There are 3 stored owner reports matching the powertrain & transmission leading-label group for the 2018 Volkswagen Golf in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)Received a low coolant warning and then checked the coolant level. Coolant was low and was topped off. One week later the issue recurred as the coolant level and dropped below minimum levels again. Thermostat housing had a slow leak which was discovered by the dealer. This seems to be a flaw in the design of the thermostat housing as multiple owners are reporting the same issue with the same flaw in the thermostat housing.
Vehicle intermittently stalls when coming to a stop in traffic while in gear. Has occurred on multiple separate occasions, but cannot be easily re-produced. When vehicle stalls it can be difficult to restart while in traffic and occurs without warning creating safety hazard. Usually there are no codes stored by the computer when this occurs, but check engine light has been noticed. Vehicle has been brought to dealership 3 different times for same issue. Upon first visit starter was replaced. Upon 2nd visit an oxygen sensor was replaced. Upon 3rd visit no further action was taken and I was told by dealer vehicle tested normal with no further repairs being authorized.
COOLANT LEAK NOTICED UNDERNEAT THE ENGINE. IT RUN DOWN TO THE OIL PAN DRIPPING ON THE DRIVE WAY. TOOK THE CAR TO THE DEALERSHIP FOR DIAGNOSIS. THEY SAID LEAK IS COMING FROM THE THERMOSTAT HOUSING. MILEAGE IS NOW 73700. VW POWERTRAIN WARRANTY COVERS UP TO 72000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.