Problems · by component

2003 Volkswagen Passat engine and engine cooling problems

137 owner complaints to NHTSA about the 2003 Volkswagen Passat cite engine and engine cooling, 21% of all 641 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
137
21% of all complaints
Crashes
1
Reported by owners
Fires
22
Reported by owners
Injuries
3
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“The contact owns a 2003 Volkswagen Passat. The contact stated that while driving at an undisclosed speed, coolant leaked onto the front passenger’s side floorboard. The contact stated that the coolant leak was underneath the glove compartment area. The vehicle was taken to an independent mechanic, and the contact was advised to have the vehicle taken to the Volkswagen dealer. The contact visited the dealer and discussed the reoccurring failure and was informed that the heater coil was designed incorrectly, and the failure was due to the design of the heater coil. The contact was informed that the heater coil needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 72,000.”
Owner complaint to NHTSAFiled Dec 21, 2023Engine and engine coolingODI 11561345
“TL* THE CONTACT OWNS A 2003 VOLKSWAGEN PASSAT. WHILE PULLING OUT OF THE DRIVEWAY, THE CONTACT STATED THAT COOLANT WAS LEAKING FROM THE VEHICLE. THE LOW COOLANT WARNING INDICATOR ILLUMINATED AND AN ABNORMAL BEEPING SOUND WAS HEARD WHILE DRIVING VARIOUS SPEEDS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND IT WAS DIAGNOSED THAT THE COOLANT LEAK WAS DUE TO AN ENGINE FAILURE THAT WAS NOT REPAIRABLE. THE DEALER WAS NOT CONTACTED FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 124,675. THE VIN WAS NOT AVAILABLE.”
Owner complaint to NHTSAFiled Jun 7, 2018Engine and engine cooling, EngineODI 11100442
“TL* THE CONTACT OWNS A 2003 VOLKSWAGEN PASSAT. WHILE DRIVING AT APPROXIMATELY 60 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE TIMING BELT NEEDED TO BE REPLACED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14E007000 (ENGINE AND ENGINE COOLING). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.”
Owner complaint to NHTSAFiled May 8, 2015Engine and engine coolingODI 10715327
“ENGINE LIGHTS COME ON. CAR AT TIMES START SHAKING - NOT CONSISTENTLY THOUGH. TOOK IT TO SHOP: FOUND OUT IGNITION COILS MISFIRES. THIS HAS OCCURRED 4 TIMES IN A 2 YEAR TIME SPAN. THE MOST RECENT 2 BEING A MONTH APART. THE MOST RECENT INCIDENT BURNED ALMOST ALL OF THE SPARK PLUGS. DID RESEARCH AND THIS WEBSITE DESCRIBES MY SITUATION PERFECTLY: HTTP://WWW.VWPROBLEMS.COM/TRENDS/IGNITION-COIL/. *TR”
Owner complaint to NHTSAFiled Apr 26, 2015Engine and engine coolingODI 10712966
“FUEL SUPPLY LINE BEGAN LEAKING AT MOUNTING POINT ON FIREWALL ABOVE CATALYTIC CONVERTER. BREAK/CRACK IN LINE WAS SIGNIFICANT AND POSED A HIGH PROBABILITY OF FIRE, AS ANY FUEL LEAK, BUT SUBSTANTIALLY MORE SO DUE TO THE LOCATION ABOVE THE CATALYTIC CONVERTER. *TR”
Owner complaint to NHTSAFiled Jul 14, 2012Engine and engine cooling, Fuel/propulsion systemODI 10465667
“TL* THE CONTACT OWNS A 2003 VOLKSWAGEN PASSAT. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START. THE CONTACT ALSO STATED THAT THE VEHICLE EMITTED A NOISE IN WHICH IT SOUNDED LIKE IT WAS LOW ON FUEL. THE VEHICLE HAD NOT BEEN TAKEN TO THE DEALER. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE VEHICLE WAS NOT UNDER RECALL. THE MANUFACTURER ALSO STATED THAT THEY WERE NOT RESPONSIBLE FOR REPAIRS. THE FAILURE AND CURRENT MILEAGES WERE 113,008.”
Owner complaint to NHTSAFiled May 8, 2012Engine and engine coolingODI 10457764

Showing 6 of 137 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Engine and engine cooling: engine

Free remedy

The Gates Corporation (Gates) is recalling certain aftermarket Tru-Flow Water Pumps, part number TFW 41127, sold at certain NAPA Auto Parts and/or installed by automotive service technicians after November 1, 2013 (and manufactured August 2013 through October 2013) that have a black-colored pulley/sprocket or do not have 'US9377' stamped on the water pump housing. These service replacement parts were sold for use in model year 1999-2005 Audi A4, 2000-2006 Audi TT, 1998-2005 Volkswagen Beetle, 1999-2006 Golf, 1999-2008 and 2011-2013 Volkswagen Jetta, and 2000-2005 Volkswagen Passat. In the affected water pumps, the pulley or sprocket that turns the timing belt may develop microfractures causing the timing belt to fail.

Engine and engine coolingReported Mar 7, 2014NHTSA 14E007000
Data from NHTSA Recalls API · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.