Mercedes-Benz
ML430
10

"All Activity Module" May Cause Multiple Electrical Malfunctions on Mercedes-Benz ML430

Problem Description and Possible Solution

Various electrical problem may develop due to a failed "all activity module". Our technicians tell us that proper diagnoses is required to be sure any electrical faults are being caused by the failed module.

Problem Data
RepairPal Verified
Average mileage: 127,278 (98,000–170,756)
3 model years affected: 1999, 2000, 2001
10 people reported this problem
Comments
Viewing 1 - 4 of 4 comments
EVERYTHING GOING HAYWIRED
The module simply quit and I was told it would be very expensive to fix so I didn't fix it.
Entire electronic panel lights up. Returned to local Mercedes Benz Dealership. It took two-weeks to resolve problem, and the final cost $4,800. Now the door locks rapidly goes up and down; the keyless entry no longer works. The estimated repair cost for this annoyance was quoted as $1,500. No thanks, I'll live with the noise.!
AC works some times so they jump wire it.now it stays on heat no matter where you put the swicth