2004 Volkswagen Passat Engine cooling Problems
- Complaints
- 59about this part
- Share
- 21%of 279 total for the year
- Median mileage
- 75,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 59 complaints about the engine cooling of the 2004 Volkswagen Passat, 21% of the 279 complaints for this model year. Where a mileage was given, the median is 75,000 miles. 5 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I began noticing a very strong smell of gasoline coming through the vent while driving. When I pulled over to check under the hood, I noticed that the rigid fuel line had cracked where it passed through a mounting bracket on the upper rear of the engine bay. The crack was emitting a steady flow of fuel onto the engine and exhaust manifold. We did not drive the car any further and had the line repaired with a patch of flexible fuel line material.”
NHTSA complaint #10626953, filed 2014-08, 166,000 miles“The sludge problem that is common in Volkswagen 1.8 4 cylinder engines has happened to our car. The dealer has repaired the problem but Volkswagen refuses to honor the warranty even though we have jumped through every hoop they can think of. The last one is that they wanted the VIN number printed out on every oil change receipt.”
NHTSA complaint #10207035, filed 2007-10, 62,000 miles“We have a 2002 and a 2004 Volkswagen Passat sedan and wagon. Both have suffered motor mount leakage and both have broken water pump dispellers. We have replaced the water pump parts and are saving up to replace mounts on both vehicles. This seems to be a weak part for Volkswagen. We are constantly going to get something fixed which is not a typical repair for automobiles from other companies.”
NHTSA complaint #10251963, filed 2008-12, 75,001 miles“It never occurred to me that there was a problem with the engine...everytime I have the oil changed but it seems to be losing a little bit of oil. I need to add oil every 200 to 300 miles to the engine....I've checked for oil leaks..cant find any...please advise...rear seals? Maybe”
NHTSA complaint #10272831, filed 2009-06, 35,000 miles“Incident description = 2004 vw Passat had been previously report several fuel consumptions problems at hoy fox vw and gas ended up leaking out of fuel tank and cause a spill in my garage and drive. Hazard was inhalation gas in a closed in area caused head aches/ nausea/dizziness/ for my family and I I have had mutiple problems with vehicle since then has broke down on me twice in less than 1 day's time. …”
NHTSA complaint #10244587, filed 2008-10, 55,999 milesRelated service bulletins
- 10241177Aug 21, 2023Update to Volkswagen engine oil standards
- 10237427May 30, 2023Volkswagen Engine oil quality standards, update to attachments.
- 10235138Apr 24, 2023Engine oil quality standards, update to attachments.
- 10168683Nov 25, 2019Update to Volkswagen engine oil standards.
- 10158514Feb 27, 2019Gasoline Engine Misfire Diagnosis document
- 10133344Jul 5, 201717 17 01 July 5, 2017 2012855 Supersedes Technical Bulletin 17-16-02 (V171602) dated April 29, 2016 due to updated oil standards lists to current specifications. Engine Oils…
- 10236436Feb 5, 2016Gasoline quality.
- 10123015Jul 7, 2015Technical Bulletin (Air Conditioning, Cleaning of the Refrigerant Circuit (U.S.Only)): In cases where an air conditioning system component (such as a compressor or other system…
- 10123013Jul 7, 2015Technical Bulletin (HVAC, Unpleasant Odor): Unpleasant odor is coming from Heating and Ventilation system. Odor mainly occurs after vehicle has been sitting (unused) at least 5…
- 10242997Dec 15, 2014VW Elsa Newsletter
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 6% |
| 2020 | 1 | 6% |
| 2016 | 2 | 2% |
| 2015 | 2 | 1% |
| 2014 | 4 | 1% |
| 2013 | 5 | 1% |
| 2012 | 4 | 1% |
| 2009 | 4 | 3% |
| 2008 | 9 | 5% |
| 2007 | 32 | 12% |
| 2006 | 66 | 11% |
| 2005 | 50 | 34% |
| 2004 | 59 | 21% |
| 2003 | 131 | 21% |
| 2002 | 135 | 21% |
| 2001 | 92 | 21% |
| 2000 | 94 | 19% |
| 1999 | 86 | 13% |
| 1998 | 39 | 12% |
| 1997 | 7 | 19% |
| 1996 | 5 | 13% |
| 1995 | 19 | 20% |
| 1994 | 9 | 36% |
| 1993 | 18 | 26% |
| 1992 | 17 | 44% |
| 1991 | 6 | 25% |
| 1990 | 12 | 35% |
Other parts of the 2004 Volkswagen Passat
57 complaintsTransmission and drivetrain
38 complaintsSeats
34 complaintsElectrical system
23 complaintsEngine
18 complaintsExterior lighting
16 complaintsBody and structure
16 complaintsBrakes
15 complaintsVisibility (wipers, defrost, mirrors)
13 complaintsOther or unknown
9 complaintsAir bags
8 complaintsTires
7 complaints
← All problems reported for the 2004 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