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W211 Instrument Cluster Dead + headlights on??

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by jetjockey, Feb 18, 2014.

  1. Pete1970

    Pete1970 New Member

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    Your Mercedes:
    C220 cdi 2002
    Dead instrument cluster!!!

    I now have the same problem with my instrument cluster going dead.
    Can I solve it by simply replacing the whole cluster??
     
  2. uknokianut

    uknokianut New Member

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    Your Mercedes:
    W211 E320 CDI , 2006


    Did you replace your cluster ? Did it work ?

    Mine is doing the same as above but tried re-soldering the pins but it didn't work .
     
  3. Snow Mouse

    Snow Mouse Registered

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    Location:
    Narbonne, France
    Your Mercedes:
    2009 E320
    Hi folks. I have a 2009 W211 E320 cdi and had the same problem after a torrential rainstorm.
    The instrument cluster was dead as a dodo, car started, drove OK but the headlights stayed on, windows went up & down and central locking no problem.
    I checked the fuses, all had current, none blown.. When I lifted the bonnet/hood I found that some old leaves and dirt from the storm had clogged the drain in the centre (between the 2 wipers) and at each side.
    The water had run over the rubber seal that separates the engine compartment and over the surface of the fuse box on the left side, I opened it up and everything was perfectly dry.
    I then removed the cabin pollen filter on the right side and the filter housing/box, below it is the ECU unit.
    4 short cables come out of the ECU to a black plastic connecter plug. I could see where the wires from the ECU entered the black plug so I used a vacuum to suck away any moisture from where the wires entered the plug, I then reversed the vacuum hose and blew warm air onto the end of the plug. Then I sprayed it with WD40 and wiped off any excess, after leaving it for 30 mins I then applied PVC pipe repair sealant/glue to seal around and waterproof where the ECU wires entered the plug.
    I reassembled everything, cleaned the water drains and left it overnight.
    Next morning turned the key and BINGO ! The instruments began resetting, after 5 minutes I started the car and its run perfectly since.
    I can't guarantee that it will fix everyone's car as this was just my own experience.
    I hope it helps someone somewhere.
     
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  4. Blobcat

    Blobcat Moderator

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    Your Mercedes:
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    Hello and welcome
     
  5. matthew k

    matthew k Senior Member

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    2005 320 cdi Sport 7 seat estate
    I've got a horrible feeling this is going to happen to me next! I don't trust the W211!
     
  6. John Laidlaw

    John Laidlaw Senior Member

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    Welcome
     
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  7. Adamk12

    Adamk12 New Member

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    Your Mercedes:
    w211 cdi

    I know this is an old post but I have read almost every thread online to no avail, cluster is dead as a dodo. However many people have also been fortunate to get the cluster to fire back to life in various way. Could you explain how to power up the cluster once out of the car and what tools I would need?

    Thanks
     
  8. Kenneth Tan

    Kenneth Tan New Member

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    Your Mercedes:
    E220/2009/Diesel
    I hope some people are still interested in this question.
    Yesterday also my W211 E220 2009 instrument Cluster was dead.
    Had it parked at the airport for 5 days and after returning the instrument cluster was dead. Also Airco display.
    Checked the battery voltage 12,25V. Opened the airfilter for the second battery, but there was no Aux battery there. Some other device with cooling fins.

    Any suggestions?
    BTW, the clock had stopped at 10:44. The next morning the time on the clock was 12:03. Now, many hours later the time is 13:23... so the clock is creeping forward very slowly.


    Going to check Fuses 43 and 44 next.
     
  9. Kenneth Tan

    Kenneth Tan New Member

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    Fuses were good and this morning openiung the car door I saw that the dashboard is working again.

    People have mentioned that the grounding straps could be loose or corroded. What grounding straps could they mean?
     
  10. LostKiwi

    LostKiwi Senior Member

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    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    12.25v is very very low.
    A healthy battery will read 12.6v, a bad one 12.4 or less.
     
  11. Adamk12

    Adamk12 New Member

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    Would love mine to randomly start working again. Have checked and tried everything.
     
  12. Wessiderules

    Wessiderules New Registration

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    E class w212 face-lift 2015
    Hello Sir, please advise if this Is the filter on top of the battery you are talking about or inside the cabin above passenger footwell. I don't seem to get to this connector you have mentioned. Many thanks.
    Any pics would def. Help.
     
  13. Adamk12

    Adamk12 New Member

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    After reading every thread online about this common issue, I was almost at the point of sending the cluster off to and electronic expert as I had literally tried everything. I was fortunate enough to have another w211 E class so last thing I tried was to swap out the clusters in each car. In hindsight I should've tried this first but was convinced it was something simple. My cluster was dead as a dodo, it didn't work in the working car but the one in the working car worked fine in my car. I noticed my cluster upon opening it up had a lot of moisture/condensation. I left it in my house for a few days to dry out. I knew this would be a long shot but it was a long shot that worked. It sprung back to life straight away once I plugged it in and has worked since.

    Give it a try,

    hopefully this can help someone.
     
  14. LostKiwi

    LostKiwi Senior Member

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    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    Get yourself a dessicant bag and pop it by the cluster. Only £7 or so from Amazon.
     
  15. RustyTeapot

    RustyTeapot New Registration

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    Your Mercedes:
    2002 CLK270CDI
    Hi,

    I have the EXACT same problem like the OP, caused by the exact same sequence of events...Flat battery but dashboard was ok of course it wouldn't start, jump started from another car, dashboard dead with headlights on but switch at 0. Except mine is a 2002 CLK 270 cdi but I suppose very similar to the E class from that era. Checked the fuse seems ok, upon re-inserting it I could swear the dashboard or part of it flashed on for 0.1 second, certainly the parking brake light (kinda hard to miss) but that was that.

    Still waiting for my new battery (covid times etc.); meanwhile I had to jump start again - still no dashboard. Is there a way to do a 'hard reset' without taking out the whole cluster and doing the electrical shenanigans as I suspect it's messed up rather than screwed up and I don't want to turn it into an ornament by trying to fix it myself with my non existing skills.

    Thanks
     

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