W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Introduction w211 E55 already an issue

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Old Oct 4, 2016 | 09:13 PM
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JUAN CASAUS's Avatar
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2005 E55 AMG
Introduction w211 E55 already an issue

Hello all, how was the previous owner of C32 which I sold a couple of years back and I just recently purchased a 2005 E55 and I have already run into my first issue. I am getting the battery voltage warning red screen and have changed out my voltage regulator and Main battery and my front battery test out at 12.6 volts. My alternator is only putting out 11.7 volts consistently when running. I'm thinking of changing that next. Does anyone have a Bosch alternator they're willing to sell? Also any input or Direction you can give me would be greatly appreciated. Thank you in advance!
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Old Oct 6, 2016 | 08:31 PM
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2004 E55
Originally Posted by JUAN CASAUS
Hello all, how was the previous owner of C32 which I sold a couple of years back and I just recently purchased a 2005 E55 and I have already run into my first issue. I am getting the battery voltage warning red screen and have changed out my voltage regulator and Main battery and my front battery test out at 12.6 volts. My alternator is only putting out 11.7 volts consistently when running. I'm thinking of changing that next. Does anyone have a Bosch alternator they're willing to sell? Also any input or Direction you can give me would be greatly appreciated. Thank you in advance!
https://mbworld.org/forums/w211-amg/...-workshop.html

Good intel in that one, lots more just with a little search bro, alternators usually do not die, it tends to be the $1xx.xx black plastic part with the electronic contacts on the back of the alternator right where the cables connect...sounds like yours needs to be replaced.


Eurocharged did a pretty baller write up on replacement with part numbers and such...

At this point it may be worth getting a SDS/DAS or just keep chucking parts sadly is what ur gonna do for the complete ownership of the car :-(

Just re-iterating SDS/DAS are great to have and money spent well
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Old Oct 8, 2016 | 10:19 AM
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JUAN CASAUS's Avatar
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From: New mexico
2005 E55 AMG
Originally Posted by BoostedAero
https://mbworld.org/forums/w211-amg/...-workshop.html

Good intel in that one, lots more just with a little search bro, alternators usually do not die, it tends to be the $1xx.xx black plastic part with the electronic contacts on the back of the alternator right where the cables connect...sounds like yours needs to be replaced.


Eurocharged did a pretty baller write up on replacement with part numbers and such...

At this point it may be worth getting a SDS/DAS or just keep chucking parts sadly is what ur gonna do for the complete ownership of the car :-(

Just re-iterating SDS/DAS are great to have and money spent well
Thank you for your response but as stated in my post I have already changed out the voltage regulator on the back of the alternator. I have done plenty of research but I was just seeing if anyone out there had any different response from the norm. I will look into getting an SDS/DAS.
Thanks again!
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Old Oct 8, 2016 | 11:52 AM
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Originally Posted by BoostedAero
https://mbworld.org/forums/w211-amg/...-workshop.html

Good intel in that one, lots more just with a little search bro, alternators usually do not die, it tends to be the $1xx.xx black plastic part with the electronic contacts on the back of the alternator right where the cables connect...sounds like yours needs to be replaced.


Eurocharged did a pretty baller write up on replacement with part numbers and such...

At this point it may be worth getting a SDS/DAS or just keep chucking parts sadly is what ur gonna do for the complete ownership of the car :-(

Just re-iterating SDS/DAS are great to have and money spent well
Way to try and make the OP look like a dunce in refering to the voltage regulator without reading what he posted. Your a clown. And a Star isn't going to throw a code "bad alternator" replace... lol...

OP. If your alternator isn't charging after idling for over a minute of start up, check output directly at the back of the alternator. If voltage is good coming out there I'd move to the battery control module in the truck / spare tire well area.
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Old Oct 8, 2016 | 01:51 PM
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From: New mexico
2005 E55 AMG
Originally Posted by 1ForcedBenz
Way to try and make the OP look like a dunce in refering to the voltage regulator without reading what he posted. Your a clown. And a Star isn't going to throw a code "bad alternator" replace... lol...

OP. If your alternator isn't charging after idling for over a minute of start up, check output directly at the back of the alternator. If voltage is good coming out there I'd move to the battery control module in the truck / spare tire well area.
Thank you! I'm checking the fuse right now and checking behind alternator will be my next stop. Appreciate the help!
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Old Oct 8, 2016 | 05:43 PM
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Originally Posted by JUAN CASAUS
Thank you! I'm checking the fuse right now and checking behind alternator will be my next stop. Appreciate the help!
And also don't listen to people that state facts like "the alternators never go bad" there experience is often based on just there own 1 vehicle, or the others who post on the forums. These alternators do fail and quite frequently. Hence why there are reman alternators available aftermarket and via the dealer. If the alternators never failed there wouldn't be remans... lol
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Old Oct 9, 2016 | 12:33 AM
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From: New mexico
2005 E55 AMG
Originally Posted by 1ForcedBenz
And also don't listen to people that state facts like "the alternators never go bad" there experience is often based on just there own 1 vehicle, or the others who post on the forums. These alternators do fail and quite frequently. Hence why there are reman alternators available aftermarket and via the dealer. If the alternators never failed there wouldn't be remans... lol
Lol yeah I've kind of figured as much. It's been awhile since I've been on the Forum and I'm new to the E55 but have read most of the other posts regarding this issue but I just wanted to reach out and see if there was anything new out there. I did check the fuse and the fuse is fine. How do you test the BCM? That's another part that I would like to check before I buy the alternator. Thanks again for the help!
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