Low voltage - Lose Radio, then HVAC, then Brakes - Page 2

12-03-2019 | 03:11 AM

#26

cetialpha5

MBWorld Fanatic!

Joined: Feb 2014

Posts: 6,155

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From: MA

2008 E350 4Matic, 2011 E350 4matic

Quote:

Originally Posted by jbeech

I'm going to save you some trouble. Replace the voltage regulator. Trust me. Oh, and because my 2004 had well over 100k miles, and against the advice of others, I just ponied up for a new alternator with new voltage regulator rather than deal with the alternator again in a few months to a year. Just saying new bearings, certainty about the fields, etc. was worth it to me..Anyway, do this and your mysterious message will stop.

For the M272 engine in the 2006, it's easier to just replace the alternator. You have to remove the alternator anyway to replace the regulator and it's about $180+ from Autozone for the reman Bosch alternator and that has a lifetime warranty. Even if you replace the regulator, the brushes or the bearings in the alternator could later go so you're not saving too much and you're just going to have additional problems with it later as other parts of the alternator go.

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