2019 Mercedes-Benz Sl 450: Recalls, Problems & MPG
Here are the deets on the 2019 Mercedes-Benz Sl 450: 4 recalls, 0 owner complaints and up to 23 mpg combined.
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Recalls
4 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Airbags Vehicle recall #19V571000 · 2019 · 457 vehicles
What's wrong: 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.
Why it matters: A tear in the air bag May decrease performance and increase the risk of injury.
The fix: Mbusa will notify owners, and dealers will replace the passenger air bag, free of charge. The recall began December 13, 2019.
Transmission & drivetrain Vehicle recall #19V768000 · 2019 · 36 vehicles
What's wrong: 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.
Why it matters: Unexpected changes in the vehicle's handling can increase the risk of a crash.
The fix: 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 repurchase of the vehicle. The recall began November 22, 2019.
Communication, Electrical Vehicle recall #21V058000 · 2021 · 1,292,258 vehicles
What's wrong: 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.
Why it matters: Failure of the ecall system May result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
The 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.
Communication, Electrical Vehicle recall #22V365000 · 2022 · 242,722 vehicles
What's wrong: 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.
Why it matters: 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.
The 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.
Most-reported problems
No owner complaints have been filed with NHTSA for the 2019 Mercedes-Benz Sl 450 so far.
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.0 L 6-cyl turbo | Automatic 9-spd | Rear-Wheel Drive | 20 | 28 | 23 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2019 Mercedes-Benz Sl 450.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2019 Mercedes-Benz Sl 450 have any recalls?
Yes. NHTSA lists 4 vehicle recalls for the 2019 Mercedes-Benz Sl 450. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What gas mileage does the 2019 Mercedes-Benz Sl 450 get?
EPA ratings run up to 23 mpg combined (3.0 L, Automatic 9-spd), across 1 engine and transmission combos.
Where can I get a 2019 Mercedes-Benz Sl 450 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.