NHTSA Complaint #11502252 — 2017 MERCEDES-BENZ B 250E
POWER TRAIN issue reported to NHTSA
Complaint Details
| ODI Number | 11502252 |
| Vehicle | 2017 MERCEDES-BENZ B 250E |
| Component | POWER TRAIN |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | WA |
Consumer Description
Electric motor has a coolant line running through it that has developed a leak and is in the process of destroying the motor. This is apparently a known issue that affects all Mercedes E-Class Electric Drive, B250e, Toyota RAV4-EV and some early Tesla Model S cars that have this early type Tesla motor installed. If the motor is not replaced, it could seize. Our car has only 23K miles on it but is out of warranty. I checked the speed sensor on 1/16 and found lots of coolant leakage and evidence of motor abrasion (see attached picture). The car developed a whining/whirring sound a couple of months earlier that are indicative of the problem.
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