2003 Volvo S40 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 6%of 18 total for the year
- Median mileage
- 85,106miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2003 Volvo S40, 6% of the 18 complaints for this model year. Where a mileage was given, the median is 85,106 miles. 1 a fire, according to the filers.
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.
“I was driving when the car start to accelerated by itself, accel pedal went to the floor. I could not keep a car even by the hand brake, so as it was jumping ahead. Then the car began to blow black and white smoke out under the hood. Some how I turn off the engine, took the key and run away from the car in the middle of the traffic road. Green liquid under the car. It died on the road. Police came, the car towed. …”
NHTSA complaint #10348314, filed 2010-08, 85,106 milesRelated service bulletins
- 10219421Aug 29, 2022Engine Control Module (EMS) Software (MSW) Information â August 2022; Improvement List (Change Log) - US21+OBD22 (13L VGT, TC) And US17+OBD22 (11L) Emissions
- 10169030Oct 16, 2019This is a Technical Journal: Oil in cooling system. New cleaning method developed.
- 10157864Feb 9, 2019This is a Technical Journal: Oil in cooling system. New cleaning method developed.
- 10156257Feb 9, 2019This is a Technical Journal: Oil in cooling system. New cleaning method developed.
- 10026148Aug 1, 2008Volvo: pzev (s40/v50) vehicles have extended warranty coverage for the engine manage ment software (ems) on some model year 2003-2008 models. Pzev csc letter was received.
- 10022341May 1, 2007Immobilizer warning lamp lit or flashing, immo-dtc 321.
Engine cooling: other model years
Other parts of the 2003 Volvo S40
6 complaintsElectrical system
3 complaintsFuel system
3 complaintsSuspension
2 complaintsTires
2 complaintsVehicle speed control
2 complaintsEngine
1 complaintsEquipment
1 complaintsOther or unknown
1 complaints
← All problems reported for the 2003 Volvo S40
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