One problem related to defogger heater has been reported for the 2003 Mercedes Benz Sl Class. The most recently reported issues are listed below.
The heater motor had blown out. The vehicle box caught on fire. The fire melted the melted the wiring harness.
| Side/rear Glass problems | |
| Windshield Wiper/washer problems | |
| Defogger Heater problems |