AI DamageMercedes-Benz redundant EQS 450 reliability: problems, complaints, recalls
Summary for the Mercedes-Benz redundant EQS 450 across 2 model years: 6 owner complaints and 124 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Forward collision avoidance 33% of all complaints
- 3 Air bags 17% of all complaints
- 4 Service brakes 17% of all complaints
- 5 Tires 17% of all complaints
- Electrical system: 3 complaints (50% of all); manufacturer bulletins for this component: 138.
- Forward collision avoidance: 2 complaints (33% of all); manufacturer bulletins for this component: 8.
- Air bags: 1 complaints (17% of all); manufacturer bulletins for this component: 2.
- Service brakes: 1 complaints (17% of all); manufacturer bulletins for this component: 2.
- Tires: 1 complaints (17% of all).
Symptoms owners describe
How many of the 6 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 3 | 0 | 138 |
| Forward collision avoidance | 2 | 0 | 8 |
| Air bags | 1 | 0 | 2 |
| Service brakes | 1 | 0 | 2 |
| Tires | 1 | 0 | 0 |
| Exterior lighting | 0 | 0 | 21 |
| Structure | 0 | 0 | 21 |
| Visibility | 0 | 0 | 15 |
| Seats | 0 | 0 | 14 |
| Backover prevention | 0 | 0 | 10 |
| Steering | 0 | 0 | 10 |
| Suspension | 0 | 0 | 9 |
| Engine | 0 | 0 | 8 |
| Lane departure | 0 | 0 | 8 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The vehicle went to catch on fire and the electrical socket burnt so it could no longer charge. The airbag showed malfunction passenger side door. Multiple times the collision warning has malfunction and alerted there was a collision when none occurred.
It is causing frequent phantom braking and sudden stops both in normal driving use and cruise control.
Car turns off completely while driving with "Battery malfunction" and "Towing not permitted" error. This happened while driving on a highway at the end of a bridge going downhill so I was able to pullover to the shoulder before the vehicle came to complete stop but if this happened while on the bridge going uphill,…
No warning lights were illuminated. The vehicle was taken to the dealer but was not yet diagnosed. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V372000 (Electrical System); but the VIN was not included.
The vehicle was taken to the local dealer who was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not yet contacted. The failure mileage was 1,000.
So I've had to have 1 tire replaced already working on number 2. First one not sure what the problem was, but this tire is having problems holding air. It'll hold air for about 9 hours then the gauge on inside of car comes in saying low tire pressure.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Yellow instrument cluster message
- Complaint The "Easy entry and exit feature" function deactivates itself after a brief period
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint The OTA software update prepares the SRS/ORC controller and enables it to be updated remotely in…
- Complaint One of the flush door handles (Also referred to as Seamless Door Handles) does not…
- Complaint
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated DRIVE PILOT software available…
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system SCN…
- Complaint Reduced Drive Power' warning displayed on Instrument Cluster, as Illustrated in the Picture, but…
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the…
- Complaint Squeaking or creaking noises on uneven roadways, in turns, or when moving in their seat
- Complaint The adaptive rear compartment lighting is sporadically inoperative
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.