| Issue ID | 1177949 |
| Internal NHTSA # | 10712434 |
| Manufacurer | Mercedes-Benz USA, LLC. |
| Brand | MERCEDES BENZ |
| Model | E320 |
| Model Year | 2005 |
| File date | 23/04/15 |
| Component | SERVICE BRAKES |
| Product type code | VEHICLE |
| Description of the problem | This vehicle is equipped with sensotronic brake control that has a service threshold. When this threshold is reached, the vehicle's brake system defaults to non power assisted hydraulic mode to the front wheels only. This occurs without any prior warning and results in greatly increased stopping distances along with much longer time interval for vehicle speed reduction due to loss of brake effectiveness. Mercedes (hereinafter referred to as mbusa for mercedes benz usa) service bulletin s142. 46-p-0012a addresses this issue. Mercedes discontinued installing this type brake system on new production vehicles at the end of my 06. Suggested cure - mbusa should issue a mandatory recall to interrogate these vehicles with star das to determine how close to the service threshold (i. E. Brake failure) the sbc unit is. If mbusa is unable to assure the vehicle owner that (due to the design of the system) the vehicle's brakes will not default to basic hydraulic mode for front wheels only without prior notice of imminent failure, mbusa should retrofit & replace the necessary brake system components to insure vehicle safety at the expense of mbusa. This is a major life-safety issue that needs to be immediately addressed. A major reduction of efficiency in a vehicle braking system occurring without prior warning can cause property loss, personal injury and death, especially at interstate highway speeds. |
| Vehicle Mileage at Failure | 55900 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | ROCKLEDGE, FL |
| VIN pattern | WDBUF26J75AXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | 0 |
| No. of fatalities | 0 |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | 6 |
| Drive train type | RWD |
| 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 |