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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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    Location:
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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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    London UK
    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.
     
    daibevan and matthew k like this.
  4. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280 3.0, Land Rover 110 County SW
    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
     
    matthew k likes this.
  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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    Your Mercedes:
    E220/2009/Diesel
    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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    Your Mercedes:
    '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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    Your Mercedes:
    w211 cdi
    Would love mine to randomly start working again. Have checked and tried everything.
     

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