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Electronic Parking Brake Inoperative

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Old Dec 22, 2016 | 03:17 PM
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MBS430
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From: Portland, OR
S550 , S430
Question Electronic Parking Brake Inoperative
Hi fellow MBWorld,

I have 2008 S550.

When I started the car, I got
: "Parking Brake Inoperative", and a yellow PARK triangle warning at left corner of the dashboard display.

I pushed & pulled E-brake, nothing changed.

Then, I restarted the car, it worked fine. Seems like restarting the car released the parking brake.

Can anyone advise what might be the caused? thank you much in advance for your help!
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Old Dec 23, 2016 | 02:30 AM
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MBS430
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From: Portland, OR
S550 , S430
i will get the error code from odb2 reading,

the error is pretty consistent saying "turn on ignition to release the parking brake"


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Old Sep 14, 2017 | 07:01 PM
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MBS430
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From: Portland, OR
S550 , S430
Anyone has experience on how to service the electronic parking brake motor , part# 2214302849 ?
or where to buy a refurbished one?

Thank you


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Old Sep 16, 2017 | 09:47 AM
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Finer6527
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2007 Mercedes S550
Did a Google search and saw a few used ones on Ebay.
Also there is a YouTube video that has some info.
It was cool to see the part opened up and how it works when the person put power to it.
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