Table 1 shows one common engine and engine cooling related problems of the 2003 Volkswagen Golf.
| Problem Category | Number of Problems |
|---|---|
| Engine Cooling System problems |
Engine overheated due to water pump failure, requiring water pump replacement. Plastic impeller degraded and failed. Use of plastic for impeller is a design flaw in the water pump otherwise made of aluminum, and should be recalled and replaced by vw under warranty.