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Boot leak ml420 cdi

Discussion in 'General Discussion' started by Dirk u, Jun 29, 2016.

  1. Dirk u

    Dirk u New Member

    Messages:
    4
    Joined:
    May 7, 2016
    Hello all just notice I have a slight water leak lower boot on my w164 is this a common issue on this vehicle ? Anyone who can help in regards to a remedy would be much appreciated

    Best regards dirk
     
  2. bassbaboon

    bassbaboon New Member

    Messages:
    5
    Joined:
    Jan 6, 2017
    Car:
    ML420CDi
    Hi Dirk. I'm looking for the same answers as you. There are some threads on the forum but no definitive answers on how to address the issue, which is a known problem on the ML series which affects the rear Signal Acquisition Module.

    BB
     
  3. bassbaboon

    bassbaboon New Member

    Messages:
    5
    Joined:
    Jan 6, 2017
    Car:
    ML420CDi
  4. Vlad

    Vlad Hardcore MB Enthusiast

    Messages:
    2,391
    Joined:
    May 30, 2003
    Location:
    Reading, England
    Car:
    Various Mercs come and go
    Rear light unit's leak water due to poor seals.
     
  5. PaulG

    PaulG Hardcore MB Enthusiast

    Messages:
    723
    Joined:
    Dec 16, 2002
    Location:
    Epsom Downs
    Car:
    ML 320 W164
    Definately worth properly sealing both rear light clusters.

    They say to find the most efficient way of doing a job, ask a lazy person, so with this in mind, I asked myself!

    I concluded that a good scrub of the edges of the light clusters with an old toothbrush, followed with some black silicon seal (smoothed over with the traditional wet finger) gave a finish that was actually better than standard. More importantly, fixed my leak.

    The whole job took less than 5 minutes for both sides, with no disassembly required..
     
  6. WG M-B

    WG M-B Auhorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    1,892
    Joined:
    May 26, 2011
    Location:
    N/W london
    Car:
    C63 Wagon in black
    If you have an auto opening tailgate be careful the drive unit sat in the underside of the trunk hasn't got caked in water.
     
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