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Mercedes-Benz SL 450 Recalls & Complaints by Model Year

NHTSA lists 4 safety recalls and 2 owner complaints across 3 model years of the Mercedes-Benz SL 450 (2018–2020). The most-complained-about year is 2018.

4
safety recalls, all years
2
owner complaints, all years
2019
year with most recalls
2018
year with most complaints

Pick your Mercedes-Benz SL 450 model year

Model yearRecallsComplaints
2020 Mercedes-Benz SL 45021
2019 Mercedes-Benz SL 45040
2018 Mercedes-Benz SL 45021

What Mercedes-Benz SL 450 owners complain about

Across all model years, owners have filed 2 complaints with NHTSA. The 2018 model year has the most, with 1.

All Mercedes-Benz SL 450 recalls (4)

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

  1. Auto crash notification (communication) and software (electrical system)

    NHTSA 22V365000 Reported 242,722 vehicles potentially affected Mercedes-Benz USA, LLC

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication…

    Remedy: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in…

    Model years: 2019, 2020

  2. Software (electrical system) and auto crash notification (communication)

    NHTSA 21V058000 Reported 1,292,258 vehicles potentially affected Mercedes-Benz USA, LLC

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the…

    Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer…

    Model years: 2018, 2019, 2020

  3. Axle assembly (power train)

    NHTSA 19V768000 Reported 36 vehicles potentially affected Mercedes-Benz USA, LLC.

    Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 SL450, SL63 AMG, and SL550 vehicles. Over time, the bolt connection at the front-left mounting point on the rear axle carrier casting may fail, possibly affecting the vehicle's handling.

    Remedy: MBUSA will notify owners, and dealers will inspect the front-left mounting point of the rear axle carrier. If a defect in the bolt connection of the rear axle carrier is found, MBUSA will contact the owner and offer a…

    Model years: 2019

  4. Inflator module (air bags)

    NHTSA 19V571000 Reported 457 vehicles potentially affected Mercedes-Benz USA, LLC.

    Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2018 SL65 AMG, 2019 SL63 AMG and 2018-2019 SL450 and SL550 vehicles. The front passenger air bag may have been improperly sewn, allowing the seam to tear during deployment.

    Remedy: MBUSA will notify owners, and dealers will replace the passenger air bag, free of charge. The recall began December 13, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall…

    Model years: 2018, 2019

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.