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.
1999 Mercedes Benz ML430FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| Acoustimass Bass Module | Under driver's seat. See Figure . |
| All Activity Module (AAM) | In left side of engine compartment, in "E" box. See Figure . |
| ASR/ETS/ESP Hydraulic Unit | In left side of engine compartment, below washer bottle. |
| ATA Control Module | At right rear of engine compartment. |
| Engine Control Module (ME-SFI) | In left side of engine compartment, in "E" box. See Figure . |
| ESP/SPS/BAS Control Module | In left side of engine compartment, in "E" box. |
| ETC Control Module | Behind center of dash. See Figure . |
| MB-Immobilizer Control Module | In top right side of steering column. See Figure . |
| SRS Control Module | Below front of center console. See Figure . |
| Traction System Control Module | In left side of engine compartment in "E" box. See Figure . |
| Trailer Turn Signal Control Module | Integral to trailer harness. |
| Transfer Case Control Module | Below center console, behind shift assembly. See Figure . |
| Trip Computer Control Module | In front of roof. |
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.