TCU reflashing for replacing turn signal stock???

spr · 03-31-2013, 12:43 PM

I took my car in for a list of little issues rattles etc. as it is just coming off factor warranty. I would have thought I would have received it back in a day or two. However, I'm told they need it longer as they can't get the TCU to code properly. There was nothing wrong with the TCU. They were replacing the turn signal stock due to rattles that I never experienced with it. I debated even taking it in. I sent an email of my concern in response to being told of the TCU issues. I'm really worried they did something to my car while there.

I had an AMG a few cars before that a dealer did something with the TCU and then it always had a problem thereafter and I had to lemon it out. Thus, I don't trust mechanics for anything. I love this car and the tranny was perfect when I took it in and am honestly scared shitless they fucked something up. Ideas? I've already documented everything in emails.

spr · 03-31-2013, 04:41 PM

Nothing????

M4Now! · 03-31-2013, 10:35 PM

Well...I understand you being concerned after the described AMG problem. But maybe they found something else, and as long as they can fully describe why they're working on the computer, it may work out better.

Don't sweat the problem until it actually happens?

Cheers - and good luck!

roddyc · 04-01-2013, 09:55 AM

I had my turn signal stalk replaced under warranty (for rattles as well) and they had to reflash the car to complete installation. They didn't specifically mention the TCU, but as I understand it, the dealership only has the capability to reflash all modules at once.

spr · 04-01-2013, 02:12 PM

Thanks. The service advisor called me today and tole me they were having issues as the combox was added and their computer thinks the car still has the mulf. Sounds like the tech missed this? She advised me they have to code the car for the steering angle sensor to talk to the turn signal. This also concerns me as I've read horror stories of tech's screwing this up the steering angle sensor. Ugh. I should not have taken the car in. The stalk wasn't even rattling!!!!!

03-31-2013, 12:43 PM	#1
spr Major 94 Rep 1,089 Posts Drives: F80 M3; e92 ESS650+ M3 Join Date: Nov 2008 Location: San Diego iTrader: (1)	TCU reflashing for replacing turn signal stock??? I took my car in for a list of little issues rattles etc. as it is just coming off factor warranty. I would have thought I would have received it back in a day or two. However, I'm told they need it longer as they can't get the TCU to code properly. There was nothing wrong with the TCU. They were replacing the turn signal stock due to rattles that I never experienced with it. I debated even taking it in. I sent an email of my concern in response to being told of the TCU issues. I'm really worried they did something to my car while there. I had an AMG a few cars before that a dealer did something with the TCU and then it always had a problem thereafter and I had to lemon it out. Thus, I don't trust mechanics for anything. I love this car and the tranny was perfect when I took it in and am honestly scared shitless they fucked something up. Ideas? I've already documented everything in emails.
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03-31-2013, 04:41 PM	#2
spr Major 94 Rep 1,089 Posts Drives: F80 M3; e92 ESS650+ M3 Join Date: Nov 2008 Location: San Diego iTrader: (1)	Nothing????
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03-31-2013, 10:35 PM	#3
M4Now! Captain 292 Rep 708 Posts Drives: MG / SO F83 Join Date: Sep 2011 Location: Texas iTrader: (0)	Well...I understand you being concerned after the described AMG problem. But maybe they found something else, and as long as they can fully describe why they're working on the computer, it may work out better. Don't sweat the problem until it actually happens? Cheers - and good luck! __________________ Bye bye E93 M3 - Hello F83 M4!
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04-01-2013, 09:55 AM	#4
roddyc Second Lieutenant 16 Rep 288 Posts Drives: 13 BMW M5 Join Date: Jul 2011 Location: Frisco, TX iTrader: (8)	I had my turn signal stalk replaced under warranty (for rattles as well) and they had to reflash the car to complete installation. They didn't specifically mention the TCU, but as I understand it, the dealership only has the capability to reflash all modules at once.
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04-01-2013, 02:12 PM	#5
spr Major 94 Rep 1,089 Posts Drives: F80 M3; e92 ESS650+ M3 Join Date: Nov 2008 Location: San Diego iTrader: (1)	Thanks. The service advisor called me today and tole me they were having issues as the combox was added and their computer thinks the car still has the mulf. Sounds like the tech missed this? She advised me they have to code the car for the steering angle sensor to talk to the turn signal. This also concerns me as I've read horror stories of tech's screwing this up the steering angle sensor. Ugh. I should not have taken the car in. The stalk wasn't even rattling!!!!!
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