voltage regulator - Mercedes-Benz Forum

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post #1 of 8 (permalink) Old 05-16-2007, 02:54 PM Thread Starter
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voltage regulator

I was out recently and the electronics in my 2002 CLK 430 went berserk. The car finally stalled and would not start. I took out the battery, charged it and made it home barely. I would like to change the voltage regulator, but am having a difficult time finding one. Any ideas. I ordered one from import cars of america but they sent me the wrong one. The numbers on the regulator are BR14-MO-V14 F00M 145 247. Thanks for any help you can send my way. You can e-mail me at dougfenik@yahoo.com or post on the forum
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post #2 of 8 (permalink) Old 05-16-2007, 03:37 PM
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post #3 of 8 (permalink) Old 05-17-2007, 10:43 PM
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Please let us know how your searchw ent, I'm in the same boat.
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post #4 of 8 (permalink) Old 05-18-2007, 06:50 AM
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post #5 of 8 (permalink) Old 05-18-2007, 07:22 AM
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If you take your car to the dealer and have them run the VIN, you may find that your car is part of the voltage regulator recall. Mine, which is also a 2002 CLK430, was. It's a "voluntary" recall - meaning MBUSA is not going to send letters advising people to bring their cars in. If the car is at the dealer for service, and the SA runs the VIN (they typically do), the recall notice will appear. Parts and labor are free.
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post #6 of 8 (permalink) Old 05-31-2007, 06:22 PM
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Help!! Information needed


2 days ago we took our 2005 ML500 in for brake work. They also applied a service campaign while it was in there, replacing the voltage regulator.

Today, my wife was driving down the road and suddenly the dash lights all starting lighting up -- like 5 or 6 of them. The radio went dead and the car stalled. Luckily she was able to pull it into the driveway only a few feet away. The car now no longer starts.

I'm thinking its too big of a conincidence, but I'm not familiar with the task of a voltage regulator. And you know how the dealer can get defensive and not admit fault. So If anyone has any information out there to "arm myself" with before I go to the dealer tomorrow, I'd appreciate it.

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post #7 of 8 (permalink) Old 06-01-2007, 02:51 AM
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well it doesnt really matter whats wrong because if you have an 05 you are still under warranty assuming you are under 50,000 miles.
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post #8 of 8 (permalink) Old 06-01-2007, 07:24 AM
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A voltage regulator governs /controls the flow of electricity from the alternator. It can fail in such a manner as to cause the car to stop running.

Rather than viewing this as an adversarial encounter. I would call the dealership and have them arrange for the vehicle to be flatbeded back in for repairs. It may be that the new voltage regulator failed (which would not be the fault of the mechanic/service advisor/dealership – they only install what Mercedes-Benz supplies), or it could be any number of other issues. For example, if the battery shorts out internally, the car could fail in a similar fashion. Hopefully they’ll figure it out and return your car in a timely fashion.
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