engine and drivetrain 5 Speed Tranny Reverse Switch Problems

[felix_666]

I have doug through the archives but struggling to find a clear answer.

 

I have a 5 speed manual from an e21.

 

The terminals on the existing switch are loose, so I replaced the switch with a new 2002 one, no luck.

 

I've successfully tested both switches out of the car by connecting them and pressing the switch which actuates the lights perfectly. Although, each switch requires a different amount of displacement to engage the circuit.

 

I've read that there is a longer e21 switch which looks the same as the 02 switch.

 

Both my (2002) switches measure 21.5mm from the mating surface to the tip of the switch.

 

I have found two oem part numbers for switches but not sure of the difference.

 

BMW 23 14 1 354 071 BMW 61 31 1 352 153

 

Does anyone know of the longer e21 reverse switch?

 

Thanks

Edited September 9, 2013 by felix_666

[felix_666]

no takers?

[DavidLMM]

What was the reasoning behind putting an '02 switch into an E21 trans? They are different part numbers, and may have some internal differences like plunge depth, that make a difference. The correct switch is under $20, why not try one? A crush washer is part of the installation, and is likely critical to get to the design length.

 

David

[M3M3]

+1

get the switch that belongs in the tranny.

 

and check your light circut.  do you have 12v accross the wires that lead to the switch?

[rms_sandiego]

Your first part # (23141354071) is the correct Getrag 245 reverse light switch. It was used on a number of trannies through the E36 and is readily available.

[felix_666]

Your first part # (23141354071) is the correct Getrag 245 reverse light switch. It was used on a number of trannies through the E36 and is readily available.

 

Thank you, the answer i was looking for.

 

+1

get the switch that belongs in the tranny.

 

and check your light circut.  do you have 12v accross the wires that lead to the switch?

 

That's what I'm trying to do but couldn't find it on the etk. I simply couldn't find 245 page with the reverse switch in the diagram on the side of the tranny.

 

What was the reasoning behind putting an '02 switch into an E21 trans? They are different part numbers, and may have some internal differences like plunge depth, that make a difference. The correct switch is under $20, why not try one? A crush washer is part of the installation, and is likely critical to get to the design length.

 

David

 

Yes, hence the thread.

[felix_666]

Your first part # (23141354071) is the correct Getrag 245 reverse light switch. It was used on a number of trannies through the E36 and is readily available.

 

 

I went to realoem and punched 23141354071 into "search by part number". Then it lists all the cars that use this part, e12, e21 ....etc

 

When you click on e21, it doesn't display a link for the 245 box, just the 242 and 240.

 

Am i missing something?

[DavidLMM]

http://www.penskeparts.com/DiagramsMain.aspx?vid=47175&rnd=03192010

 

In the E21, the 240, 242, and 245 boxes appear to all use the 071 switch.

[felix_666]

which diagram number were you looking at, I can't seem to see a 245 diagram with the switch.

actually, is it diagram 23_0686

[tjones02]

Yup, that's it. Diagram #23_0686