Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Mercedes Benz SLK32FACTORY OEM SERVICE PROCEDURE
HVAC DTCS
DIAGNOSTIC TROUBLE CODE LIST
| DTC | Diagnostics |
|---|---|
| B1227 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1228 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1229 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1230 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1231 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1232 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1416 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1417 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1418 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1419 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1420 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1422 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1454 | Air conditioning (Tempmatic) diagnosis fault memory |
| B1459 | Air conditioning (Tempmatic) diagnosis fault memory |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.