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 CL55FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Splices
SPLICES LOCATION
| Component | Location |
|---|---|
| Z3 | Behind center of dash. |
| Z3/12 | Under front of floor console. |
| Z3/29z1 | Left side of engine. |
| Z3/29z2 | Front of engine. |
| Z4/1 | Right front of roof. |
| Z4/3 | Behind center of dash. |
| Z4/3z1 | Under front of floor console. |
| Z4/4 | Right front upper footwell. |
| Z5/1 | Under right front seat. |
| Z6 | Behind center of dash. |
| Z6/1z1 | Right side of trunk. |
| Z6/8 | Left rear of engine compartment. |
| Z6/16 | Behind center of dash. |
| Z6/30 | In right front door. |
| Z6/33z1 | Left front doorsill. |
| Z6/33z2 | Left front doorsill. |
| Z6/33z4 | Behind center of dash. |
| Z6/38 | Under front of floor console. |
| Z6/39 | Under front of floor console. |
| Z7/5 | Under right front seat. |
| Z7/19 | Under right rear seat. |
| Z7/21 | Under front of floor console. |
| Z7/32 | Under front of floor console. |
| Z7/35z1 | Left rear of engine. |
| Z7/35z2 | Front of engine. |
| Z7/36 | Left side of engine. |
| Z7/36z2 | Right rear of engine compartment. |
| Z7/38 | Rear of engine. |
| Z7/38z1 | Right side of engine. |
| Z7/38z2 | Left side of engine. |
| Z7/39 | Rear of engine. |
| Z7/41 | Right rear of engine. |
| Z7/43z1 | Right rear of engine. |
| Z7/43z2 | Right rear of engine. |
| Z7/49 | Under right front seat. |
| Z7/51 | Under front of floor console. |
| Z7/52 | Under front of floor console. |
| Z28/35 | Under right rear seat. |
| Z28/57 | Under right front seat. |
| Z28/62 | Under right front seat. |
| Z28/63 | Under right front seat. |
| Z36/3 | Behind right side of front bumper cover. |
| Z36/4 | Behind right side of front bumper cover. |
| Z36/8 | Under front of floor console. |
| Z37/2 | Left front doorsill. |
| Z37/3 | Left front doorsill. |
| Z37/8 | Under front of floor console. |
| Z37/13 | Under front of floor console. |
| Z37/14 | Under front of floor console. |
| Z52/5 | Under left front seat. |
| Z52/5z1 | Under front of floor console. |
| Z53/9 | Under right front seat. |
| Z81 | Above right sun visor. |
| Z81/4 | Left front doorsill. |
| Z107 | Right rear of engine hood. |
| Z108 | Right rear of engine hood. |
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.