Western Star 5700: problems, complaints, bulletins
Summary for the Western Star 5700 across 7 model years: 0 owner complaints and 356 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) |
|---|---|---|---|
| Equipment | 0 | 0 | 451 |
| Engine and cooling | 0 | 0 | 224 |
| Engine | 0 | 0 | 195 |
| Electrical system | 0 | 0 | 151 |
| Powertrain | 0 | 0 | 118 |
| Fuel system | 0 | 0 | 72 |
| Visibility | 0 | 0 | 35 |
| Structure | 0 | 0 | 29 |
| Steering | 0 | 0 | 26 |
| Service brakes | 0 | 0 | 19 |
| Suspension | 0 | 0 | 19 |
| Vehicle speed control | 0 | 0 | 7 |
| Backover prevention | 0 | 0 | 5 |
| Fuel/propulsion system | 0 | 0 | 5 |
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- 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.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
- CX Advocate for discolored coolant surge tanks (24CSA-20)
- Technical Service Bulletin for TufTrac M12 Bolts
- CX Advocate for technical questions/issues raised
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- CX Advocate for technical questions/issues raised
- CX Advocate for technical questions/issues raised
- Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- Service Solution for DT12 Oil Plug Ports
- CX Advocate for DPF Outlet Temp High Gen5 DD15 ENGINES
- CX Advocate for NOx conversion low faults
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.