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.
1995 Mercedes Benz SL320FACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions
NOTE:
Observe Preparation for Test, see PREPARATION FOR TESTS (SECTION 22) .
DIAGNOSTIC TROUBLE CODE LIST
| Generic DTC | Mercedes Benz DTC | Possible Cause | Test Step/Remedy |
|---|---|---|---|
| 1 | - | No fault in system | In case of complaint: do entire test 23. See ELECTRICAL SYSTEM TESTS (SECTION 23) . |
| 5 | 005 | Maximum allowable temperature in module box exceeded Module box blower motor was phased out of production on model 140 starting M.Y. 1994 |
15.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 15.0-18.0) |
| 6 | 06 | A/C electromagnetic clutch (A9k1) jammed or poly-V-belt broken | 13.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 11.0-14.0) visually inspect compressor and poly-v-belt |
| 7 | 007 | Poly-V-belt slips | 13.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 11.0-14.0) check poly-v-belt tension |
| 10 | 010 | Base module (N16/1) voltage supply output fuse F2, open circuit | 8.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 8.0-10.0) |
| 11 | 011 | Base module (N16/1) voltage supply output fuse F3, open circuit | 9.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 8.0-10.0) |
| 12 | 012 | Base module (N16/1) voltage supply output fuse F1, open circuit | 6.0, 7.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 4.0-7.0) |
| 15 | 015 | Kickdown switch (S16/6) | 16.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 15.0-18.0) |
| 16 | 016 | A/C electromagnetic clutch (A9k1), short circuit | 13.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 11.0-14.0) |
| 17 | 017 | Module box blower motor (M2/2), short circuit Module box blower motor was phased out of production on model 140 starting M.Y. 1994 |
15.0, see ELECTRICAL SYSTEM TEST - Section 23 (Steps 15.0-18.0) |
Factory Service Tools
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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.