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View Full Version : 1995 E34 Onboard Computer



sunnydavid
06-25-2006, 04:48 PM
hi guys,

I was struggled by this problem for a long time. My onboard computer does not work. I went to the dealer to ask for help. They told me that I need a new one and also gave me a quote with the part number. The new one is quite expensive (£600 or so). So I searched for a used part on eBay. I was told by the seller that it was compatible with my car. His part number has four same digits as mine. (The seller checked the local BMW dealer about it with my part number and chassis number. They told him that it was compatible.) Thus, I decided to buy it. When I took it to my local BMW dealer for installation, they told me that it did not work for some reasons. They suggestion me buying a new one to secure it work. It confused me! I don't want to buy a new one. That is far more than what I could afford. What's the exact problems there? Onboard computer? or somewhere else?

Is there any skillful guys here having the similar experience? Help me out please! Or what kinds of suggestions or relevant information you think would be helpful for this situation? Many thanks in advance!

David

sunnydavid
06-25-2006, 05:11 PM
Sorry. I should as well include my part number, which would be helpful!

My car is 1995 E34 525i Auto SE Saloon. The part number BMW dealer gave me is 65 81 1 384 149. The part number for the one I bought on eBay is 65 81 8 351 055.

Thanks!

David

shogun
06-25-2006, 05:39 PM
There are BC's with and without code plug. If without you can built in the one. I only have info in German, try to translate it, in any case the pics will help.
http://www.gunnar525.de/screwings/bc4_umbau_codierstecker.pdf
How to install a BC in a car without OEM BC
http://www.gunnar525.de/screwings/bc4_einbau.pdf

Do not buy a new one, a used one will do for sure.
If you have probs, ask the chaps on the E32 board in the U.k., maybe someone lives near your place, they can help you
http://www.bmw7resource.co.uk/

Espen
06-25-2006, 11:03 PM
Hi, and welcome to the board.

You say it doesnt work, that dont tell me much.
Can you come up with some more details? Is the lcd just black? Do you get the PPPP message?