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.
2001 Mercedes Benz CLK55FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Component Location |
|---|---|
| BAS Control Module | Below brake master cylinder. |
| Blower Regulator | Integrated into electric cooling fan, on engine side of radiator. |
| DAS Control Module | Behind instrument cluster. |
| Door Control Module (2) | In respective door. |
| Electronic Ignition Lock Control Module | On ignition switch. |
| Engine Control Module | At right rear corner of engine compartment. |
| ESA Control Module (Left Front) | Below left front seat. |
| ESA Control Module (Right Front) | Below right front seat. |
| ESP/SPS/BAS Control Module | At right front of engine compartment. See Figure. |
| Garage Door Opener Control Module | On left sun visor. |
| Headlight Range Adjustment Control Module | In front passenger footwell, under foot support. |
| Lower Control Field Control Module | Under center console, to left of shifter assembly. |
| Overhead Control Panel Control Module | At front of sliding/pop-up roof opening. |
| PSE Control Module | At right side of trunk. See Figure. |
| Signal Pickup & Activation Module (Left Front) | On bottom of driver side fuse & relay module box. |
| SRS Control Module | Under front of center floor console. |
| Transmission Control Module | In front passenger footwell, under foot support. |
| Ultrasonic PTS Control Module | In front passenger footwell, under foot support. |
| Upper Control Field Control Module | Behind center of dash, below air vents. |
| Xenon Headlight Control Module (2) | On respective headlight assembly. |
| Xenon Headlight Ignition Module (2) | On respective headlight assembly. |
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.