| Issue ID | 786638 |
| Internal NHTSA # | 10327627 |
| Manufacurer | MERCEDES-BENZ USA, LLC. |
| Brand | MERCEDES BENZ |
| Model | C230 |
| Model Year | 2004 |
| File date | 26/04/10 |
| Component | ELECTRICAL SYSTEM |
| Product type code | VEHICLE |
| Description of the problem | The cam sensors on the mercedes m271 engine leak oil which spreads to other components via the wire harnesses connected to cam sensors. Oil contamination will damage other electrical components (namely the ecu and exhaust oxygen sensors) if the cam sensors and wire harnesses are not replaced. A new cam sensor and wire harness has been designed as the corrective action. The defective cam sensor and wire harness were used on the previous engine design (m111). There is a technical service bulletin for m111 engine but not the m271 engine. Mercedes refuses to recall this defective design on the m271 engine causing owners to pay for the $900 preventative maintenance. Without this repair the ecu (part cost $2000) and oxygen sensors (qty 2 @ $250 ea) will be eventually damaged and will need to be removed and replaced. |
| Vehicle Mileage at Failure | 99000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | BOTHELL, WA |
| VIN pattern | WDBRF40J74AXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 0 |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |