C55 Electrical Problem
Thread Starter
Super Member
Joined: Jan 2005
Posts: 731
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From: Houston
C55
C55 Electrical Problem
Hey yall! Need your help.
A month ago while driving, the cars electronics stopped working while I was driving (all gauges turned off, hvac non responsive, no turn signals, cant open windows/sunroof) which I attributed to the battery being old. I went to the dealership that day and purchased a new MB battery and plugged it in.
Fast forward, car is still having this problem. I will be driving for about 10 minutes then the same thing happens OR if the car has been off or sitting outside for a few hours and I crank the car on, none of the electronics work. I will recrank a few times then sometimes everything works again. ESP disabled will come up and a check engine will come on. After I shut the car off, ESP disabled and the check engine lights go away.
The only other problem I've had was that my dvd navigation stopped working all of a sudden as well (around the same time). It wouldn't read my disc, so I ejected the disc and it wouldnt auto load, and I accidently jammed it back in bc I'm an idiot.
Based on forum searching, some common problems are the voltage regulator and the radio. Any other ideas? I want to know what I'm getting into before I go. Time to ditch and get a corolla?
A month ago while driving, the cars electronics stopped working while I was driving (all gauges turned off, hvac non responsive, no turn signals, cant open windows/sunroof) which I attributed to the battery being old. I went to the dealership that day and purchased a new MB battery and plugged it in.
Fast forward, car is still having this problem. I will be driving for about 10 minutes then the same thing happens OR if the car has been off or sitting outside for a few hours and I crank the car on, none of the electronics work. I will recrank a few times then sometimes everything works again. ESP disabled will come up and a check engine will come on. After I shut the car off, ESP disabled and the check engine lights go away.
The only other problem I've had was that my dvd navigation stopped working all of a sudden as well (around the same time). It wouldn't read my disc, so I ejected the disc and it wouldnt auto load, and I accidently jammed it back in bc I'm an idiot.
Based on forum searching, some common problems are the voltage regulator and the radio. Any other ideas? I want to know what I'm getting into before I go. Time to ditch and get a corolla?
MBWorld Fanatic!
Joined: Mar 2004
Posts: 2,073
Likes: 27
From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
It may also be an issue with rear SAM. It controls a lot of electronics that you are reporting as malfunctioning. Was the car in a heavy rain recently or even some low level flooding situation?
Thread Starter
Super Member
Joined: Jan 2005
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From: Houston
C55
Member
Joined: Apr 2009
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From: On a couch
2006 C55
When you say fast forward, how long has it been? My car was having the same issue and it was the battery, It would always start strong after sitting, but restarting it after a decent drive was a struggle. I would have to turn it off and crank it again to get the electronics to work.
Maybe something is killing the battery?
Maybe something is killing the battery?
Thread Starter
Super Member
Joined: Jan 2005
Posts: 731
Likes: 0
From: Houston
C55
When you say fast forward, how long has it been? My car was having the same issue and it was the battery, It would always start strong after sitting, but restarting it after a decent drive was a struggle. I would have to turn it off and crank it again to get the electronics to work.
Maybe something is killing the battery?
Maybe something is killing the battery?
MBWorld Fanatic!
Joined: Mar 2004
Posts: 2,073
Likes: 27
From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
You can monitor your voltage by following steps below.
1. Insert key into ignition, switch to position “1“.
2. Press the appropriate buttons until the mileage is displayed within the Multifunction display.
3. Press cluster illumination button (1) 3 times in short succession. The display should be showing the battery voltage now.
Monitor the voltage before the start, during the start and after the start. And of course when the electronics fail to function (if it will still be displaying the voltage). Let us know the results.
1. Insert key into ignition, switch to position “1“.
2. Press the appropriate buttons until the mileage is displayed within the Multifunction display.
3. Press cluster illumination button (1) 3 times in short succession. The display should be showing the battery voltage now.
Monitor the voltage before the start, during the start and after the start. And of course when the electronics fail to function (if it will still be displaying the voltage). Let us know the results.
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Thread Starter
Super Member
Joined: Jan 2005
Posts: 731
Likes: 0
From: Houston
C55
You can monitor your voltage by following steps below.
1. Insert key into ignition, switch to position “1“.
2. Press the appropriate buttons until the mileage is displayed within the Multifunction display.
3. Press cluster illumination button (1) 3 times in short succession. The display should be showing the battery voltage now.
Monitor the voltage before the start, during the start and after the start. And of course when the electronics fail to function (if it will still be displaying the voltage). Let us know the results.
1. Insert key into ignition, switch to position “1“.
2. Press the appropriate buttons until the mileage is displayed within the Multifunction display.
3. Press cluster illumination button (1) 3 times in short succession. The display should be showing the battery voltage now.
Monitor the voltage before the start, during the start and after the start. And of course when the electronics fail to function (if it will still be displaying the voltage). Let us know the results.
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MBWorld Fanatic!
Joined: Mar 2004
Posts: 2,073
Likes: 27
From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
Follow the instructions in this document: https://mbworld.org/forums/attachmen...ator-guide.pdf
Thread Starter
Super Member
Joined: Jan 2005
Posts: 731
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From: Houston
C55
13.4~13.5V under load.
Drove it quite a bit last night, no errors or issues thus far.
50~70mph highway runs, lights, a/c 3/4 speed, radio on.
I also change the keyfob batteries as well.
Drove it quite a bit last night, no errors or issues thus far.
50~70mph highway runs, lights, a/c 3/4 speed, radio on.
I also change the keyfob batteries as well.
MBWorld Fanatic!
Joined: Mar 2004
Posts: 2,073
Likes: 27
From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
Let's hope it's a fluke. Otherwise, if voltage is fine and it happens again, check the ground like Viper said. Let's hope it I is not your rear SAM.
Thread Starter
Super Member
Joined: Jan 2005
Posts: 731
Likes: 0
From: Houston
C55
Then, on the way home like 10 minutes ago, the a/c went out. Not all of the electronics like last time. hahahaah. this car makes me giggle.
