2017 Mercedes-Benz SL450: Recalls, Problems & MPG
Here are the deets on the 2017 Mercedes-Benz SL450: 1 recall, 0 owner complaints and up to 23 mpg combined.

Recalls
1 vehicle recall from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
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.
Most-reported problems
No owner complaints have been filed with NHTSA for the 2017 Mercedes-Benz SL450 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 2017 Mercedes-Benz SL450.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
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FAQ
Does the 2017 Mercedes-Benz SL450 have any recalls?
Yes. NHTSA lists 1 vehicle recall for the 2017 Mercedes-Benz SL450. 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 2017 Mercedes-Benz SL450 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 2017 Mercedes-Benz SL450 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.