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Where is the boot light switch?

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by Allen, Sep 23, 2010.

  1. Allen
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    Allen Member

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    My boot light in my Avant wont come on when I open the boot. Works fine on the manual switch.

    Cant find another switch for it?
    #1
  2. Widemonkeys
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    Widemonkeys 1st Gear

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    Is it set in the middle position?
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  3. Allen
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    Allen Member

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    Yeah, I've tried all the positions? The one on the the actual boot lid doesn't come on either?
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  4. Widemonkeys
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    Widemonkeys 1st Gear

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    Iv just had to replace the bulb on the one on bootlid cos bulb had blown. Do the other lights work fine? Cos it could Just be the bulbs in both
    #4
  5. Shane-Ireland
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    Shane-Ireland Member

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    Same here,when i open the boot the light doesn't come on but maybe 30 seconds or so later it comes on?? never noticed if the light in the actual tailgate worked.
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  6. scott b
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    scott b Active Member

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    i think the switch is attached to the actually locking mechinism
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  7. Shane-Ireland
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    Shane-Ireland Member

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    Sometimes when i close the boot it doesn't engage right first time,it shuts but there is a little play in it and i have to re shut, maybe the lock is on the way out.
    #7
  8. Mr Singh
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    Mr Singh Member

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    Have the same problem also with my main interior light up front, not even the dome lights work :(
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  9. Allen
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    Allen Member

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    Lamp in the tail gate looks fine. Should that one come on when you turn the other one on manually?
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  10. Widemonkeys
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    Widemonkeys 1st Gear

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    iv noticed the one in the tailgate comes on after the car has been running and you open the boot when the ignitionis off
    #10
  11. murran
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    murran Active Member

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    theres a micro switch in the tailgate catch on the boot lid.

    on avants its quite common as the washer jet pipe leaks water on to it....
    #11
  12. Mr Singh
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    Mr Singh Member

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    Sounds like thats my problem!!

    Anyone know what is involved it repairing it? OR what part needs to be replaced?
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  13. murran
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    murran Active Member

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    cant replace the switch separately. from memory a new catch unit is around £35.
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  14. Allen
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    Allen Member

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    Will investigate what sort of switch it is and might be able to "borrow" one from work
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  15. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    Grab some pics if you do, it would be good to know.
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  16. Mr Singh
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    Mr Singh Member

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    Did you have any luck with this mate?

    Cheers.
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  17. Mr Singh
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    Mr Singh Member

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    Can anyone confirm if I would require a new latch? Doing my nut not having lights work at night, got a baby on the way and dont need the agro of not being able to see anything at night :(
    #17
  18. Garfie
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    Garfie Member

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    Best bet would be to ask the stealer if the microswitch is available separately. In my Mk4 Golf it wasnt and the whole lock mech had to be replaced.

    The leaking rear washer pipe is a common problem on the Mk4 and it leaks right onto the microswitch making that fail. When I got my A4 Avant I thought I'd check it too even though I wasnt aware of it being such a problem on the avant. Sure enough (after I struggled to get the boot liner off) the rear washer was dripping onto the lock mech. Fingers crossed I saved it in time though as I have had no problem with the boot light, car locking itself again after just the boot being opened or the alarm randomly going off, all of which are symptoms on the Mk4.
    #18
  19. Mr Singh
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    Mr Singh Member

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    I will give them a bell in the morning worth a try, will let you know how I get on
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  20. Edembers
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    Edembers New Member

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    I've just had mine off and it is a standard (small) microswitch BUT with an Audi connection mounted behind it and soldered on, and resin around the soldered connections. It is then mounted in a plastic frame, which has to hold it firm, and this cannot be removed without breaking it then gluing it in afterwards perhaps, or else by drilling rivets to take the whole lock apart. Mine looks OK though, no sign of water damage, so I have sprayed some WD40 into it (with a straw) and will see how long it lasts.
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  21. Edembers
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    Edembers New Member

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    Take the bottom inner trim off and adjust the catch, it is too far back. Mine was very difficult to close and has knocked the paint off the bottom edge of the door as it was hitting the bumper every time it was closed :( Quick job to adjust.
    #21

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