There are 1 owner-reported brakes complaints for the 2015 Mercedes-Benz S-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
STOPPED IN TRAFFIC ON A SLIGHT DOWNGRADE FOR A LONG PERIOD OF TIME. BRAKE PEDAL WAS APPLIED FIRMLY, WHEN THE TRUCK IN FRONT OF ME WOULD RELEASE THE PEDAL SLIGHTLY TO ALLOW THE CAR TO DRIFT FORWARD. AFTER SEVERAL TIMES THERE WERE NO BREAKS AND THE CAR DRIFTED INTO THE TRUCK IN FRONT OF US. HAD CAR BACK TO DEALER 2 TIMES THEY CLAIM THEY CAN'T FIND ANYTHING WRONG WITH IT.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026