The 1979 Mercedes-Benz 450slc has 1 NHTSA recall campaign affecting an estimated 54,056 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 2 complaints with NHTSA, most often about the vehicle speed control. Last updated July 5, 2026.
THE AUTOMATIC TRANSMISSION DOWNSHIFT LINKAGE ADJACENT TO THE ENGINE THROTTLE CONTROL CONTAINS A PLASTIC BUSHING THAT COULD DEFORM DUE TO HIGH ENGINE COMPARTMENT TEMPERATURES CREATED BY THE CATALYTIC CONVERTER.
PLASTIC BUSHINGS WILL BE REPLACED WITH STEEL BUSHINGS.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“While parking her vehicle inside of the parking lot. Without prior warning the vehicle accelerated forward and hit a tree and bank building. *jb *yh”
“When engine was started, it ran at full throttle due to a nylon bushing failure, the nylon bushing was noted to be completely disintegrated. *slc”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1979 Mercedes-Benz 450slc as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.