Rear spoiler wiring route

Discussion in 'Mk3' started by paulm2322, Oct 6, 2021.

  1. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    Hi,

    I’ve just bought an oem rear spoiler with 3rd brake light. The spoiler is the same as the one on the car at the moment (three bolts through window).

    My question is does anyone know how to route the cable from outside to inside? Will I need to drill paintwork or try and make hole in glass?

    Any help much appreciated,

    Thanks,

    Paul
     

    Attached Files:

  2. rubjonny

    rubjonny Administrator Staff Member Admin

    Joined:
    Oct 31, 2003
    Likes Received:
    3,327
    Location:
    Bracknell
    theres an extra hole in the glass, not really viable to drill it yourself would have to take it to a specialist. tried to find a pic of the 4 hole glass but got nothing sorry
     
    paulm2322 likes this.
  3. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    Thanks John,

    mill have a good look for 4th hole when I take old spoiler off.

    cheers.
     
  4. rubjonny

    rubjonny Administrator Staff Member Admin

    Joined:
    Oct 31, 2003
    Likes Received:
    3,327
    Location:
    Bracknell
    your screen will have 3 holes, 4th is on the 91-92 US spec only
     
  5. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    That’s a shame. Looks like I’ll have to drill the boot lid.

    cheers
     
  6. rubjonny

    rubjonny Administrator Staff Member Admin

    Joined:
    Oct 31, 2003
    Likes Received:
    3,327
    Location:
    Bracknell
    wonder if theres scope to replace one of the studs with a hollow threaded thingy of some kind...
     
    paulm2322 likes this.
  7. PhilRyder

    PhilRyder Paid Member Paid Member

    Joined:
    Oct 17, 2020
    Likes Received:
    807
    Location:
    Surrey
    paulm2322 likes this.
  8. dragonfly

    dragonfly Paid Member Paid Member

    Joined:
    Jul 31, 2009
    Likes Received:
    225
    Location:
    Birmingham
    On my mk2 - I fed the wiring through the middle hole, then covered with a webbing sleeve. Either use a small grommet or silicon to stop any water leaking through. Routed the wiring along the upper roof trim and down the side to the bulb holder.
     
  9. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    Thanks everyone,

    The new oem spoiler has 3m tape as well as the 3 bolts. Surely if I omit the middle bolt it would still be secure? That’s a good tip DF.

    Thanks for the advice.

    Paul
     
  10. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    No idea how I would remove this bolt. Just had pliers on it hoping it would come loose but it’s not budging. Spoiler looks like it’s 2 pieces stuck together so not sure if I could unclip to get at the middle bolt:
     

    Attached Files:

  11. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    See where it looks like two parts.
     

    Attached Files:

  12. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    I’ve got a multi cutter with fine wood blade on it. Suppose I could carefully cut a square inch hole where middle bolt is and remove it that way?
     
  13. PhilRyder

    PhilRyder Paid Member Paid Member

    Joined:
    Oct 17, 2020
    Likes Received:
    807
    Location:
    Surrey
    It's likely to be a T bolt which will prevent it from turning or coming out. If you go to mad you could ruin the spoiler.
     
    paulm2322 likes this.
  14. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    That’s what I’m scared of doing [eek]
     
  15. PhilRyder

    PhilRyder Paid Member Paid Member

    Joined:
    Oct 17, 2020
    Likes Received:
    807
    Location:
    Surrey
    I'd be tempted to buy the correct drill bits and make a hole in the glass. Go slow with plenty of lubricant and you should be fine. New or second hand screens aren't much money.
     
  16. dodgy

    dodgy Paid Member Paid Member

    Joined:
    May 24, 2016
    Likes Received:
    1,004
    Aren't the rear screen toughened? Not sure can drill that, all holes need to be in before toughening as far as I know anyway.
     
    PhilRyder likes this.
  17. PhilRyder

    PhilRyder Paid Member Paid Member

    Joined:
    Oct 17, 2020
    Likes Received:
    807
    Location:
    Surrey
    Good point, well presented. Wouldn't stop me though :lol:
     
    dodgy likes this.
  18. dodgy

    dodgy Paid Member Paid Member

    Joined:
    May 24, 2016
    Likes Received:
    1,004
    If it was laminate it would be OK, such as a front screen with an airbag system in car.
    Used to be a hack (bodge) to stop cracks growing, drill a hole at the ends and fill with silicone.
     
  19. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    Safer option might be drill small hole in hatch. Treat with anti rust then silicone. Spoiler would then hide drill hole? Load of hassle for me if rear screen pops as I start drilling [:$]
     
  20. paulm2322

    paulm2322 Paid Member Paid Member

    Joined:
    Apr 13, 2015
    Likes Received:
    28
    Location:
    Liverpool, UK
    Sorted! Took plastic grommet out of hole and it has given me just enough space to tighten but without damaging cable! I will silicone the hole to waterproof when I’m done. I’ll post pic when it’s all finished.
     

    Attached Files:

    dodgy and PhilRyder like this.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice