On board computer

If the connector on the back is the same, then I believe they can be swapped. But you can check if the part numbers are the same on http://www.realoem.com by entering the last 7 digits of your two cars' VIN numbers.

E36 MIDs do not work in an E31.
They look the same upfront but are not. No dice.
Cheers
Reinhard

There is a company that now sell the ribboncable that is the root cause of the pixelfailures for many BMW.

They also have the ribbon cable for E31 OBC
I just ordered one and got it yesterday, will try and replace it and see hove it turns out, but think this has a chance to work well.

Tricky here is to place the ribboncable correct as well as clean display and pcb before mounting ( came with instructions )
I can scan them and upload here if you give me a day.

http://pixelfix.net/eng/bmw.html

Regards
Terje

Her's the instruction scanned

Have a few comment's it says NO Soldering needed but thats not the case.
On mine i had to desolder three pins going to the Frame where the light bulbs are.

Secound It's wery tricky to place the ribboncable correct ( I failed on first attemt ) and had not pulled it apart yet to try again.

Will give you an Update on hove it goes

Very interesting I am sure a lot of us will buy this once you have feedback on the process

I recently purchased the OBC repair on Ebay for about $158. I received the unit back in less than a week, installed the unit and it works perfect. I believe the replaced the bad connection that causes in the pixel deterioration.

Who did you use?

Zitat von huldra66;80635

Secound It's wery tricky to place the ribboncable correct ( I failed on first attemt ) and had not pulled it apart yet to try again.

Will give you an Update on hove it goes

Hi,
any update yet?

I got the ribbon cable for my X5 MID and failed too. I tried it seven times and always didn't get all pixels to work. I noticed that the ribbon cable that I received is a bit smaller than the pinout on the LCD and board. I tried everything (as mentioned in supplied instructions) to match them up but it looks like the ribbon cable is going back to its initial size (a bit shorter) after I put everything together and in the end some pixels still don't work.

Don't think it is an easy job!

firebird

Zitat von firebird;82503

Hi,
any update yet?

I got the ribbon cable for my X5 MID and failed too. I tried it seven times and always didn't get all pixels to work. I noticed that the ribbon cable that I received is a bit smaller than the pinout on the LCD and board. I tried everything (as mentioned in supplied instructions) to match them up but it looks like the ribbon cable is going back to its initial size (a bit shorter) after I put everything together and in the end some pixels still don't work.

Don't think it is an easy job!

firebird

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Tried again and no go I'm afraid

But I think that I damaged the display during the process of cleaning debries from the old ribbon cable.

If I try again then I would leve the debries there and try without to see if that's work ( can always try clening as a last try )

But no it's not an easy job , think I would recommend sending it for repair or do as I did buy a new.
Just tried since I had the old one there from before.

Regrards
Terje

Zitat von huldra66;82507

Tried again and no go I'm afraid

But I think that I damaged the display during the process of cleaning debries from the old ribbon cable.

If I try again then I would leve the debries there and try without to see if that's work ( can always try clening as a last try )

But no it's not an easy job , think I would recommend sending it for repair or do as I did buy a new.
Just tried since I had the old one there from before.

Regrards
Terje

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Hi,
how did you remove the debris from the old ribbon on the LCD panel? It looked to me very tuff - and I did it in warm temperature?
On the board side it was tuff too but there is almost no risk to damage the circuit lines but LCD side looks like it is very tricky.

I don't know if heating up before removing the old ribbon cable from LCD is a good idea since I don't know how much temperature the LCD can handle without taking damage.

firebird

Zitat von firebird;82558

Hi,
how did you remove the debris from the old ribbon on the LCD panel? It looked to me very tuff - and I did it in warm temperature?
On the board side it was tuff to but there is almost no risk to damage the circuit lines but LCD side looks like it is very tricky.

I don't know if heating up before removing is a good idea since I don't know how much temperature the LCD can handle without taking damage.

firebird

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Removing from the board no problem as the board can take a lot of force,
I acytally used 800 sand paper and got the board nice and shiny on the contacts.

LCD was hard , i did use my fingernails mostly and also used a plastic scraper, but i it's very hard to remove and thisk that's killed the LCD.

For temperature , that's possibly a good trick ?? havent tried but could be the way to go.
try heating up to 50deg, that should be no problem ( dislpay will most likely be darker at this temp )
I use 50 deg to dry out moisture from damaged multimeter's with dislay without damaging them

Regards
Terje

Acetone/Qtips removes the GUNK. I wouldnt be sanding to hard....

Zitat von IcemanBHE;82599

Acetone/Qtips removes the GUNK. I wouldnt be sanding to hard....

I would not recommend Acetone/Qtips for removing the old debris from the LCD panel.

On the board side you may get away with it but I don't like acetone on an electric circuit board at all.

firebird

Wet the contacts....Qtip.

Not slosh it all around.