Golf Mk iv 2000W Water Ingress

[Peter Sproston]

During recent heavy rain drivers rear footwell has become 1" deep in water. Doesn't look like door seals, window not fully closed or sunroof and I suspect maybe water is entering via heating vent under drivers seat. Drivers footwell is slightly damp but nothing like rear so water could be running through if there is a route under carpet. Any views - I have seen comment about problems with pollen filter water shield cover being misaligned and causing leakage. Could this route through to here?

[JoGibson]

Do you have a sunroof? If so, then the sunroof drains could be blocked (had this problem with an Audi A4 - the rear sunroof drains were blocked and water came in down the pillar behind the rear passenger seats and soaked the rear passenger footwell - seems to be a common problem with VW/Audi cars).

[Peter Sproston]

Funnily enough I had only just come to the same conclusion just before seeing your email about water from the sun-roof not getting away properly and running down the central pillar - and it was following very heavy rain. As far as I can see the rear drains seem to work (just poured some water in and it flowed out under the rear bumper). However, there appears to be two holes at the front which I assume are front drains in the corners of the sun roof and which even with a little rodding with a peice of wire don't seem to work - so could this be the problem. Anyone know where do they come out?

[JoGibson]

Seems that blocked sunroof drains are as big an issue on the Golf as they are on the Audi! Great, as we pick up our newly purchased Mk IV Golf (with sunroof) next week.

In the Audi A4 the front sunroof drains exit near the front door hinge - you can see a rubber nipple - I think the Golf drains may run down the A pillars and into the wheel arches? If it is the front drains that are blocked they should be easier to clear (the rear ones are a bit of a nightmare, at least on the Audi) - a length of speedo cable or a straightened out coat hanger pushed through the front drains from the sunroof end should get any muck moving. If you have an air compressor (like a portable tyre inflator) then blast that down the drains too.

When we were sorting out the Audi I found this site for which has a specific FAQ for sunroof drains:

http://forums.vwvortex.com/zerothread?id=1909676


This thread will show just how common this problem is on VWs and Audis:

http://www.theautobahn.com/forum/showthread.php?t=12789

Hope this helps - good luck!

[Peter Sproston]

Jo

Many thanks, when I squeezed the nipples (?) crap and dirty water ****** out - problem solved. I think the nipple is too restrictive and dirt just builds up and eventually the whole thing becomes blocked and floods the car down the central pillars! Why can't VW clean the nipple out at regular service?? Many, many thanks. Car stinks and I guess will take a while to dry out but nevertheless won't get any worse now.

[JoGibson]

Hi Peter

Glad that you've got it sorted!

We invested in a portable ceramic heater (about £8 from B&Q) and set it running in the car to get everything dried out - it takes a while, especially if the insulation materials have got wet. We found the best thing to do is to lift the carpets so that air can get underneath too, they will dry out better. If you use one of these heaters, sit it on an upside down metal tray (like a roasting tin) because the base of it seems to get pretty hot (scorched carpets would be worse than wet ones I guess). The sooner you can get them dried out the better, otherwise you might end up with mould or mildew.

Cheers

Jo

[Adrian Wood]

hi
I have loads of water in the back passenger footwells, and having read your other comments, believe I may have a drain problem.

I have found the front drain holes easy enough, and put some flex down . Saw the end come out by the front door hinges so all that looks OK.

But how do you even find the rear drain holes which would seem to be under the metal roof. Or can you get in from the other end of the drain holes? If so, where is that?

Looking forward to a dry autumn to get this fixed!

[Peter Sproston]

Looks like you have a similar problem. To test the rear drains I parked on an upward slope and poured some water carefully into the tray around the sunroof (sunroof open) to see if water came out the back - it did on both sides from somewhere beneath the rear bumper so assumed the rear drains were not blocked. I agree it looks tricky to find the actual drain openings at either end.

Have spent a long time drying out the carpets, particularly the underfelt which seem to smell worse than the carpet. Pong not yet gone even though now dry and no more water ingress but hopefully will go in time. This is really bad design by VW and I am particularly incensed that they do not clear the channels at a service as it is clearly a widely known problem!

Good luck......

[JoGibson]

Hi Adrian

Have you checked out this link :

http://forums.vwvortex.com/zerothread?id=1909676

We gave up trying to find the rear drain holes on our Audi (they are behind the bumper, I think you have to take the bumper off to get at them properly) and took it in to a local independent German cars specialist - they reckoned that they had to strip out the interior trim and headliner to get at them (still came back leaking, and could see water dribbling behind the plastic trim on the rear door pillar, but reckoned that they probably did strip out the interior trim as it was came back broken).

Also, on the Audi water from the windscreen drains down through two holes - one beneath the battery (have to take the battery out to see it) and one behind the servo unit - these can get filled up with leaves and mud and cause a problem - possibly the same on the Golf????? May be worth a look.

