Check a VIN

2021 Mercedes-Benz GLS 450 used buying checklist

What to check on a used 2021 Mercedes-Benz GLS 450 before you pay, based on what owners report, its recalls and the repairs the maker covers. Print it and take it to the test drive.

Test for the problems owners report most

The most reported problems of this model year, with what to look for on the test drive.

  • Won't start6 owner complaints

    Start the engine cold and listen for knocking or ticking. Check for warning lights, oil leaks and a low oil level, and ask how often oil had to be topped up.

Make sure these recalls were done

Recall repairs are free at any dealer of the brand. Ask the seller for proof, or have a dealer check the VIN.

Repairs the maker may still cover

Warranty extensions can cover a known problem beyond the normal warranty. Check whether this car is still within the time or mileage limit.

Service bulletins worth asking about

Repair instructions the maker sent to dealers for known problems. Ask whether any of these repairs were done.

Before you pay

  • Decode the VIN and make sure it matches the title, the registration and the car itself.
  • Get a vehicle history report to check for accidents, salvage or flood titles and odometer problems.
  • Ask for service records, especially oil changes and any transmission fluid service.
  • Start the car from cold, and drive it at city and highway speeds for at least 20 minutes.
  • Have an independent mechanic inspect the car before you sign anything.

See every 2021 Mercedes-Benz GLS 450 problem

VIN decoder

See the problems and recalls for an exact car

Buying a used 2021 Mercedes-Benz GLS 450?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history