Sell your 2020 Mercedes-Benz SL-Class for cash

The 2020 Mercedes-Benz SL-Class is a two-seat sports car that came with a choice of 3.0L 6-cyl and 4.7L 8-cyl engines. Even at 6 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.

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2020 Mercedes-Benz SL-Class at a glance

Body styleTwo Seaters
Engines3.0L 6-cyl, 4.7L 8-cyl (turbocharged versions available)
TransmissionsAutomatic 9-spd
DriveRear-Wheel Drive
FuelPremium Gasoline
Fuel economy17–20 city / 25–28 highway / 20–22 combined MPG
EPA annual fuel cost$3,750–$4,100 a year (EPA estimate at current fuel prices, 15,000 miles)
Tailpipe CO₂395–435 grams per mile
EPA fuel economy score4 out of 10
EPA greenhouse gas score4 out of 10
Gross vehicle weight rating4,663–4,806 lb
Versions tested by EPA2 configurations: SL550, SL450
Age6 years

Specs, fuel cost and emissions from the EPA's fueleconomy.gov data. Your car's exact equipment may differ.

What affects its junk value

  • Age: at 6 years old, a 2020 SL-Class is newer than most junk cars, so working parts like the engine, transmission and body panels are in demand from rebuilders and parts buyers.
  • Weight: as a two-seat sports car, it weighs less than a truck or SUV, so its value leans more on parts than on scrap weight. See how scrap prices by weight work.
  • Catalytic converter: like all gas and diesel cars, it has a catalytic converter containing precious metals, one of the most valuable parts on a junk car. An offer assumes it's still in place. More on catalytic converters.
  • Recalls: NHTSA lists 3 recalls for the 2020 SL-Class. Open recalls don't stop you from selling or junking it.
  • Known problems: owners reported the most issues with the communication. If that's what failed on yours, it can still be sold as-is.

How junk car offers are calculated

2020 Mercedes-Benz SL-Class recalls

NHTSA lists 3 safety recalls covering the 2020 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.

CommunicationMay 2022 · NHTSA campaign 22V365000

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…

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.

Fuel System, GasolineDec 2021 · NHTSA campaign 21V961000

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…

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.

Electrical SystemFeb 2021 · NHTSA campaign 21V058000

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.

Common 2020 SL-Class problems

Owners have filed 2 complaints about the 2020 Mercedes-Benz SL-Class with NHTSA. 1 report involved a crash. Owners reported 1 injury.

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.

Most-reported components

  • Communication1
  • Electrical System1
  • Engine1
  • Power Train1
  • Vehicle Speed Control1

Typical mileage when problems were reported

    2020 Mercedes-Benz SL-Class service bulletins

    Manufacturers have filed 81 technical service bulletins and communications with NHTSA covering the 2020 Mercedes-Benz SL-Class. These are repair instructions for known issues, not recalls.

    Most common bulletin topics

    • Power Train19
    • Exterior Lighting12
    • Electrical System10
    • Steering6
    • Suspension6
    • Structure4

    Recent bulletins

    • Service Bulletin/Repair InstructionsSep 2026 · LI27.00-P-073124

      Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic trans

    • Service Bulletin/Repair InstructionsSep 2026 · LI42.10-P-078779

      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

    • Service Bulletin/Repair InstructionsSep 2026 · LI27.10-P-075869

      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

    • Service Bulletin/Repair InstructionsSep 2026 · LI82.62-P-078631

      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).

    Selling a 2020 SL-Class: questions

    How much is a 2020 Mercedes-Benz SL-Class worth for junk?

    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.

    Can I junk a 2020 SL-Class that doesn't run?

    Yes. We buy 2020 SL-Classs that don't start, were in an accident, failed inspection or have a blown engine or transmission. Towing is always free.

    Can I sell a 2020 SL-Class with open recalls?

    Yes. Open recalls don't prevent a junk sale. NHTSA lists 3 recalls for the 2020 Mercedes-Benz SL-Class; you can check whether any are still open on yours with the VIN lookup at nhtsa.gov/recalls.

    What paperwork do I need to sell my 2020 SL-Class?

    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.

    Sources

    Data retrieved October 2026.

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