. In february of 2019 i had the car in for general service including a coolant flush at a private, licensed, vw mechanic. He discovered my waterpump/thermostat housing was leaking and likely had been for a long time. He replaced the assembly and filled the car with new coolant. In august of 2019 i discovered once again my coolant level was low. Upon inspecting underneath my car i found dried coolant on my oil pan. My mechanic is again telling me the waterpump/thermostat housing is leaking and will need to be replaced. Nothing has been done to the cars cooling system and driving habits have not changed over the lifetime of this car. The mechanic pointed to a poorly designed seal on the thermostat housing where the leak occured. The replacement housing appeared similar in design. This is a widely reported issue, a slow coolant leak, on 2015+ vw golfs, gtis, and rs and in extreme cases can lead to an overheated and ruined engine. The first incident occurred at roughly 60,000 miles, outside of the factory warranty. The 2nd incident occurred at roughly 88,000 miles. |
| Vehicle Mileage at Failure | 88000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | WALLINGFORD, CT |
| VIN pattern | 3VWYT7AU8FMXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 45 |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |