Hi, All.

Not experiencing any problems with them, but as part of preventative maintenance I tried yesterday to check/clear the sunroof drain channels using strimmer cable as recommended on here.

From other posts I understood there are 4 drain channels. I found the two front ones but couldn't find any at the rear - are they hidden under the few centimetres of glass panel that remain visible when in the fully open position and if so how do people access them?

I also couldn't push the cable more than about 12cm down either of the front drains before it became stuck against something. No amount of twisting, prodding or wiggling would get it to go any further on either side.

Have I misunderstood the process or am I employing the wrong technique?

Any guidance from those who have done this successfully much appreciated.

Thanks 2012 TDV8 Westminster in the New Forest

Also: Land Rover Series 3 SWB, Mercedes 280SL, Classic Mini race replica, VW Golf SV
Previously: Audi A8, RR TDV8 Vogue, Audi Allroad, VW Golf GTI Edition 30, Audi A4 Avant, A8, A4 Sport, A6, VW Golf Mk5, Bora, Golf GTI Mk3, Jetta Mk3, Passat, Jetta Mk1, Golf Mk1

I haven't tried it yet but if there are drain holes to the rear could you not close the sunroof then tilt it so the rear lifts? You should then be able to access any rear drain holes through the gap? 1988 Classic 3.5 EFI in Green - GONE.
1993 Classic 3.9 Vogue SE in Green - GONE.
1997 P38 4.6 HSE in Blue - GONE.
2002 P38 4.6 Vogue in Black - GONE.
2007 L322 4.2 SC in Java Black.
2007 Audi TT 3.2 V6.
1988 Porsche 930 turbo.

Hi OP.

I had (have) the exact same issue.

I know mine are blocked but I cannot seem to get anything down the drains.

I've tried...

2 different types of strimmer wire
Some cat5 ethernet cable
Some narrow piping.
Some narrow pipeing with an air compressor
Some narrow piping with a wet vac

Nothing seems to work.

For the time being I have simply gorilla taped my sunroof closed and the leak has stopped.

I too would love some guidance, so here's a bump to your thread.

Watching with interest

I am the same as Shaun, I cannot find the rear holes!

Rear drains circled, not sure how you’d reach them without some level of dismantling however.

So, I know from other threads that people have successfully cleared the drain holes so just hoping one of them looks at this.

Perhaps we can try a different approach (literally!)... Would anyone be able to post some pics of where the 4 drain holes emerge on the bottom of the vehicle? Perhaps I can try inserting the strimmer cable from the other end?

I guess that runs the risk of potentially making any blockage that might exist worse but I'd really like to do something before the headlining starts to become stained etc.

Thanks again to anyone who can provide some guidance on this. 2012 TDV8 Westminster in the New Forest

Also: Land Rover Series 3 SWB, Mercedes 280SL, Classic Mini race replica, VW Golf SV
Previously: Audi A8, RR TDV8 Vogue, Audi Allroad, VW Golf GTI Edition 30, Audi A4 Avant, A8, A4 Sport, A6, VW Golf Mk5, Bora, Golf GTI Mk3, Jetta Mk3, Passat, Jetta Mk1, Golf Mk1

They emerge behind the wheel arch liner at the front of the REAR wheel.

I think I used some net curtain wire. Bendy but stiff.

Thanks. I'll take a look and try approaching that way  2012 TDV8 Westminster in the New Forest

Also: Land Rover Series 3 SWB, Mercedes 280SL, Classic Mini race replica, VW Golf SV
Previously: Audi A8, RR TDV8 Vogue, Audi Allroad, VW Golf GTI Edition 30, Audi A4 Avant, A8, A4 Sport, A6, VW Golf Mk5, Bora, Golf GTI Mk3, Jetta Mk3, Passat, Jetta Mk1, Golf Mk1

Presumably it's the REAR drain that emerges by the REAR wheel?

Yes. The front drains are approximately under the front doors

What about using a hoover at the rear drain exits, that might work sucking any crud out rather than risk pushing muck up ?