| Issue ID | 1655667 |
| Internal NHTSA # | 11320598 |
| Manufacurer | Mercedes-Benz USA, LLC. |
| Brand | MERCEDES BENZ |
| Model | SL550 |
| Model Year | 2013 |
| File date | 12/03/20 |
| Component | SERVICE BRAKES |
| Product type code | VEHICLE |
| Description of the problem | Jun 2017: annual service. Ask to have brakes checked because brake pedal was travelling down to the floor. Jun 2018: annual service. Complaint: brake pedal would hit the floor and as it traveled down further, the engine acceleration ticked-up, at which time i released the brake pedal and re-applied the brakes successfully. Jun 2019: annual service: strong complaint: ditto jun 2018 except as the brake pedal approached the floor, the engine acceleration was increasing. 12 mar 2020: accident: time 0645 am pst, traveling west-bound on a near-straightaway (slight 5-degree curve to the left) at 40 mph in a 50 mph zone on a 6-lane roadway, in far-right lane with 8-car-lengths to the car ahead, i applied the brakes as the cars ahead of me slowed to a stop in the right lane. I continued increasing pressure on the brakes until the pedal was on the floor, the anti-lock brakes system never engaged and at about 20-ft to the car ahead, the engine rpm took over defeating the whole brake system resulting in my car accelerating and smashing into the car stopped ahead of my car. In hind-sight, i found out that m-b of san diego service dept. Never performed a drive-test to check-out my requests but instead performed a standard brake-pads & fluid-level check and returned the car to me in as-is condition. Until 12 mar, this problem of the brakes traveling to the floor before the rpm-increase engaged had been under control, being most noticeable at low speeds of 10-12 mph in the costco parking lot thru-ways at which time i had ample distance to release the brakes, disengage the rpm-increase and re-apply the brakes. It appears m-b took my requests and complaints in a less than literal sense or urgency. |
| Vehicle Mileage at Failure | 36800 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | SAN DIEGO, CA |
| VIN pattern | WDDJK7DA3DFXXXXXX |
| Was vehicle invloved in a crash? | Y |
| 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 |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 40 |
| 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 |