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SEC Water leak

Discussion in 'Bodywork, Tyres, Wheels & Trim' started by Steveobx909, Jan 21, 2020.

  1. Steveobx909

    Steveobx909 New Member

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    Your Mercedes:
    1990 Mercedes 500 SEC
    My beloved 1990 500 SEC has water in the rear driver side footwell and I've spent a lot of money trying to fix it. The sunroof has been replaced and the four water spouts are clear. There was a hole in behind the battery but that has been repaired. I can't see any windows leaking and the boot seems OK. The panel that usually rots is in good shape.

    Three different garages have had a go at this and failed. The car is rarely used and I don't think it's A/C or other hoses leaking.

    I am absolutely baffled and would be very grateful for any wisdom
     
  2. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280, Land Rover 110 County SW, 997 C2S
    What about under the rear windscreen rubber seal? Has it rusted under the seal letting water in?
     
  3. OP
    Steveobx909

    Steveobx909 New Member

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    Your Mercedes:
    1990 Mercedes 500 SEC
    That looks OK but I've just noticed the passenger side well in the boot is wet so it's getting in there somehow. How that could get into the driver side footwell I can't think
     
  4. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280, Land Rover 110 County SW, 997 C2S
    Water can track until it finds the lowest place, I'd be taking the rear seat out and look for evidence where if it's coming down from the back

    Have you lifted the rubber up all the way around the rear screen?
     
  5. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280, Land Rover 110 County SW, 997 C2S
    Here's a 500SEC from benzworld, note how much of the metal has rusted away from where the rear screen fitted...
    upload_2020-1-21_13-53-31.png

    Compare it to the repaired panel

    upload_2020-1-21_13-55-29.png
     
  6. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280, Land Rover 110 County SW, 997 C2S
  7. OP
    Steveobx909

    Steveobx909 New Member

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    Your Mercedes:
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    Thanks for that. It looks like I've got another pile of expense ahead
     
  8. Blobcat

    Blobcat Moderator

    Messages:
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    Joined:
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    Your Mercedes:
    R171 SLK280, Land Rover 110 County SW, 997 C2S
    500 SEC is a beautiful car and my first experience of Mercedes, from sitting in the drivers seat and trying to start the car not realising it was already running I decided that MB is where I wanted to be sat. Worth repairing as not that many left now unfortunately :(
     

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