2008 Mercedes Benz ML320 used buying checklist

Test for the problems owners report most

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

• Lights6 owner complaints

  Check every exterior and interior light, and look for condensation inside the headlights.

• Electrical system4 owner complaints

  Test every screen, camera, power window, lock and the key fob. With the engine running, make sure no warning lights stay on.

• Engine and cooling4 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.

• Steering3 owner complaints

  Turn the wheel from lock to lock while parked and on the road: it should be smooth, with no clunks, stiffness or warning lights.

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.

• Service brakes, hydraulicRecall number 24V298000, Apr 26, 2024
• Service brakes, hydraulicRecall number 22V315000, May 9, 2022

Service bulletins worth asking about

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

• Headlamp, front fog lamp leaky or foggedApr 16, 2026
• Headlamp, front fog lamp leaky or foggedMar 9, 2026
• Headlamps leaking or foggedFeb 25, 2026
• Headlamp, front fog lamp leaky or foggedApr 28, 2025
• Vehicle with atypical reduced heat outputApr 1, 2025
• During a phone call, the called party has difficulty understanding/cannot understand the driver, or...Mar 5, 2025

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.