There are 1 owner-reported fuel system complaints for the 2018 Mercedes-Benz S-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WHEN THE CAR IS LIFTED IN THE FRONT (TO CHANGE BOTH TIRES) THERE IS A STRONG ODOR OF FUEL COMING FROM THE REAR OF THE CAR WHEN WALKING AROUND THE BACK. THE TANK WAS 50%FULL AND THIS OCCURS WHENEVER THE CAR IS LIFTED IN THE FRONT.
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