Good luck

Jo

[FreedomWriter]

Hi Guys,

Sorry to resurrect an old thread but I have just found water problems in my Golf and thought it would be better than starting a new one. We have a serious water leak into the passenger side foot well, but as I have been working away quite a lot lately I'm not sure how long it has been going on. The well is saturated with water and the rear seat of the passenger side is also wet (although I think this may be a spreading of water from the pool that is sitting in the front.

The main difference to what other people seem to have experienced, is that I don't have a sunroof. We have spent most of the day today trying to work out where the water is coming from (i.e. spraying at various points, noting any ingress) and we think it seems to be coming from behind the passenger door panel. Apart from that, however, we can't work out where the leak is happening - there is no damage to the seals that we can see, everything seems exactly the same as the driver's side (with no leak!). Does anyone have any ideas before start taking the door panel off and having a look around?

Thanks in advance,

Dave

[Adrian Wood]

Hi Dave

My problem was solved by my garage near Milton Keynes (not a main dealer). They found the pollen filter housing seal had gone. This is located under the plastic trim at the bottom of the windscreen wipers. They fastened it down again, and applied some silicone sealant and all seems a lot better, although we still have musty smell owing to carpet felt still drying out.

We have had quite a lot of rain now though, and no further wetting of the carpets seems to occur. The location of my leak was exactly the same as yours - damp in front passenger well, and most wet being in the rear passenger well. The passenger well may be lower when the car is parked in some situations.

Hope you find this helps.

[FreedomWriter]

Hi Adrian,

Thank you for the tip - I will check it out. Typical that these things happen when the bad weather starts isn't it!? :aargh4:

Many thanks,

Dave

[Chunks]

Hi,

Did you get the problem solved? What was causing it?


I have a very similar problem to your one and I'm very worried about it. Any help would be appreciated.

Thanks

[FreedomWriter]

Hi Chunks,

Not had a chance to look yet - will be checking it out this weekend. Have tried to get the car dried out this week, but not yet identified the cause :confused:

Cheers,

Dave

[Chunks]

Yeah me too. Post up anything you find? I'll do likewise.

Thanks

[John&Lisa]

We had a big puddle in the passenger side of our car - the left side as the steering wheel is on the right. Found that the drain holes in the area below the windscreen were blocked. If you looked down through the grille below the windscreen you could see the water pooled in there. When it came up far enough it would slosh into the car by the passengers feet.

Remedied this by clearing the holes with a piece of wire from the top through the grill.

The water also drains to the back of the car. Had to dismantle some trim and lift carpets to dry out properly.

[Chunks]

Right, I think I may have solved the problem.

I was just out working on it with my old man and we found two drainage holes, one in each front corner of the drainage pan around the sunroof. If you put the sunroof fully open you should be able to feel them if you put your index finger in.

I poured some water into the pan and it just sat there not going anywhere. So my dad pushed some wire through one of the drainage holes and it didn't do much. Then we tried blowing and pumping air into it to try and clear the blockage but that didn't work either.

We then tried to trace the line of the drainage channel and figured it must come out somewhere near the door. We opened the front doors fully and just above the hinge theres a thick rubber nipple about 1 1/2 inches long sticking out from the body of the car pointing about 45degrees downwards. We squeezed these nipple things and a load of black sludge started oozing out (like a blackhead! :D ) Shortly followed by the water from the drainage pan. We couldn't find any holes in the back of the drainage pan so we figured it must have backed up and reached the boot because most water problems in golfs start in the front and work their way back.

I'm currently drying out the flooring of the boot with tissue papers and a hair dryer, the bottom of the removable flooring is made of felt so it 'll probably take a day or two hanging in a warm house for it to dry out fully.

Hopefully that'll fix the problem. If I find anymore damp in the boot i'll know it's something else but I'm fairly confident it's due to the drainage tubes becoming backed up.

Let me know how you get on, hopefully it's the same as my problem:Blush:

[FreedomWriter]

Hi Guys,

Chunks: haven't had chance to look at mine this weekend, had water problems with my house as well, so decided that took priority! ;) I'm glad you seem to have found your solution - the sunroof seems a very common problem from looking around at a few sites. A lot of people angry that Volkswagen know that this is a common problem, but no documentation of it. My Golf doesn't have a sunroof, so my solution definitely lies elsewhere.

John&Lisa: any chance you could post a picture of the holes that you mean. I will probably be able to see them clearly, but will not have much daylight to work in by the time I get home tonight! :)

Cheers,

Dave

[John&Lisa]

Can't do a photo just now as my wife has the car out and it is raining outside. Difficult area to photo too.

It's more of a gap between the horizontal panel where all the water collects below the windscreen and the vertical panel at the edge of this collection area, rather than a hole per se.

I could not see exactly where this drained to outside the car as I could not get into the area from near the front wheel. But it was draining onto the ground somehow through a gap in the bodywork panels.

[fixedgear]

I'm having the same problem with my 01 gti 2dr with sunroof. Passanger front (left) footwell is wet and so is the rear one now.
I've taken up the carpet as best as possible and put in some towels to try and soak up the water.
Only the carpet on the foor seems wet, there doesn't seem to be any dampness on the sides under the door or up along the bulkhead under the dash.
I'm thinking it might be the sunroof pipes or the pollen filter.

Any one have any other ideas on what it might be?

[Chunks]

I'm having the same problem with my 01 gti 2dr with sunroof. Passanger front (left) footwell is wet and so is the rear one now.
I've taken up the carpet as best as possible and put in some towels to try and soak up the water.
Only the carpet on the foor seems wet, there doesn't seem to be any dampness on the sides under the door or up along the bulkhead under the dash.
I'm thinking it might be the sunroof pipes or the pollen filter.

Any one have any other ideas on what it might be?

Sounds like the drainage tubes for the sunroof are blocked. Refer back to my post above of how i solved it. That should clear it up for you. Let us knwo how you get on

[fixedgear]

Thanks Chunks, I'll give it a go at the weekend and I'll report back. Thanks for the help much appreciated.

[cyclingnut]

Hi Dave, just wondering how you got on with your water problem.

I've got a 8 month old Golf Plus 1.9 TDi (without sunroof), and at the moment I'm suffering terribly with the car steaming up. I know it's the time of year, but the other weekend it was so bad water was dripping off the inside of the windscreen :zx11:

It used to do it on colder evenings during the summer, I just put it down to the fact that previous use normally had the air con on and just assumed that the air was a little bit 'wet'.

I haven't checked under the carpets yet, but am interested to know anyone's views before a) I check it over myself, or b) I take it back to VW.

Any replies will be appreciated.

Cheers
Sam :)

[andricos]

hi were exactly are the drain holes. as i m having the same prob wit my polo water coming through passenger area

[andricos]

hi was wondering if anyone could help me i have a mark 4 polo which when it rains the passenger area fills with water, and when i go round corners you could seee it pouring in. ive been told it could b the drainage holes next to the pollen filter where these are i dont know any ideas????????? when i lift the plastic off to get access to it there is a lot of water there
please email me andricos2000@yahoo.co.uk

[villiham]

I have a 03 Golf Tdi, I had water pooling in both footwells, I took it to a garage, they found leaks everywhere, one behind the bulk head leaking into the driver side footwell and another behind the nearside rear light cluster.

So far the leaks have been fixed, I could have grouted my bathroom with the amount of silicone I have got through though.

The leak by the bulk head seems to have been leeking onto some wires I now get a serious judder both when the car is idle and when (trying) to accelerate. The engine management light has now come on. HELP!!!!:zx11:

[Bectism]

I've had water collecting in the driver's side rear foot well. I checked sun roof etc., but it turned out to be a very small leak in the door seal along the bottom of the driver's side rear door. However, this small leak only happens when the car is parked at an angle, i.e. on a cambered road (where the car is higher on the driver's side than the passenger side). You might notice when you open the door of a Mk 4 golf after rain, water has gathered on the foot plate. When parked on a cambered road (as above), water on the driver's side tends towards the car and is channelled by a piece of the door seal that runs perpandicular to the main seal. This allows a small drip to run into the footwell that builds up to a bit of a pool! I guess it's a mix of age and design fault, so I've taken to hitching my offside wheels onto the kerb to keep the car at a level during rain. This seems to have sorted my leak out.

[pcdriver]

I,m having exactly the same problem with a pool of water in the rear footwell of my Golf. This is the second time its happened after a night of torrential rain. I used a wet and dry vaccum cleaner to get most of the water out (maybe a litre) but I,m reluctant to lift the carpets because i,m not sure how to do it. Squeezed the nipple on the sunroof drain,loads of water came out. Would appreciate some advice as to how best to dry out the carpts and foam, it smelled for ages after the last time.

[villiham]

I used a fan heater on full blast and I also left the car running with the heater blowing into the footwells. If you don't catch it quick enough like me you will get mould. I worked out why my car leaks.... because I used to parkit on a hill and the water couldn't drain properly. The car is ***** and I can't wait to sell it.

[pcdriver]

Thanks for the advice villiham, never had a leak problem with my Mk 2 until it finally rusted away. Could do without the grief. I,m thinking of taking it to a main agent to trade in - bet they know all about this lovely feature.

