TCU reprogramming

clairvoyant · 03-02-2011, 10:27 AM

I started to get the SOS Inactive Error. The dealer told me that they needed to "reprogram" the TCU which would not be covered under the warranty.. Does anybody here know what is involved with "reprogramming" the TCU? Thank You

DimSum · 03-02-2011, 10:58 PM

I have reprogrammed the TCU to the latest software revision, it takes about 30-45 minutes.

The SOS inactive error can be coded no problem without a full reprogram. Which only takes about 15-20 minutes.

clairvoyant · 03-03-2011, 09:10 AM

Can you point me on the how and what (tools involved, etc, etc)?
Perhaps, I can tap on your knowledge when I drive to GTA sometime this month.Thank You

Quote:

Originally Posted by DimSum

I have reprogrammed the TCU to the latest software revision, it takes about 30-45 minutes.

03-02-2011, 10:27 AM	#1
clairvoyant Major 79 Rep 1,032 Posts Drives: Bavarian Manure Wagon (BMW) Join Date: Oct 2007 Location: 45°19′20″N, 75°50′0″W iTrader: (5) Garage List 2007 335i [5.24]	TCU reprogramming I started to get the SOS Inactive Error. The dealer told me that they needed to "reprogram" the TCU which would not be covered under the warranty.. Does anybody here know what is involved with "reprogramming" the TCU? Thank You
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03-02-2011, 10:58 PM	#2
DimSum Banned 202 Rep 2,740 Posts Drives: SLOW Join Date: May 2008 Location: LITTLEBIMMER.COM iTrader: (10)	I have reprogrammed the TCU to the latest software revision, it takes about 30-45 minutes. The SOS inactive error can be coded no problem without a full reprogram. Which only takes about 15-20 minutes.
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