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R230 wet behind drivers seat

Discussion in 'Bodywork, Tyres, Wheels & Trim' started by Ewan, Sep 5, 2017.

  1. Ewan

    Ewan Senior Member

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    Hi ,

    Got a bit of leak behind the drivers seat . I think it's coming from the food joint behind or above the drivers seat . I've been reading the posts on this and I think there is a fix that Malcolm (miss him ) sorted . Has anyone got a copy of this fix please ?

    Cheers,
    Ewan
     
  2. Craiglxviii

    Craiglxviii Senior Member

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    Go into the DIY section and look up R230 roof leaks, there's a very extensive thread on the subject.
     
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  3. peterws1957

    peterws1957 Senior Member

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    Worth checking to see if the drain holes at the top of the A pillar are not blocked. Don't poke anything sharp and pointy down though- you run the risk of perforating the seals.
     
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  4. OP
    Ewan

    Ewan Senior Member

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    I've checked the boot drains either side of the rear window and the two drains below the window all are clear , I think it might be coming in from above the drivers seat where the top part of the roof meets the top of the c pillar ? I tried to find the fix in diy section , no luck , Spent a lot of time fixing the boot leak earlier in the year , bone dry now , only to find another leak behind drivers seat !
     
  5. peterws1957

    peterws1957 Senior Member

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    I had the same. The drivers side A pillar drain was blocked and once cleared the roof leak stopped.
     
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  6. OP
    Ewan

    Ewan Senior Member

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    Which drain is the A pillar ? I know of the 4 drains at the rear window ?
     
  7. peterws1957

    peterws1957 Senior Member

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    The A pillar is either side of the windscreen. The drains are at the top corners of the screen obviously only accessible when the roof is open. They drain through the door seal on the A pillar.
     
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  8. LostKiwi

    LostKiwi Senior Member

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  9. OP
    Ewan

    Ewan Senior Member

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    Hi thanks for the info . I've done all the rear seals c pillar , bottom of the rear screen , all dry in the boot . This leak seems to be coming in near the top of the c pillar and dripping down onto the rear storage box behind the drivers seat , bit worried as the fuse box is below it.
     
  10. peterws1957

    peterws1957 Senior Member

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    Try the MBOwners Club videos on You Tube - there are loads of them. There are numerous vids on how MB goes about identifying leaks in the roof and how they get sorted "officially". A good source of info albeit there are sometimes better ways of doing stuff as Malcolm (mhrip) often pointed out.
     
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  11. Submariner1

    Submariner1 Senior Member

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    A Very long shot ... basically just to exclude
    Does your car have the roof rack option?. They look like little rocker switches, painted with 2 little indent grooves . If you press them , it reveals the M6 thread for the roof rack to bolt into. Or press them closed when not using.

    One of my SL500s had a leak in this. The inside wasnt welded properly. Note there is no technical drain route from this .. they should be watertight.
    Took the MB MD 4 hours to find this leak, that then gets into the side hoops of the roof.

    Option was change the roof or flood with silicone sealant, press close and wipe off excess, latter worked a treat no more water leaks.
    But obviously you cant use the roof rack system ... that I never even tried so no loss.
     
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  12. flowrider99

    flowrider99 Senior Member

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    I bet that would look funny, a roof rack on an SL.
     
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  13. LostKiwi

    LostKiwi Senior Member

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    Try locking the roof partially open and treating the seals with silicone grease/gummiphlege/potion of choice to see if that softens the rubbers enough to make them seal again?
     
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  14. Wighty

    Wighty Senior Member

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    Another long shot , but it could be a possible Old Persons accident that has dripped through the back of the seat :D:D:D:D
     
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  15. OP
    Ewan

    Ewan Senior Member

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    Hi thanks for all input on this. I have used gummi pledge on all of the seals this summer and been checking the boot area after each time it's rained ! The girlfriend thinks I am obsessed, which I am of course as I drive an SL
    I'm still convinced the leak is above the drivers seat where the c pillar meets the roof above your head in the car.
     
  16. LostKiwi

    LostKiwi Senior Member

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    How does the seal look? Is it damaged or distorted or unbonding itself from the car?
     
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  17. OP
    Ewan

    Ewan Senior Member

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    I've had the roof open and looked at this area my self , they look ok but you never know with leaks . That was my thought that a seal has bovine mishaped in some way
     
  18. peterws1957

    peterws1957 Senior Member

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    If it's driving you that mad try doing what we did with a mates BMW years ago when it had an unidentifiable leak. Use a hose on the roof with someone sitting inside to establish if its a roof seal. On that one we finally used a smoke bomb (one not leaving a residue) after covering dash and everything important up . Smoke came out of a tiny distortion in the door seal which proved where the leak was.
     
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  19. Painter16

    Painter16 Senior Member

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    What a good idea
     
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  20. flowrider99

    flowrider99 Senior Member

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    You can buy the car safe smoke devices specifically for finding leaks.
     
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