| Issue ID | 1318385 |
| Internal NHTSA # | 10906967 |
| Manufacurer | Mercedes-Benz USA, LLC. |
| Brand | MERCEDES BENZ |
| Model | B-CLASS ELECTRIC |
| Model Year | 2014 |
| File date | 14/09/16 |
| Component | ENGINE |
| Product type code | VEHICLE |
| Description of the problem | extremely dangerous sudden loss of power while driving 70+ mph on busy highway. Was almost involved in a serious traffic collision because it a stopped in the road. Attempts to restart the vehicle failed. Could not get the vehicle out of "park" and was unable to switch it into "neutral" to roll the vehicle out of the lane of high speed traffic. The inability to get the vehicle into "neutral" further compromised my safety and the safety of other drivers on the highway. Main low voltage 12v battery died soon after incident and created an issue for tow truck operator. He had a lot of trouble getting it into neutral because there seems to be no standardized manual / mechanical method to release the parking prawl in the transmission unless the low voltage 12v system is fully functioning. Perhaps they need to replace the entire drivetrain unit like tesla has done or their customers. Electric powertrain unit used in the mercedes is identical to early tesla vehicles. Telsa redesigned and updated these powertrain units with free replacements that resolve this issue completely. Mercedes needs to do the same repair for customers as tesla did. Software update is obviously not a sufficient fix for this issue, there must be physical faults as well. Another issue is a mystery clunk that you can feel thru the accelerator pedal when starting from a complete stop. Several attempts to get service techs to fix this but they have been unable to fix it. Perhaps it is related to the well known early production tesla drivetrain defects. My vehicle currently has 43,276 miles. This vehicle already had the software update that was supposed to guarantee that the sudden loss of power would not happen again. (( nhtsa campaign number: 15v655000 )) i hope mercedes steps up to solve this issue like telsa has done for their customers. |
| Vehicle Mileage at Failure | 43276 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | CHINO HILLS, CA |
| VIN pattern | WDDVP9AB4EJXXXXXX |
| 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 | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
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| Transmission type | |
| Vehicle speed | 74 |
| DoT tire identifier | |
| Tire size | |
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| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
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