One problem related to tank assembly has been reported for the 1999 Mercedes Benz C280. The most recently reported issues are listed below.
Fuel sending unit and fuel gauge failed twice within 1 week period of time (after dealer replaced it). Car stalled while driving due to lack of fuel. Road condition at the time was bad. Engine check light came on afterward.
| Gasoline Fuel System problems | |
| Tank Filler Pipe And Cap problems | |
| Tank Assembly problems |