E-Class (W211) 2003-2009

Red STOP Brake + CEL + ABS + limp home etc. w/replaced SBC module

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Old Feb 16, 2017 | 02:51 PM
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RA122925's Avatar
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Red STOP Brake + CEL + ABS + limp home etc. w/replaced SBC module

2005 E320 CDI. Got the SBC control module replaced under warranty in 2009 at 60,000 miles. Car now has 160,000 miles.

Got the Red STOP sign with (almost total) loss of braking power, plus limp-home mode. Took it to my indy mechanic who has all MB computer stuff; lots of codes but nothing to definitively point to SBC control module failure. He's commuted with it for about a week and a half and no failures, no codes, nothing.

What is my best option:

1. Replace SBC for $1,800 and hope that was the problem.
2. Take to MB dealer to see if they can find something that my indy can't.
3. Consider it a fluke and do nothing.
4. Something else.

Wife drives the car on the highway a lot so taking a chance on another failure is not an option.
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Old Feb 16, 2017 | 08:07 PM
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2006 E320 CDI
If it were mine, it would go to the dealer for diagnosis and repair or replacement. The SBC units have come down in price since 2009.

JMTC

John
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Old Feb 17, 2017 | 12:43 AM
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From: Merkville the galaxy of Stars
'99 CLK/05 E500 WAG
Recommend taking to your indie. However, if you search for SBC install there's a good write up a member did .....I wouldn't drive it, but pls be safe.
GL
2MERKS
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Old Feb 18, 2017 | 03:29 PM
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cMazara's Avatar
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w211 03'
How about changing the brake pedal switch just in case? Its just 20 usd

Weird that the indie shop couldn't get the code, if it's not current, then it's stored..
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