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.
1988 Mercedes Benz 560SLFACTORY OEM SERVICE PROCEDURE
Trouble Shooting: Notes
MALFUNCTION DIAGNOSTIC CODES
| Trouble Code/No. of Flashes | Malfunctioning Component |
|---|---|
| 1 | No system malfunction |
| 2 | Throttle valve switch |
| 3 | Coolant temperature sensor |
| 4 | Airflow sensor position indicator |
| 5 | Oxygen sensor |
| 6 | Not used |
| 7 | TD signal |
| 8 | Altitude correction capsule |
| 9 | Electro-Hydraulic Actuator (EHA) |
| 10 | Throttle valve switch |
| 10 | Idle speed contact |
| 11 | Not used |
| 12 | EGR temperature sensor (California 420 & 560 series only) |
Factory Service Tools
Use the Manual With the Right Hardware
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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.