general problems of the 2003 Mercedes Benz C320

Three problems related to electrical system have been reported for the 2003 Mercedes Benz C320. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mercedes Benz C320 based on all problems reported for the 2003 C320.

1 Electrical System problem

Failure Date: 01/18/2026

The secondary instrument fuse block located on the driver's side of the dashboard erupted in flame while the vehicle was being driven, endangering its occupant, causing significant damage to its interior, and resulting in a local law enforcement "traffic hazard" determination.

2 Electrical System problem

Failure Date: 07/23/2024

The contact owns a 2003 mercedes-benz C320. The contact stated that the sunroof had failed to open, and the sunshade cover failed to close, causing the sunrays to penetrate the vehicle. The vehicle was taken to the dealer, where an unknown assessment was made. The vehicle was not repaired. Additionally, the contact stated that the horn was inoperable. The srs warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with front driver's side air bag failure. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 124,000.

3 Electrical System problem

Failure Date: 12/01/2016

Mercedes benz possible recall / extended warranty for fuel system. . . Involving a c class 2003 with same engine as the e class. The car fuel system is totally messed up, will only fill a half tank and runs out of gas because the fuel tank system is not working correctly. Car will not fill. Only one tank taking and sending fuel apparently. Dash is messed up, lights out, fuel system totally messed up. I almost went off a cliff in the car, slid backwards on a hillside when the car ran out of fuel unexpectedly. No gas, no power, my car went backwards, brakes not working, I went into a ditch and almost into a steep hillside, very scary. A car branch saved my demise, holding the top of the car and kept me from going down into a ravene. Dent on the back roof is still there. Mercedes benz refuses to acknowledge any problems although the problem is apparently prolific in cars this year and type. Same fuel system on a C320 as an e320 same year. Same engine too. My mechanics are baffled, no one can fix it, mercedes shops don't want to help, no one can help.


Other Electrical System related problems of the 2003 Mercedes Benz C320



C320 Service Bulletins
C320 Defect Investigations