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 SL55FACTORY OEM SERVICE PROCEDURE
Circuit Protection Devices
CIRCUIT PROTECTION DEVICES LOCATION
| Component | Location |
|---|---|
| Driver-Side Fuse & Relay Module (K40/2) | Left rear of engine compartment. See Figure. |
| Front Prefuse Box (F32) | Right front footwell. See Figure. |
| Passenger-Side Fuse & Relay Module (K40/4) | Right rear of engine compartment. See Figure. |
| Rear Fuse & Relay Module (K40/5) | Stowage compartment behind passenger seat. See Figure. |
| Rear Prefuse Box (F33) | Right side of trunk. See Figure. |
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.