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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)

E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 09-27-2002, 11:03 PM
Ron Stygar's Avatar
Ron Stygar Ron Stygar is offline
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Lets cool it

What is the switch in the following pic going to do? Third one over with the silver dot.



This is a mod for my S54 engined car. If I had the Euro exhaust, I probably wouldn't be doing it.
The momentary switch has a guard around it. The center dot is available in black, red and silver based on the switches I have. Maybe others, once I check. Will go with blue if available or paint the center dot blue.
Prior to this switch being there, the position was occupied by my dual garage door opener switch.
I have John Firestone's controller in my car. One of its features is the skunk switch, second one over. It lets you open or close just the sunroof, open or close both windows, or open and close the sunroof and both windows. Based on this, I no longer had any use for the upper sunroof switch.
I decided to move the dual garage door opener switch up above. I replaced the old style sunroof switch with a new style one.
The new style switches have two detents. Pressing the switch to the first detent, puts whatever is on pin 4 of the switch to pin 1 or 2 of the switch, depending on which side of the switch you press. Pressing the switch to the second detent, puts whatever is on pin 4 to both pins.
Press the closed arrow switch (pointing left) to the first detent and the left garage door operates. Press the open arrow switch (pointing right) to the first detent and the right garage door operates. Press this switch to the second detent and both doors operate.
More to come.

Last edited by Ron Stygar; 09-28-2002 at 07:49 PM.
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  #2  
Old 09-27-2002, 11:25 PM
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Ron Stygar Ron Stygar is offline
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Forgot to mention

The method of this mod (which someone asked me to do) is for folks that don't have John's controller.
John's controller will eventually do this automatically.
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  #3  
Old 09-28-2002, 06:34 AM
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Randy Forbes Randy Forbes is offline
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Quote:
Lets cool it
Quote:
What is the switch in the following pic going to do?
Is this for what we talked about at HC?

I'm planning all my winter mods now...
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  #4  
Old 09-28-2002, 12:14 PM
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Ron Stygar Ron Stygar is offline
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Quote:
Originally posted by Randy Forbes


Is this for what we talked about at HC?

Yes. Built a timer kit which I might be installing tonight.

Last edited by Ron Stygar; 09-28-2002 at 07:48 PM.
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  #5  
Old 09-28-2002, 09:56 PM
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Ron Stygar Ron Stygar is offline
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Timer kit

Since the CATS are part of the headers on the NA S54 motor, it gets very hot under the hood. This mod is to cool it down after engine shut down, by running the auxiliary fan for a time after the car is shut down.
A console momentary switch will start it and a timer will shut it off after a specific time.
Normally the auxiliary fan is run at low speed with the AC on, or radiator temperature above 91 degrees C. Radiator temperature above 99 degrees C runs the fan at high speed.
This mod will also allow you to run the fan without AC on at low speed, with the car running, for the specified time.
The fan at low speed draws 4.5 amperes.
I purchased a timer kit from Quality Kits in CA (Canada). Kit number QK152. $17.53 delivered to CT.

www.gkits.com

The following pics show the kit info. You basically furnish the timer with a hot at all times line and pulse the counter in the kit (pin 11) with 12 volts to start it as shown in the pic.
John's controller will determine engine run time and automatically run the fan for a specific time on engine shut down, if the engine run time exceeds the specified time.
May also include the manual switch (run without AC), but with a shut off time controlled by you shutting off the switch.








Last edited by Ron Stygar; 09-28-2002 at 10:08 PM.
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  #6  
Old 09-29-2002, 10:16 PM
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Ron Stygar Ron Stygar is offline
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The following pic shows the wiring of the auxiliary fan.



I have a relay that I installed in the fuse box a while ago that is no longer being used. Based on this, I decided to use it to parallel the auxiliary fan normal speed relay K21 contact which is in the fuse box too.





The momentary switch on the console starts the timer which picks
the timer relay which picks the added relay in the fuse box. After the specified time, both relays deenergize.


Last edited by Ron Stygar; 09-30-2002 at 07:20 PM.
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  #7  
Old 10-02-2002, 08:43 PM
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Ron Stygar Ron Stygar is offline
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Re: Lets cool it

Quote:
Originally posted by Ron Stygar
What is the switch in the following pic going to do? Third one over with the silver dot.



The momentary switch has a guard around it. The center dot is available in black, red and silver based on the switches I have. Maybe others, once I check. Will go with blue if available or paint the center dot blue.
The switch shown is available with a blue dot from Mouser Electronics.
www.mouser.com
1-800-346-6873
Part number 107-1259BU $1.98 retail.
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  #8  
Old 10-16-2002, 09:49 PM
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Randy Forbes Randy Forbes is offline
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I assemlbed the timer kit today (bench tested OK) and the relay, base and wires/clips arrived yesterday.
I'll probably get some of the install done Saturday (not much time available and Sunday is season's last auto-x). Hope to get the underhood portion done this weekend.
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1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon
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  #9  
Old 10-17-2002, 02:05 PM
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Ron, I'd love to see a shot of your console with the trip computer in there, I've only seen it in that pic and not in the whole picture of the dash, do you have a pic?
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  #10  
Old 10-17-2002, 03:32 PM
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Randy Forbes Randy Forbes is offline
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Cool-it update:

New relay mounted in electrical box underhood and tied in parallel with K-21 (fan relay).

Circuit tested using the timer kit QK152 temporarily hooked up.

Considering mounting the timer inside the electrical box with a push button through the e/box wall (could only be activated when the hood is open; fine for in between auto-x runs).

Another HomeRun for the Stygar Team!
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Randy Forbes
1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon
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  #11  
Old 10-17-2002, 09:53 PM
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Ron Stygar Ron Stygar is offline
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Quote:
Originally posted by Rook
Ron, I'd love to see a shot of your console with the trip computer in there, I've only seen it in that pic and not in the whole picture of the dash, do you have a pic?

Last edited by Ron Stygar; 04-21-2009 at 04:35 PM.
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  #12  
Old 10-18-2002, 03:00 PM
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Ron Stygar Ron Stygar is offline
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Join Date: Mar 2002
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Tried running the auxiliary fan while driving the car today. Normally the fan will run, when running, if the AC is on etc..
With the mod, we can run it without AC on. Lowers the oil temperature 20 degrees F. or so. You can actually watch the needle move down.

Last edited by Ron Stygar; 10-18-2002 at 11:55 PM.
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