AI DamageMercedes-Benz CLS 450: problems, complaints, bulletins
Summary for the Mercedes-Benz CLS 450 across 5 model years: 0 owner complaints and 206 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 336 |
| Powertrain | 0 | 0 | 137 |
| Equipment | 0 | 0 | 74 |
| Exterior lighting | 0 | 0 | 62 |
| Structure | 0 | 0 | 62 |
| Steering | 0 | 0 | 55 |
| Engine | 0 | 0 | 48 |
| Visibility | 0 | 0 | 36 |
| Fuel/propulsion system | 0 | 0 | 29 |
| Service brakes | 0 | 0 | 27 |
| Engine and cooling | 0 | 0 | 22 |
| Lane departure | 0 | 0 | 14 |
| Forward collision avoidance | 0 | 0 | 13 |
| Latches, locks, linkages | 0 | 0 | 13 |
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic…
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
- Complaint Sporadic warning message in instrument cluster "Engine oil pressure, stop switch off vehicle"…
- Complaint Noises in the steering column area when steering. See example file in the attachments area
- Complaint Red coolant warning in instrument cluster
- Complaint Only vehicles with a variable transfer case are affected
- Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic…
- Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same…
- Dear Mercedes-Benz Owner
- Complaint Tailgate opens unintentionally
- Complaint Clanking noise from the area of the speakers in the doors
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
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 2026-11-04.