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Clutch Neutral Safety Switch on E24?

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Bellwoods
Posts: 5
Joined: Thu Jun 15, 2017 11:26 pm
Location: Ontario Canada

Clutch Neutral Safety Switch on E24?

Post by Bellwoods » Thu May 30, 2019 1:14 pm

Hello All

Can anyone tell me if a 1988 E24 (635csi) with manual transmission should have a neutral safety switch that prevents the car starting unless the clutch is depressed? I am trying to get my vehicle safety checked: One mechanic says this switch is defective another is telling me that there isn't one.

To add to the confusion, I do find a clutch switch (PN 61-31-8-360-421) that is described functioning to disconnect the cruise control when clutch is depressed - could that same switch also be for starting?

Thanks in advance.

brickwhite
Bigcoupe supporter
Posts: 706
Joined: Wed Sep 01, 2010 3:29 pm
Location: Jackson, MO USA

Re: Clutch Neutral Safety Switch on E24?

Post by brickwhite » Thu May 30, 2019 1:36 pm

Only the Auto had a Neutral Safety switch. Clutch pedal switch is for the Cruise control.

Time to find a better mechanic.
- 12 535i
- 92 325ic
- 88 535is
- 85 M635csi

tmoretta
Posts: 57
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Re: Clutch Neutral Safety Switch on E24?

Post by tmoretta » Fri May 31, 2019 6:04 pm

Could a malfunctioning clutch/cruise control switch cause the car to lose power intermittently when the cruise control is engaged? How do I test it?

brickwhite
Bigcoupe supporter
Posts: 706
Joined: Wed Sep 01, 2010 3:29 pm
Location: Jackson, MO USA

Re: Clutch Neutral Safety Switch on E24?

Post by brickwhite » Fri May 31, 2019 6:43 pm

The switch turns the cruise off when it is pushed. Cruise is a manual throttle pull process, when initiated.

I wouldn't think it would cause engine hesitation, I guess it could rev more or less.

I would check your Bell housing sensors and connections or fuel or vacuum leak.

But the said part is a $10 part replace it and see...

https://www.fcpeuro.com/products/bmw-cr ... 1318360421

There is also this switch PN-61311362809 make sure you have the correct one for your car. Not sure what year they changed to the plastic switch.

https://www.ecstuning.com/b-genuine-bmw ... 311362809/ Ouch $50..

Also with Cruise issues you can check your speed sensor in the diff...

http://www.mye28.com/viewtopic.php?t=97858
- 12 535i
- 92 325ic
- 88 535is
- 85 M635csi

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