The 2018 Mercedes-Benz SL-Class is a two-seat sports car that came with a choice of 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl and 6.0L 12-cyl engines. Even at 8 years old, a damaged or broken-down one still has real value for its parts. Running or not, we'll make you an offer and tow it away for free.
| Body style | Two Seaters |
|---|---|
| Engines | 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl (turbocharged versions available) |
| Transmissions | Automatic 9-spd, Automatic 7-spd |
| Drive | Rear-Wheel Drive |
| Fuel | Premium Gasoline |
| Fuel economy | 13–20 city / 22–28 highway / 16–23 combined MPG |
| EPA annual fuel cost | $3,550–$5,150 a year (EPA estimate at current fuel prices, 15,000 miles) |
| Tailpipe CO₂ | 383–546 grams per mile |
| EPA fuel economy score | 2–5 out of 10 |
| EPA greenhouse gas score | 2–5 out of 10 |
| Gross vehicle weight rating | 4,663–4,872 lb |
| Versions tested by EPA | 4 configurations: SL550, AMG SL63, AMG SL65, SL450 |
| Age | 8 years |
Specs, fuel cost and emissions from the EPA's fueleconomy.gov data. Your car's exact equipment may differ.
NHTSA lists 2 safety recalls covering the 2018 Mercedes-Benz SL-Class. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.
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…
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.
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.
Risk: A tear in the air bag may decrease performance and increase the risk of injury.
Owners have filed 1 complaint about the 2018 Mercedes-Benz SL-Class with NHTSA.
Complaints are reports from owners and aren't verified by NHTSA. One complaint can list several components. Mileage is the median odometer reading owners reported for that component.
Manufacturers have filed 89 technical service bulletins and communications with NHTSA covering the 2018 Mercedes-Benz SL-Class. These are repair instructions for known issues, not recalls.
1 of them is a warranty extension. Warranty extensions mean the manufacturer agreed to cover a specific repair beyond the normal warranty. They rarely still apply to a car this age, but they point to known weak spots.
Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic trans
Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily
Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with lig
Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the no
Source: NHTSA manufacturer communications (technical service bulletins).
NHTSA opened 1 defect investigation covering the 2018 Mercedes-Benz SL-Class.
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to
It depends on its condition, whether major parts like the engine, transmission and catalytic converter are still there, and current scrap and parts prices where you live. Its parts make up much of its value. Enter your ZIP code above for a free offer on your specific car.
Yes. We buy 2018 SL-Classs that don't start, were in an accident, failed inspection or have a blown engine or transmission. Towing is always free.
Yes. Open recalls don't prevent a junk sale. NHTSA lists 2 recalls for the 2018 Mercedes-Benz SL-Class; you can check whether any are still open on yours with the VIN lookup at nhtsa.gov/recalls.
Usually the title and a photo ID. Rules differ by state, including what to do with your plates and whether to file a notice of sale. Check our state-by-state car title guides for the official forms.
Data retrieved October 2026.
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