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Engine coolingPart report

2021 Volkswagen Passat Engine cooling Problems

Complaints
1about this part
Share
6%of 18 total for the year
Median mileage
37,995miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2021 Volkswagen Passat, 6% of the 18 complaints for this model year. Where a mileage was given, the median is 37,995 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2021 Volkswagen Passat. The contact stated that while stopped at a red traffic light, the engine stalled. The low oil pressure and the battery warning lights were illuminated. The contact was able to restart the vehicle. The vehicle was taken to a local independent mechanic, where it was diagnosed that the piston ring and engine had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 37,995.”

NHTSA complaint #11678501, filed 2025-08, 37,995 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202116%
202016%
201622%
201521%
201441%
201351%
201241%
200943%
200895%
20073212%
20066611%
20055034%
20045921%
200313121%
200213521%
20019221%
20009419%
19998613%
19983912%
1997719%
1996513%
19951920%
1994936%
19931826%
19921744%
1991625%
19901235%

Other parts of the 2021 Volkswagen Passat

Brakes
5 complaints
Lane departure
5 complaints
Air bags
3 complaints
Electrical system
3 complaints
Exterior lighting
2 complaints
Steering
2 complaints
Engine
1 complaints
Equipment
1 complaints
Forward collision avoidance
1 complaints
Other or unknown
1 complaints
Body and structure
1 complaints
Tires
1 complaints

← All problems reported for the 2021 Volkswagen Passat

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology