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W211 Airmatic issue sagging at the back

Discussion in 'Suspension, Steering & Brakes' started by Hillman, Dec 29, 2012.

  1. Hillman

    Hillman Senior Member

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    Hi All

    I have just had a star diagnostic done on a w211 270cdi with airmatic and I have a couple of issues indicated. The faults are:

    5260 Y54 (Right rear axle damper valve unit) Y54y1 (right rear solenoid valve 1) Open circuit

    5270 Y54 (Right rear axle damper valve unit) Y54y2 (right rear solenoid valve 2) Open circuit

    Does anyone know if I will need to replace the entire strut or are these units a replaceable item? If it is the strut how difficult are these to change?

    Thank you in advance for any assistance you can offer
     
  2. television

    television Always remembered RIP

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    Location:
    Daventry
    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    The Y54 is in the strut and part of it,,, now do not make the same mistake as me and just replace the strut for my problem was a poor connection in the control ECU and it could not find the Y54, so do just get some non drying switch cleaner and remove the multi plugs from the control ECU and spray them and re fit and try the car first
     
  3. OP
    Hillman

    Hillman Senior Member

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    Television

    Thank you for your reply. Where will I find the contolr ECU?

    Thanks

    Paul
     
  4. television

    television Always remembered RIP

    Messages:
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    Location:
    Daventry
    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    What you could do is to measure the sensor the other side and compare it with the other and a simple multimeter would do this just fine.

    I will look to see where it is on your car later in the day and if possible some connector details.
     
  5. MBNZ

    MBNZ New Registration

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    Location:
    Christchurch, New Zealand
    Your Mercedes:
    w211/2003
    I've had the same issue on my E320 CDI, the dealer checked the car and said it's the Control Module that needs to be changed.
    O'm looking at a used part as the brand new one from the dealer is quite expensive and they do not have them in stock, should it be a straight forward plug and play or does this need to be re programmed??
     

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