No complaints are listed for the 2020 Mercedes-Benz S 550. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as MERCEDES-BENZ S 550.
Complaints per 100k sold unavailable. No sales source is available for this record.
Model-generated complaint tags: No complaints are listed for tagging.
See new recalls and investigations this week.
0 recalls.
0 investigations; 0 open.
77 manufacturer communications.
| System | Count |
|---|---|
| ELECTRICAL SYSTEM | 30 |
| EQUIPMENT | 13 |
| POWER TRAIN | 13 |
| EXTERIOR LIGHTING | 7 |
| STEERING | 5 |
| ENGINE AND ENGINE COOLING | 4 |
| STRUCTURE | 4 |
| FUEL/PROPULSION SYSTEM | 3 |
Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.
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
Date: 2026-08-06. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.
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. a ? If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary
Date: 2026-08-04. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN, UNKNOWN OR OTHER.
Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (PNs: A002989060312 and A002989060313) bottles are out of stock or in limited supply at Zep. This LI has been created with
Date: 2026-07-14. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
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
Date: 2026-05-19. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.
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
Date: 2026-04-16. Type: Service Bulletin/Repair Instructions. Systems: EXTERIOR LIGHTING.
Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in the housing cover, then the l
Date: 2026-02-28. Type: Emissions. Systems: ELECTRICAL SYSTEM, ENGINE.
Mercedes-Benz AG (a MBAGa ), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2021 G-Class, S-Class and GT (463, 222 & 190 platforms) vehicles, the engine control unit software does not correspond to current production specifications. It is therefore possible that onboard
Date: 2026-01-15. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.
Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Verify Customer Concern a ? Confirm the issue reported by the customer. Compare to Like Vehicle a ? Determine if the behavio
Date: 2025-12-20. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
Complaint (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS) when the vehicle is stationary and ECO Start/Stop is active (combustion engine is off). The noise is more noticeable outside the vehicle and in acoustically shielded areas such as close
Date: 2025-11-03. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil qu
None listed.
| NHTSA model label | Complaints |
|---|---|
| S 550 | 0 |
The free rate-limited demo needs no key.
curl "https://api.theusedcarindex.com/v1/demo/vehicle_risk?make=Mercedes-Benz&model=S+550&year=2020"Paid endpoint: https://api.theusedcarindex.com/v1/vehicle_risk. MCP endpoint: https://api.theusedcarindex.com/mcp.