W210 Alarm Module Location -
It is mounted on the exterior of the cabin, tucked behind the plastic fender liner in the trunk/cargo area. To access it, you generally need to remove the plastic trim panel on the right side of the trunk, peel back the wheel well liner, and look for a black plastic box mounted to the body of the car.
The W210 alarm siren is located behind the inner fender liner of the right front (passenger side) wheel well . w210 alarm module location
Unlike modern vehicles where control modules are often tucked neatly behind the glovebox or under the dash, the W210 alarm module location is somewhat unique. It is hidden in a place that protects it from the elements but makes it notoriously difficult to access for the novice mechanic. It is mounted on the exterior of the
If you came here looking for the to fix a no-start issue, you want the module in the passenger footwell (LHD) / driver footwell (RHD) . Check for water damage (leaky windshields ruin these modules). Unlike modern vehicles where control modules are often