Help, I just took my ML 320 1999 for the second time to the dealer because of the ABS, BAS/ESP lights being on all three at the same time.

The three lights all at once will go on intermittently usually accompanied by a humming, vibrating noise.

The dealer today installed a new control unit and a new air mass sensor, but the three lights still came on while driving home.

This dealership seems to know what they are doing, but I don't understand what the problem seems to be. Any suggestions?

The most common cause of this to date is the brake lamp switch.

There should be codes for any problem that would cause this many lights on the dash.

If you are not happy, tell the service manager.

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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS

I have the same problem on a 99 E430 but also the seat controls on the driver seat are not working nor the memories for this seat.Any suggestions?

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Jerry DC
99 E430 "Stock"