Mercedes-Benz S-Class problems
0 safety recalls. 13 owner complaints. We mapped every trouble spot before you sign the papers.
Above-average reliability for the segment. Few systemic issues on file.
What owners are saying recent NHTSA-filed complaints · verbatim
The contact owns a 2009 Mercedes-Benz S550. The contact stated that while driving at an undisclosed speed with the air condition system activated, there was hot air blowing out of the vents. The contact stated that the hot air was blowing out of the vents and the floorboard was…
ON 8/29/17 AROUND 11:20 - 11:30AM, I WAS DRIVING ON N270 JUST OFF FROM HOV LANE FROM S495 NEAR MONTROSE EXIT(LITTLE BIT BEFORE), SOME METALLIC ROUND WHEEL TYPE WITH SHARP EDGES AROUND FLEW OVER FROM S270. I TRIED TO AVOID IT BY SWERVE MY CAR BUT IT MUST HAVE LANDED BELOW MY CAR…
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ S CLASS. THE CONTACT WAS DRIVING 55 MPH WHEN A VEHICLE AHEAD OF HIM ABRUPTLY STOPPED. THE CONTACT APPLIED THE BRAKES AS THE PEDAL WAS APPLIED DOWN TO THE FLOORBOARD AND REMAINED. THE CONTACT WAS UNABLE TO RELEASE THE BRAKE PEDAL AND…
WE TOW A 2009 SMART PASSION CAB BEHIND OUR RV, AS ALLOWED BY SMART AND IN WRITING WITHIN ITS OWNERS MANUAL. TWICE NOW, WE HAVE LOST THE HOOD (OR AS SMART REFERS TO IT, THE SERVICE FLAP) WHILE TOWING. THE HOOD COMPLETELY DISENGAGES FROM ITS LOCATION AND BASICALLY FLAPS AROUND…
Common questions
Is the 2009 Mercedes-Benz S-Class reliable?
Mostly yes. With a reliability score of 8.8 out of 10 based on 13 owner complaints filed with NHTSA, the 2009 Mercedes-Benz S-Class is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
What's the most common problem on the 2009 Mercedes-Benz S-Class?
No problem area has crossed our reporting threshold yet, which is a good sign for this vehicle.
What's the most expensive thing that goes wrong?
Major repair items haven't been flagged often enough on this vehicle to single one out.
How do I check if my Mercedes-Benz S-Class has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2009 Mercedes-Benz S-Class?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 13 complaints on file, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.