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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Apr-16-2018, 04:38:16 PM   #11
ClutchKickChris
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Default Re: S54 "clutch switch" confusion

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Originally Posted by Bert ///M3 View Post
Stumbled upon this.

I have no clutch switch wired to my DME in a E36 at all. Can I set K_SKRAFTS_Control to something else, ie 0 if I have no clutch switch at all? (Euro cars have no start interlock switch) default is 01

And what about E36 mode? I would think 0x6 and 0x8006 is correct for MSS54HP, but for regular MSS54, do I change both 0x6 and 0x4006? (Both default to 20)
Just as an FYI, there are 2 switches on the clutch, one at the top, one at the bottom. The one at the bottom is for USA start protection, the one at the top is used to tell the DME if the clutch is engaged or not.

I still haven't had a chance to wire the switch i and test, been pretty busy with other stuff. I did find a slight air leak for a hose on the air rail, tightened that up and they car has had less "starting off from a stop" issues, but still isn't 100% perfect.
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Old Mon, Apr-16-2018, 08:20:23 PM   #12
Bert ///M3
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Default Re: S54 "clutch switch" confusion

Mine is originally a ‘93 euro M3 car, it doesn’t have any switches on the clutch at all. I have the car wanting to stall when driving off sometimes but It think it’s more due to the sintered clutch. Just wondering if it can be improved upon
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Old Mon, Apr-16-2018, 08:55:13 PM   #13
ClutchKickChris
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Default Re: S54 "clutch switch" confusion

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Originally Posted by Bert ///M3 View Post
Mine is originally a Ď93 euro M3 car, it doesnít have any switches on the clutch at all. I have the car wanting to stall when driving off sometimes but It think itís more due to the sintered clutch. Just wondering if it can be improved upon
Is it at specific temperatures, like engine cold, warming up, hot?

Mine only does it 2-3 mins after a cold start. It hesitates and RPM's can drop fast. Once it's warm though the issue goes away.
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Old Mon, Apr-16-2018, 10:54:07 PM   #14
aznbo187
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Default Re: S54 "clutch switch" confusion

Sub'd for future reference.
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Old Tue, Apr-17-2018, 01:26:50 AM   #15
Bert ///M3
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Default Re: S54 "clutch switch" confusion

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Originally Posted by ClutchKickChris View Post
Is it at specific temperatures, like engine cold, warming up, hot?

Mine only does it 2-3 mins after a cold start. It hesitates and RPM's can drop fast. Once it's warm though the issue goes away.
No always. It just doesnít like the clutch bite I think it idles ok otherwise.
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Discussing S54 "clutch switch" confusion in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)