Hi, I'm new HELP interior lights fault

[tracy3108]

Hi, I have spent hours trawling the net for help and then I saw the light, briskoda it's great.

I recently purchased a second hand Superb, after one week the brake light bulb warning light on dash lights up and beeps yet the bulbs are fine?

And my main problem is the interior lights have stopped working, the map lights, door lights, glove box e.t.c ??? they are turned on and all the fuses are ok any ideas on what to look for, don't want to pay dealer prices.

Thankyou in advance for any help you can give.

Hope my post's ok, i'm a newbie!

Phil

[Lummox]

I would take a guess that despite the interior lights not working the rear map lights in the handles do?

I would think that you have a water leak. It has run under the capets and got into the n/s/r footwell. There is a link in the wiring loom there, something called a 'node' joint. A group of wires crimped together and heat shrunk. The water will have rotted out this connection stopping the lights working.

You need to source and fix the water leak and repair the joint.

[tracy3108]

Thankyou for such a quick reply, really appreciated, any clues how to access the loom?

[Lummox]

The carpet needs to come up, need to remove the sill trims etc .

Will probably need most of the interior removing to dry out if its leaked that bad though.

[tracy3108]

Gutted, only had the car two weeks!!!

Is this caused by rain water leak sort of thing?

[Lummox]

Yes usually, but can also be a poorly fitted or blocked AC drain.

[mdk1]

Originally Posted by tracy3108

Gutted, only had the car two weeks!!!

Is this caused by rain water leak sort of thing?

Have you got a warrenty with it,
is so get it fixed under warrenty.

[landwomble]

just had this done on mine.
1) new seal around pollen filter to stop leak - clear out crap in channels whilst at this, and also check drainage holes in rear doors
2) new carpet as old one soggy and might go mouldy - i wasn't too bothered, but dealer suggested it under warranty
3) new convenience unit - controls electronics, located under passenger front seat - soaked and knackered
4) fix to node joint as new conveneince unit didn't sort interior light problem
5) recode all spare keys to new convenience unit - don't forget the last step!

suspect if you're not covered under warranty, lifting the carpet and checking for dodgy contacts would sort it...

[Kentish]

Is the pollen filter supposed to have a seal on it?, mine just sits in its tray.

[Lummox]

Not the filter itself, the water gets in between the plastic housing and the body.

More so when leaves etc block the drain of the plenum area and water collects there.

[tracy3108]

Finally got the guts to pull up the carpet, found wire looms and a plastic black box under the seat, its only the rear of car thats wet, what wire / connection do I need to be looking at? and where do I look for the leak? No warranty and I'm broke so its the diy jobby. any pointers greatly appreciated.

[tracy3108]

ps wheres the pollen filter i'll check it out

[bryanp]

Originally Posted by tracy3108

Finally got the guts to pull up the carpet, found wire looms and a plastic black box under the seat, its only the rear of car thats wet, what wire / connection do I need to be looking at? and where do I look for the leak? No warranty and I'm broke so its the diy jobby. any pointers greatly appreciated.

Hi, did you manage to sort your lights, just had a heavy down pour and now mine have done exactly the same, if you did have you got any useful tips, also did your boot light stop working aswell, Cheers Bryanp

[kitchenscrubber]

I still have the same problem with mine, so far I have cleaned out behind the polen filter it was full of crap! but haven't moved the carpets cause i will probably break something knowing my luck.

[SJFISHER67]

Originally Posted by tracy3108

ps wheres the pollen filter i'll check it out

If you open the bonnet and pull forward the rubber seal at the rear of the engine bay between the engine and battery tray, the plastic panel (over the brake fluid reservoir and battery) pull this forward and up towards you. Then the pollen filter is on the right hand side at the base of the passenger side of the windscreen.

[tracy3108]

Hi, still have problem, had the pollen filter casing sorted as was cracked or something, however had all carpets up and can't find which wire I'm looking for?

Followed the wires down to a junction box in front of passenger door, and then ???

And yeh cracked the side plastic running at the bottom of the front passenger seat belt oops.

Does anyone know which wires I am looing for?

Cheers

[Lummox]

The wiring runs along the passenger side to the rear of the car, follow the loom back to the rear foot well. Find a group of red wires joined together.

[tracy3108]

I have just finally got around to fixing the wires, I found 4 wires in a node joint corroded, so cut back and re-connected, but the water is back! I have just had my car serviced and they say the drains were cleaned, my warranty does not include water ingress claims and they want £50 an hour just to look at it, I have 50 pence!

So to sum up, I have no idea where the water is coming from, and my lights still don't work.

Is this likely to be the convenience unit?
Is there any serviceable bits for the lights that won't affect the programming?

Thanks again to all

Phil