For a while the digital display for the speedomneter would fade out. hitting the top of the dash fixed it for a while. Now the whole thing is dead.I suspect a cracked foil run on the curcuit board. Would be helpful if I had a pinout of the board connections.
the speedodmeter works but the fuel gauge doesnt
digital dash will not light up
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Nick, could not find a lot on this problem, possible loose ground to cluster. Check the attached links,
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Its a faulty instrument cluster...go to this youtube link to see one way to fix it... http://youtu.be/s1_FVOVj2ms "REPAIRING THE INSTRUMENT CLUSTER DISPLAY/ODOMETER"
There are other videos you can find on youtube as well. I found one that showed how to get the panel out in order to fix it and there were some videos that offered to repair it if you shipped it to them. I think they wanted to charge $200 so maybe you'll have luck fixing it using the link above.
The first thing to do is reach up (if possible) behind the cluster and make sure the plugs to it are fully inserted, push them in or remove and reinsert if possible to reach them. If that doesn't fix the problem the entire cluster must be removed and then sent out for repair to a shop that repair Chrysler electronics.
these displays ared l.c.d. displays and what happens is over time the vacuum pack on the crystal element ruptures and get air in the tube and that part of the display is ruined permanently.I'm not sure if your saying that there are pieces missing or if the whole display is blank. If there are peices missing the only way to fix it is to repkace the instrument cluster. If they are blank it is very likley it is either the backlighting bulb or the dimmer switch. If you take a blanket and cover your display and can see the display very dimmly try replacing your back lighting bulbs- hopefully it is just your backlighting because the clusters are about 1,000 dollars and have to be special ordered with your mileage engraved in the new unit.
no other way to solve it but replace it, sad thing is no second hand clusters available (in Manila). Purchase directly from your Mercedes Benz dealer. This will solve your problem, in a quite costly way.
It may be possible to get instrument cluster to do a self-test? If you want to try this to rule out instrument cluster.
Press and hold odometer reset button, turn key from off to run, run is where the dash lites come on. Any stored 3-digit codes will be displayed in the odometer vf display. The vf display will perform a sequential segment test. All indicators, data controlled, will illuminate. All gauges will cycle in 12.5% or 15% increments. The cluster will automatically exit self-test. The self test does not verify serial data stream. The cluster internally commands all non-hardwired gauges and indicators to operate. The fuel level sending unit sends info to pcm then pcm sends data to instrument cluster.
I don't know if that self-test will work on your vehicle? It won't hurt to try. If all the gages cycle except fuel gage, then I suspect the instrument cluster. You can call around different shops, get an estimate for the repair.
I had a problem with my instrument cluster on my 1999 dodge caravan went out. If you hit the top of your dash right above the cluster and it turns on or off then It is a cheep fix if you do it yourself. You take out the gauge cluster by removing screws from the door end of the dash. It is really simple. take out the gauge cluster and unplug it. Look at the plug end that is on the gauge cluster and look were it is soldered into the circuit board. If you look close you will see one or two pins where the solder joint or joints is/are cracked in a circle around the pin. Add some flux and apply heat with a stick type solder gun and it will be fixed. Now reassemble and you just saved 500 dollars minimum.
Don't throw away the dash yet!!! I had the same problem with my 93 S-10 Blazer. My son in law(who is a computer guru) took a look at and found several loose solder spots. He redid them and it has been working fine ever since. Check around for some one who would take a look at the soldering on the board and I am sure they can fix it right up. Good luck KS