4wd, DSC, DSC

Brian86 · 07-31-2021, 08:29 PM

The details of what is and is not active in the different modes seems to be somewhat inconclusive, is there a final word on this some 10 years down the line from the last time it was talked about here?

Seems like:

Pre '08
DSC = full nanny, full stability, active e-diff
DTC = no nanny, no stability, active, e-diff
OFF = no nanny, no e-diff

Post '08
DSC = full nanny, full stability, active e-diff
DTC = no nanny, full/part stability, active e-diff
OFF = no nanny, no stability, active e-diff

In all conditions the T-case behaves the same way.

Sound about right?

Jeffman · 08-03-2021, 01:21 AM

Post ‘08 includes ‘08. That’s how it is on my ‘08 335xi AT.

e90yyc · 08-03-2021, 01:58 PM

I think so? I thought DTC still retained some stability control even on pre-08, but I just looked at technical docs and it was inconclusive.

Worth noting is that later models allow the use of cruise control with DTC mode, whereas earlier models (e.g., my 2007) do not.

Brian86 · 08-04-2021, 10:26 AM

On my '06 I can confirm that in DTC it will still pull throttle. I didn't notice any stability corrections but the ABS is so proactive in these cars that I think the line gets a little blurry.

Mine is a 325 x-drive so it's not really possible to test the e-diff.

07-31-2021, 08:29 PM	#1
Brian86 Captain 663 Rep 786 Posts Drives: e36 M3, e91 325xi, N50 Xterra Join Date: Dec 2020 Location: Pittsburgh iTrader: (0)	4wd, DSC, DSC The details of what is and is not active in the different modes seems to be somewhat inconclusive, is there a final word on this some 10 years down the line from the last time it was talked about here? Seems like: Pre '08 DSC = full nanny, full stability, active e-diff DTC = no nanny, no stability, active, e-diff OFF = no nanny, no e-diff Post '08 DSC = full nanny, full stability, active e-diff DTC = no nanny, full/part stability, active e-diff OFF = no nanny, no stability, active e-diff In all conditions the T-case behaves the same way. Sound about right? __________________ Sometimes a bolt is just a bolt.
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08-03-2021, 01:21 AM	#2
Jeffman Lieutenant 32 Rep 492 Posts Drives: 2008 335xi E90 Join Date: Jul 2010 Location: Somewhere in America iTrader: (1) Garage List 2008 335xi Sedan [0.00]	Post ‘08 includes ‘08. That’s how it is on my ‘08 335xi AT.
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08-03-2021, 01:58 PM	#3
e90yyc Art Collector 2512 Rep 3,513 Posts Drives: 2007 328xi (GM-delete 6MT) Join Date: Feb 2018 Location: Canada iTrader: (0)	I think so? I thought DTC still retained some stability control even on pre-08, but I just looked at technical docs and it was inconclusive. Worth noting is that later models allow the use of cruise control with DTC mode, whereas earlier models (e.g., my 2007) do not. __________________ When I'm dead, just throw me in the trash.
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08-04-2021, 10:26 AM	#4
Brian86 Captain 663 Rep 786 Posts Drives: e36 M3, e91 325xi, N50 Xterra Join Date: Dec 2020 Location: Pittsburgh iTrader: (0)	On my '06 I can confirm that in DTC it will still pull throttle. I didn't notice any stability corrections but the ABS is so proactive in these cars that I think the line gets a little blurry. Mine is a 325 x-drive so it's not really possible to test the e-diff. __________________ Sometimes a bolt is just a bolt.
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