Four problems related to coolant leaking have been reported for the 2016 Volkswagen GTI. The most recently reported issues are listed below.
Engine thermostat and pump failure with gradual coolant leak. Coolant required refilling multiple times within 45,000 miles, sometimes coolant getting dangerously low without warning until car is on interstate. Thermostat/pump has also begun overcooling engine, not allowing it to get up to operating temp when on interstate and shutting out usage of cruise control. This is a well known and documented issue with mk7 Gti.
Thermostat housing seal failure has led to coolant leak. Discovered by technician during unrelated maintenance. Car has 76,000 miles.
Thermostat housing leaking coolant major amounts of coolant over the course of 5k miles, much more coolant than should be considered normal. Could lead to engine failure and/or stalling while driving.
Waterpump had to be replaced at 49,000 miles was leaking coolant. This is a widespread issue with the ea888 engine and needs either a recall or warranties extended.
| Water Pump problems | |
| Engine And Engine Cooling problems | |
| Coolant Leaking problems | |
| Car Stall problems | |
| Engine Failure problems |