2020 Mercedes-Benz SL 550 Problems, Complaints & Recalls

Source: NHTSA · Updated Feb 6, 2026 · 1 owner complaints analyzed

Compared with other SL 550 years
Not enough data 9th of 13 for complaints
NHTSA crash rating
Not rated

Owners have filed 1 complaint with NHTSA about the 2020 Mercedes-Benz SL 550. That ranks 9th out of 13 SL 550 model years for complaints. The most reported problem area is engine (1 complaints, 100%). Complaints mention 1 crash, 1 injury. There are 3 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

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Most common 2020 Mercedes-Benz SL 550 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Engine1
Power Train1
Vehicle Speed Control1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Engine1100%———
Power Train1100%———
Vehicle Speed Control1100%———

One complaint can list several problem areas, so shares can add up to more than 100%.

2020 Mercedes-Benz SL 550 recalls (3)

Tap a recall to see the problem, the risk and the fix.

Electrical system:software; communication: auto crash notificationMay 20, 2022 · NHTSA campaign 22V365000 · 242,722 vehicles

Problem: 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 module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

Fix: 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 phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Fuel system, gasoline:fuel injection system:fuel rail; fuel system, gasoline:fuel injection system:injectorsDec 13, 2021 · NHTSA campaign 21V961000 · 139 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 AMG G63, C300, E300, G550, AMG GT63, AMG GT53, 2019-2020 A220, GLA250, GLC300, 2016 C300, 2020 AMG A35, AMG C43, AMG C63, CLA250, E350, E450, GLB250, GLE450, GLS450, GLS580, S560, and SL550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.

Risk: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.

Fix: Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed April 22, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for the recall is 2022030003.

Communication: auto crash notification; electrical system:softwareFeb 5, 2021 · NHTSA campaign 21V058000 · 1,292,258 vehicles

Problem: 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 communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Fix: 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 service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

I do Own a Mercedes-Benz 2020 SL-550. On August 27, 2025, I was stopped at the curb adjacent to my house at [XXX] . When I gently tried to go right into driveway of my house, the tire hit the curb. When I gently again tried to release the tire from the curb, the car all of the sudden jump into the…

Engine · received Feb 6, 2026 · NHTSA complaint 11716315

Other Mercedes-Benz SL 550 years

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See all Mercedes-Benz SL 550 problems by year, every Mercedes-Benz model, or the Mercedes-Benz VIN decoder.

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Frequently asked questions

What are the most common problems with the 2020 Mercedes-Benz SL 550?

Owners most often report engine, power train, vehicle speed control problems. The top one, engine, accounts for 1 complaint.

Was there a recall on the 2020 Mercedes-Benz SL 550?

Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2020 Mercedes-Benz SL 550 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other SL 550 model years, the 2020 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.