2007 Mercedes Benz S550 problems, complaints & recalls
Most-reported problem areas: Suspension (12) · Vehicle Speed Control (9) · Power Train (5)
🛣️ Complaints by mileage
41 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (94)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). the noise is heard once in each instance when changing direction of travel. note: sound file in attachment cause if the complaint is eliminated by experimentally loosening the outboard collar n
Electrical System 2026-05-26 · LI82.85-P-080507 · Service Bulletin/Repair Instructions
complaint after successful commissioning of the hermes control unit (n112/9) with xentry diagnosis dvd 03/2026, the message "sos - service not activated" appears on the instrument cluster. in addition, the following two conditions are also met: • hermes (n112/9) control unit: event code b15ce00 is a
Visibility/Wiper 2026-05-19 · LI82.30-P-059239 · Service Bulletin/Repair Instructions
complaint there are several types of complaint about noises or poor windshield wiper wiping performance: a: wiper blades squeaking, chattering, shuddering b: the windshield is not wiped completely (streaking) c: during the downward movement water is pulled back onto the windshield from the a-pillar
Showing the 6 most recent of 94 bulletins. Search all of them free at nhtsa.gov.
What owners report
2024-09-24 · Exterior Lighting“i went to replace my low beam and high beam bulbs on the passenger side and found that the wiring for the low beam had 0 insulation on it and i installed the new high beam bulb and the wires starting arcing causing the car to turn off the high beams and start smoking from the headlight assembly.…”
2024-06-02 · Suspension“vehicle's body movement or damping motion while traveling on highway responds awkwardly. the vehicle has a waddle or a side to side motion instead of an up/down motion while traveling over the highway at 60 mph. my initial thoughts were to replace the vehicle's (air ride) struts. i chose to have mercedes-benz of tyler analyze the vehicle ride probl…”
2023-05-22 · Suspension · 205,000 mi“the contact owns a 2007 mercedes benz s550. the contact stated that after starting the vehicle, it was discovered that the rear passenger’s side and front driver’s side air suspension had failed, and the vehicle was leaning and was unstable. additionally, the message "parking brake - check manual" was displayed. the cause of the failure was not yet…”
2023-02-08 · Suspension · 131,989 mi“the contact owns a 2007 mercedes-benz s550. the contact stated while driving at approximately 65 mph, the vehicle was bouncing and pulling to the left and the right. the contact stated that the steering wheel was vibrating. the contact stated no warning lights were illuminated. the contact had taken the vehicle to a local dealer, where it was diagn…”
2022-12-02 · Suspension · 170,000 mi“the contact owns a 2007 mercedes-benz s550. the contact stated that while driving 30-40 mph, the vehicle started to decelerate independently. the contact also stated that he smelled an abnormal gasoline odor inside the vehicle. the contact veered to the side of the roadway. the contact stated that the vehicle failed to restart. the contact was able…”
2022-10-29 · Suspension“struts and braking system have been unstable since i purchased the car. wiring harness leaks oil and caused ecu to intermintinli turn off and on. also the heat control timing caused car to over heat . eventually i replaced the ecu 2 years ago at dealer . mercedes has parts that are not safe to be in these operating conditions with such heat causei…”
2021-08-24 · Structure:body“i brought a car from a car dealer in tampa florida and when i got the car i noticed that the car would not pickup speed after pressing the gas pedal and it was asking me to turn off the engine or it will fail . also when i tried to put in coolant. i seen a milky substance that was coming out of the hoses and in the overflow tank of the coolant rese…”
2021-04-29 · Suspension“advised by service advisor need to replace me control unit(ecm), costing $2,000.82. less than 5 years ago suspension costing 2,000. all work done at mercedes benz of south orlando.…”
2020-03-22 · Vehicle Speed Control · 74,800 mi“the contact stated that i purchased a used mercedes from bmw of mobile. while driving the car it loses power. i was on the interstate and it loss power. i almost had a panic attack because the car was slowing down. i had no idea what was going on. i had to make my way to the right lane to get off the road. the cars were driving 70 and 80 mph. the…”
2019-10-03 · Fuel/Propulsion System · 144,000 mi“tl* the contact owns a 2007 mercedes-benz s550. while driving 60 mph, the odor of fumes emitted through the vehicle and made the contact nauseous. medical attention was not received. the contact called olympia pre owned auto (1806 wake forest rd, raleigh, nc 27608, (919) 301-8551) and was informed that they would call her back. the vehicle was not …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.