ABS and ESP Currently Unavailable See Operator's Manual
Member
Joined: Oct 2017
Posts: 88
Likes: 10
C63S Coupe
Can confirm its Voltage that's causing ABS and power steering to go out for me .
Displayed voltage this morning dropped to 10.6V on crank/startup then goes up to 14.6/7, then during drive fluctuates between 12.9V and 13.1V. After 20km, dash lights up with EBD, ABS, ESP inoperative and run flat indicator inoperative. Power steering is gone. Turned the car off and on, all errors go away but come back as soon as I hit 20km/hr
I drove without ABS and power steering for 10 minutes, pulled over then restarted. This time voltage did not drop below 11V during start up. All errors on dash are gone and don't come back after exceeding 20km/hr.
If I leave the car overnight - issues return. Does this mean:
1. My new battery is faulty
2. Something wrong with alternator
3. Something is draining my battery causing low voltage overnight?
Displayed voltage this morning dropped to 10.6V on crank/startup then goes up to 14.6/7, then during drive fluctuates between 12.9V and 13.1V. After 20km, dash lights up with EBD, ABS, ESP inoperative and run flat indicator inoperative. Power steering is gone. Turned the car off and on, all errors go away but come back as soon as I hit 20km/hr
I drove without ABS and power steering for 10 minutes, pulled over then restarted. This time voltage did not drop below 11V during start up. All errors on dash are gone and don't come back after exceeding 20km/hr.
If I leave the car overnight - issues return. Does this mean:
1. My new battery is faulty
2. Something wrong with alternator
3. Something is draining my battery causing low voltage overnight?
Junior Member
Joined: Apr 2021
Posts: 38
Likes: 10
From: Nashville TN
2010 Mercedes-Benz C63 AMG
I had the same warning flash up. Scanner showed all wheel sensors were good, but ESC module at fault. cleared codes, same thing came back. Dealer changed out module under warranty, no problems since then, been 3 months.
Member
Joined: Jan 2020
Posts: 211
Likes: 104
E63s
Can confirm its Voltage that's causing ABS and power steering to go out for me .
Displayed voltage this morning dropped to 10.6V on crank/startup then goes up to 14.6/7, then during drive fluctuates between 12.9V and 13.1V. After 20km, dash lights up with EBD, ABS, ESP inoperative and run flat indicator inoperative. Power steering is gone. Turned the car off and on, all errors go away but come back as soon as I hit 20km/hr
I drove without ABS and power steering for 10 minutes, pulled over then restarted. This time voltage did not drop below 11V during start up. All errors on dash are gone and don't come back after exceeding 20km/hr.
If I leave the car overnight - issues return. Does this mean:
1. My new battery is faulty
2. Something wrong with alternator
3. Something is draining my battery causing low voltage overnight?
Displayed voltage this morning dropped to 10.6V on crank/startup then goes up to 14.6/7, then during drive fluctuates between 12.9V and 13.1V. After 20km, dash lights up with EBD, ABS, ESP inoperative and run flat indicator inoperative. Power steering is gone. Turned the car off and on, all errors go away but come back as soon as I hit 20km/hr
I drove without ABS and power steering for 10 minutes, pulled over then restarted. This time voltage did not drop below 11V during start up. All errors on dash are gone and don't come back after exceeding 20km/hr.
If I leave the car overnight - issues return. Does this mean:
1. My new battery is faulty
2. Something wrong with alternator
3. Something is draining my battery causing low voltage overnight?
