1997 Mercedes-Benz SL320: Recalls, Problems & MPG
Here are the deets on the 1997 Mercedes-Benz SL320: 1 recall, 6 owner complaints and up to 18 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.
Airbags Vehicle recall #99V327000 · 1999 · 4,402 vehicles
What's wrong: Corrosion of the electrical ignition filament of the air bag gas generator module can occur if the vehicle is operated in areas of frequently high humidity.
Why it matters: Corrosion of the ignition filament can result in the driver's air bag being deployed unintentionally.
The fix: Dealers will replace the driver's air bag module.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 1 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Electrical (2): the most common themes are leaks (2).
- Engine & cooling (2): the most common themes are leaks (2).
- Visibility (wipers, glass) (1): no single recurring theme in the descriptions.
- Equipment (1): no single recurring theme in the descriptions.
The 1997 Mercedes-Benz SL320 has 6 owner complaints, ranking #2 of 7 SL320 model years for complaints (about average; the typical year has 5). Complaints peaked in 1999 (2 filed that year). The typical problem showed up when the car was about 6 years old, at a median of 150,000 miles. Neighboring years: 1996 (4 complaints, 0 recalls), 1998 (3 complaints, 0 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.2 L 6-cyl | Automatic 5-spd | Rear-Wheel Drive | 16 | 22 | 18 | 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 1997 Mercedes-Benz SL320.
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 1997 Mercedes-Benz SL320 have any recalls?
Yes. NHTSA lists 1 vehicle recall for the 1997 Mercedes-Benz SL320. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 1997 Mercedes-Benz SL320 problems?
Owners have filed 6 complaints with NHTSA. The most-reported areas are electrical (2), engine & cooling (2), visibility (wipers, glass) (1).
What gas mileage does the 1997 Mercedes-Benz SL320 get?
EPA ratings run up to 18 mpg combined (3.2 L, Automatic 5-spd), across 1 engine and transmission combos.
Where can I get a 1997 Mercedes-Benz SL320 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.