2011 Mercedes-Benz C300 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.

• Gas smell in the cabin26 owner complaints, usually around 82,000 miles

  Watch for fuel smells, hard starting and the check engine light, and make sure the fuel gauge works.

• Steering wheel locks up20 owner complaints, usually around 80,000 miles

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

• Ball joint or control arm failure17 owner complaints, usually around 105,000 miles

  Drive over bumps and listen for clunks or rattles. Look for uneven tire wear.

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.

• Air bagsRecall number 19V010000, Jan 9, 2019
• Electrical systemRecall number 17V177000, Mar 14, 2017
• Air bagsRecall number 16V363000, May 26, 2016
• Air bagsRecall number 16V081000, Feb 11, 2016
• Exterior lightingRecall number 14V177000, Apr 11, 2014
• Fuel system, gasolineRecall number 12V557000, Dec 3, 2012

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.

• In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the...Oct 20, 2023
• Visibility/wiperOct 29, 2020

Service bulletins worth asking about

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

• Clanking noise from the area of the speakers in the doorsSep 14, 2026
• Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements...Jul 7, 2026
• Potential corrosion on the rear axle carrierMay 13, 2026
• Potential corrosion on the rear axle carrierApr 21, 2025
• Creaking noise, in irregular sequence when driving slowly in combination with slight steering movementsJan 28, 2025
• As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation...Mar 12, 2024

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.