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Engine coolingPart report

1991 Volkswagen Jetta Engine cooling Problems

Complaints
5about this part
Share
16%of 31 total for the year
Median mileage
120,782miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine cooling of the 1991 Volkswagen Jetta, 16% of the 31 complaints for this model year. Where a mileage was given, the median is 120,782 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.

“1991 Volkswagen Jetta heater core failure. Coolant smell and coolant loss dripping on carpet by drivers feet and fogs up windshield making it dangerous to drive especially at night. I have access to alldata auto repair website and there is a recall listed for this vehicle. The local dealer said it doesn't apply to my car.”

NHTSA complaint #10257764, filed 2009-02, 81,565 miles

“The heater core connection lines in my Jetta failed, and my sister was burned mildly when the hot coolant leaked down onto her feet, above the gas pedal. There is a recall already for this problem, but my vehicle manufacture date was not included in that recall ( recall campaign number: 92v050000 ). This recall should be re-issued to include all 1991 models that were manufactured in 1990, because the design did not change after the last manufacture date allowed for recall. …”

NHTSA complaint #10139701, filed 2005-10, 160,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202412%
202312%
201920%
201721%
201611%
201532%
201462%
201341%
201282%
2011254%
2010718%
2009728%
200874%
200794%
2006549%
20054117%
20043716%
20034510%
200210415%
200110916%
200012128%
19997822%
1998158%
19971120%
199613%
19952612%
19942017%
1992620%
1991516%
1990732%
198927%
1987317%
1985215%

Other parts of the 1991 Volkswagen Jetta

Visibility (wipers, defrost, mirrors)
7 complaints
Vehicle speed control
5 complaints
Electrical system
4 complaints
Seat belts
3 complaints
Brakes
2 complaints
Steering
2 complaints
Body and structure
2 complaints
Transmission and drivetrain
2 complaints
Fuel system
1 complaints
Latches, locks and linkages
1 complaints
Suspension
1 complaints
Tires
1 complaints

← All problems reported for the 1991 Volkswagen Jetta

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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