2014 Mercedes-Benz S550 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.

• Windows, wipers and visibility4 owner complaints

  Test the wipers, washers, defrosters and every window. Look for chips or cracks in the windshield.

• Brakes3 owner complaints

  Brake firmly from moderate speed: the pedal should feel firm and the car should stop straight, with no grinding or pulsing.

• 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.

• Airbags2 owner complaints

  Make sure the airbag warning light turns off after start-up, and that every airbag recall was completed.

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.

• StructureRecall number 23V854000, Dec 15, 2023
• StructureRecall number 21V197000, Mar 19, 2021
• CommunicationRecall number 19V787000, Nov 1, 2019
• SteeringRecall number 16V899000, Dec 14, 2016
• Seat beltsRecall number 13V576000, Nov 20, 2013

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.

• EngineSep 6, 2023

Service bulletins worth asking about

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

• Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...Sep 22, 2026
• During part of the steering movement, it feels heavier or more difficult to steer in the same spot every timeAug 28, 2026
• Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...Jun 19, 2026
• There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...May 19, 2026
• Customer states the AC either does not cool/has poor performance or heat is insufficientJan 15, 2026
• Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...Jun 9, 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.