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

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.

RepairPal Verified
Average mileage: 127,278 (98,000–170,756)
3 model years affected: 1999, 2000, 2001
7 people reported this problem
4 people shared problem details
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.!
EVERYTHING GOING HAYWIRED
The module simply quit and I was told it would be very expensive to fix so I didn't fix it.
AC works some times so they jump wire it.now it stays on heat no matter where you put the swicth
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