MFD binnacle issue

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  1. MFD binnacle issue 
    #1
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    Hi all busy night for posting!!

    The top part of my MFD keeps flickering and going out, the rest of the display is fine it is just the top part that shows the milage etc.

    I have looked at a lot of posts about cleaning the display but none really address the issue I have. I am thinking that obviously there is a loose connection in there but I have also read that there may be an issue with pressure on the screen if any of the mounts are loose.

    Any ideas?

    Cheers
    Si
    01 E38 735i
    18" alloys
    PRINS LPG Conversion
     
     

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    shall see if I can find anything on it
     
     

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    Found this.

    The MID is a weak point according to all that I have read online. It doesn't look like the pixels themselves fail, but the connection between the board and the display inside the unit, which is a ribbon cable with (probably a couple hundred) tiny connections. I suspect oxidation (not good here in the damp UK!) makes it go intermittent...

    If you do a 'search and you're prepared to get into it, a very narrow strip of sprung steel holds the contacts of the ribbon to the display. Removing and replacing it can bring some back, but results are variable. If you do, check you are happy with the results before you refit the unit - its fiddly.

    I'd be wary of going any further with the ribbon - such as removing it to clean - its very fine and could easily end up worse than you start out.
     
     

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    Instructions for removal and cleaning of MID (multi information display centre)(the in dash unit containing the speedometer and tachometer) to restore pixels.

    1.Remove 2 screws above tach/speedo with a T10 torx driver.

    2.Pry out upper lip of housing with a flat blade screwdriver.

    3.Disconnect 3 wire harnesses in the back of the housing and slide assembly toward passenger side of vehicle. (Make sure steering wheel is down and telescoped fully)

    4.Place assembly face down on some type of soft towel and find and remove the wire harness going from the speedo/tach assembly to the module attached to the back. (Black plug at the top of assembly).

    5.Push button on the bottom of assembly and slide the module sideways to free it from the front assembly.

    6.Locate the five “X” type connectors holding the front onto the main housing. Twist these connectors slightly so they line up with the holes on the housing.

    7.Press the four clips (2 on top/2 on bottom) and slide the assembly out through the back of the assembly holding the front clear covering (that covers the faces of the gauges).

    8.Now lay the tach/speedo assembly face up on the towel and remove all of the torx screws on the face (about 8-10), this will NOT allow you to open the housing, but it will loosen it enough so you can get a spray nozzle into the circuit board under the cover.

    9.Spray any and all connections you with the contact cleaner (non-residue/quick drying/plastic safe). Quickly dry the connections with compressed air (be sure to hold can upright to prevent liquid from being expelled)

    10.Spray all holes and connectors and the connectors that plug back into the dash board. I also sprayed the actual connectors in the dash as well.

    11.Reassemble the entire unit and make sure it is DRY before reinstalling in the vehicle.

    It's worked for some, it should restore all of the pixels to 100% brightness.
     
     

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    Cheers ronnie I have seeen most of the cleaning threads and will probably do it as a last resort. I am looking to replace the steering wheel as it is pretty worn and the indicator computer stalks etc so will probably wait till I get those done. The wierd thing is that it is the whole of the odometer part of the MID not jsut a few pixels. Well once I get all the parts together I will take a look at the thing andd seee if there is anything obvious.
    Cheers
    Si
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    I get this on my work car ( the touring 325tds )

    A short sharp tap on the top of the dash does just the job for now.

    It affects every digit from the centre line upwards.
     
     

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    I have got the "sharp tap to the top of the dash modification" working extremely well at the moment feel like the Fonz in happy days Heyyyyyy
    01 E38 735i
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    Quote Originally Posted by sident1972 View Post
    I have got the "sharp tap to the top of the dash modification" working extremely well at the moment feel like the Fonz in happy days Heyyyyyy
    Henry Winkler! No copying his hair
     
     

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    well had the instrument cluster out last night and had a good poke around and have refitted it and all looks well all the rows light up and having been for a short drive down a bumpy lane nothing has gone out.
    Sweet.
    Si
    01 E38 735i
    18" alloys
    PRINS LPG Conversion
     
     

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