Cruise Control E34

[TWISM]

I've som questions about Cruise Control in a '92 E34 525iT with a M50B25

I'v the parts her with the numbers:

Cruise Control Computer 1: xx.xx.1.384.734
Cruise Control Computer 2: 65.75.1.388.907
Cruise Control motor: xx.xx.1.378.315

And offcourse the nessacery switches.

I also have the install manual, but when I look realoem.com for the parts, it shows 1 computer. The manual says 2 computers. The manual also talks about the connectors. I've got all connectors, BUT NOT the 1 in the electronic box on the righthand side.

Could anyone check if these numbers corrospond with the right computers?
Or tell me what parts they are?

[TWISM]

Well...

Still no Cruise Control...

I've found the connector. It is placed behind the left front-speaker.
But my luck is now that the connector doesn't fit the computer...

It seems that there are 2 computers.
1 from before 1992 and 1 from after 1992.
I need the new type...

When will it be my luck??

[DaCan23]

You are trying to add cruise control to your car? Does your car have traction control?

If this car never had cruise and doesnt have traction, I wouldnt think it is possible, as you might not have the 2nd throttle cable the system uses.

Sounds like a lot of work and $$, in 6 yrs I've used cruise maybe twice, but thats just me....

Well...

Still no Cruise Control...

I've found the connector. It is placed behind the left front-speaker.
But my luck is now that the connector doesn't fit the computer...

It seems that there are 2 computers.
1 from before 1992 and 1 from after 1992.
I need the new type...

When will it be my luck??

[TWISM]

You are trying to add cruise control to your car? Does your car have traction control?

If this car never had cruise and doesnt have traction, I wouldnt think it is possible, as you might not have the 2nd throttle cable the system uses.

Sounds like a lot of work and $$, in 6 yrs I've used cruise maybe twice, but thats just me....

It is possible and it doesn't cost that much. second hand cruisecontrol system with all the nessacery pieces costs around the $200,= (150 euro)

I had cruise control on my diesels and I used it allways!

So, I just have to look for the right computer...
All the other parts are allready installed, including the 2nd throttle cable.

[DaCan23]

You installed the 2nd throttle cable? How hard was it?, just curious if I had to ever replace one. Sounds like a DIY accomplishment, congrats.

It is possible and it doesn't cost that much. second hand cruisecontrol system with all the nessacery pieces costs around the $200,= (150 euro)

I had cruise control on my diesels and I used it allways!

So, I just have to look for the right computer...
All the other parts are allready installed, including the 2nd throttle cable.

[TWISM]

You installed the 2nd throttle cable? How hard was it?, just curious if I had to ever replace one. Sounds like a DIY accomplishment, congrats.

It ain't that hard. When you got all the right parts and you have an installation guide, it's quit easy!

For replacing the cable, it's not hard at all.
That will be just som clicks and a few screws and you're done.

When you have to replace a cable, just ask and you will see from all the tips jou get, it is really easy...

[Toeks]

I'm also trying to get cruise control into my 95 525. From what I've seen so far in my search there are indeed different brain units for pre and post '91 models. The bentley service manual also refers to 2 different units, the '91 "Behind RH front shock tower, in P93 E-box" and the '95 one "Below LH side of dash". (very dissapointingly my Bentley manual makes no other references to removing/installing the cruise control, is this so for all the Bentley manuals?). Where did you get your info and installation manual from? Is it a kit or did you get the parts second hand yourself?

[Toeks]

These are the part numbers (and prices) I got today from our local BMW dealer.

Control computer - 65-71-1-387-625 : $805
Actuator(motor) - 65-71-1-378-315 : $600

(I get the feeling these prices are insane, how do they compare?)

Hope they help somewhat.

[TWISM]

I'm also trying to get cruise control into my 95 525. From what I've seen so far in my search there are indeed different brain units for pre and post '91 models. The bentley service manual also refers to 2 different units, the '91 "Behind RH front shock tower, in P93 E-box" and the '95 one "Below LH side of dash". (very dissapointingly my Bentley manual makes no other references to removing/installing the cruise control, is this so for all the Bentley manuals?). Where did you get your info and installation manual from? Is it a kit or did you get the parts second hand yourself?

I got the set second hand myself.
Just look on E-bay or something like that.

The prices on the new cruisecontrol are insanly high.
If you search, you can find complete cruisecontrol sets (computer, motor, handle and clutch switch) around the $200 till $300 (€ 150 - €200)

I have EBA from BMW (these are installation guides on all options from BMW)
If you PM me e-mail, I will e-mail you the installation guide for cruise control.
It's around 3Mb.

Or you wait a while and I can show you pictures on how to install.
As soon as I get the right computer, I will make pictures on how to install.

[skr]

hmm, this could be something nice to do after all. In my case it's probably easier because i only need the computer module. As my injection pump is electronic driven (no throttle cable, i got a pedal position sensor) and i allso have the clutch switch i think it whouldn't be to dificult to do. I hope i'll find a diesel with cruise control at the wreckers somewere.