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Mercedes-Benz 450SLC Recalls & Complaints by Model Year

NHTSA lists 3 safety recalls and 3 owner complaints across 6 model years of the Mercedes-Benz 450SLC (1973–1979). The most-complained-about year is 1979.

3
safety recalls, all years
3
owner complaints, all years
1976
year with most recalls
1979
year with most complaints

Pick your Mercedes-Benz 450SLC model year

Model yearRecallsComplaints
1979 Mercedes-Benz 450SLC12
1977 Mercedes-Benz 450SLC01
1976 Mercedes-Benz 450SLC20
1975 Mercedes-Benz 450SLC10
1974 Mercedes-Benz 450SLC10
1973 Mercedes-Benz 450SLC10

What Mercedes-Benz 450SLC owners complain about

Across all model years, owners have filed 3 complaints with NHTSA. The 1979 model year has the most, with 2.

All Mercedes-Benz 450SLC recalls (3)

Every NHTSA safety campaign that lists a Mercedes-Benz 450SLC, most recent first, with the model years each one covers.

  1. Automatic transmission (power train)

    NHTSA 84V007000 Reported 54,056 vehicles potentially affected MERCEDES-BENZ USA, INC.

    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.

    Remedy: Plastic bushings will be replaced with steel bushings.

    Model years: 1979

  2. Vehicle speed control

    NHTSA 77V027000 Reported 18,000 vehicles potentially affected MERCEDES-BENZ USA, INC.

    On the involved vehicles, corrosion could develop in the cruise control system servo unit. Consequently, the cruise control system may not respond to attempts to release it by depressing the brake pedal, but could begin to accelerate the vehicle from the set speed (above approximately 30 MPH).

    Remedy: Dealer will inspect and, if necessary, install a replacement actuator unit inside the passenger compartment, free of charge.

    Model years: 1973, 1974, 1975, 1976

  3. Vehicle speed control

    NHTSA 76V027000 Reported 15,367 vehicles potentially affected MERCEDES-BENZ USA, INC.

    Model years: 1976

Other Mercedes-Benz models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.