[Kerstin]

Hi all, how leaky are Golfs?! I can't believe this is such a widespread problem. Sorry, I'm following up on an old thread. I have a question re repair costs actually. - I've had water on the passenger side for a while (no sunroof) and got the pollen filter replaced last summer, which SEEMED to do the trick... But it is now absolutely soaking again, and my VW dealer is telling me it's likely to be the seals inside the doors. He also says it's false economy to just get the one or two doors done, because they have to take all the carpet out etc. - So I should get the seals replaced all around. :( Makes sense, but he's talking about £500 plus (Golf IV, four doors). Has anyone got any experience with this, and with the money you spent on getting it fixed? - In case anyone's asking, I don't see myself fixing it with my own hands.

Any advice would be much appreciated, thanks in advance,

kerstin

[John Skillcorn]

We then tried to trace the line of the drainage channel and figured it must come out somewhere near the door. We opened the front doors fully and just above the hinge theres a thick rubber nipple about 1 1/2 inches long sticking out from the body of the car pointing about 45degrees downwards.

Spurred on by this information, I resolved to cure the problem of my passenger side footwell taking in water in my 2001 TDi. I could not find a blockage as such, but when I took off the 'thick rubber nipple' I found that this held a blue plastic drainage pipe, connected to the drainage hole from the sun roof. Apart from the fact that this disengaged from the said nipple alarmingly easily, and could therefore get lost inside the pillar, it was severely kinked and it was (fairly clearly) this that was causing my blockage. As soon as I removed it from the door pillar the water rushed out due to the kink having been sufficiently straightened.

Being a man of many interests, I took a piece of flexible plastic aquarium air line three inches or so long and inserted this into the thick blue pipe to act as a sort of catheter, leaving an inch or so exposed. Very carefully I then put the blue pipe back into the black rubber nipple and replaced it into the door post.

Hey presto, problem solved. The water drains away beautifully. In my case at least, VW are at fault for the way they fitted the blue hose in the first place.

Hope this helps others.

[meathead]

I'd be inclined to call that an error when your car was built, a one-off.

Nver heard of that happening before, and I've searched dozens of posts ;)

[John Skillcorn]

Being a man of many interests, I took a piece of flexible plastic aquarium air line three inches or so long and inserted this into the thick blue pipe to act as a sort of catheter, leaving an inch or so exposed.

Further to this story: Sadly, this did not work for long due to the very flexible nature of my home-made catheter. A blockage re-occurred due to both tubes becoming kinked.

I therefore resolved to replace this with a short piece of plastic casing taken from a ball-point pen. I secured this inside the blue tubing by wrapping a stout piece of pruning wire around the junction and then replaced it back into the body of the car (losing it inside on one occasion).

This certainly allowed the water to drain away beautifully - however, it has not completely cured the problem as I still get a seepage of water trickling from underneath the joint from where the plastic bottom door sill meets the carpet. At that point there's a join of the plastic trim.

Any suggestions as to where the water could now be getting in would be gratefully received!:(

[Crasher]

That leak is the rubber seal around the base of window mechanism carrier. You have to strip the door down and remove the original foam rubber strip and replace it with VW part number AKD 497 010 04 R10 which is £30 for a 10 meter roll but a VW parts department will normal sell you a meter or two off the roll as you only need to replace the lower section and about 10-cm up each side. Do not under any circumstances use any sort of mastic sealant, when the window or lock mechanism fails in the future, it will be absolute hell getting the panel off again. As for the mechanism, if the window lifter clips are still the original plastic type, I strongly advise you to install a lifter rebuild kit whilst you are in there.

[meathead]

How did the pipe become kinked? Surely once inside the frame, it won't be able to move?

[John Skillcorn]

Crasher: Thank you for your very quick reply to my question about ingress of water. Sounds a bit like brain surgery to me, but I'm willing to give it a go! At least it's nothing to do with the engine - I really would be lost there! John

[John Skillcorn]

How did the pipe become kinked? Surely once inside the frame, it won't be able to move?

I can only imagine that this was done at the time of manufacture due to its inaccessability (and as suggested above by Meathead), but why the problem hasn't shown itself before now I can't imagine. However, if you read Crasher's reply then perhaps that explains at least part of the problem. I think there have been two factors involved here: the kink in the pipe certainly being one of them, the other the window seals. :o

[herby0001]

That leak is the rubber seal around the base of window mechanism carrier. You have to strip the door down and remove the original foam rubber strip and replace it with VW part number AKD 497 010 04 R10 which is £30 for a 10 meter roll but a VW parts department will normal sell you a meter or two off the roll as you only need to replace the lower section and about 10-cm up each side. Do not under any circumstances use any sort of mastic sealant, when the window or lock mechanism fails in the future, it will be absolute hell getting the panel off again. As for the mechanism, if the window lifter clips are still the original plastic type, I strongly advise you to install a lifter rebuild kit whilst you are in there.
I'm having an identical problem. When I took the door card off the NSR door, I noticed drops of water coming through through the opening where the speaker would sit. Crasher: this foam rubber you talk of, does it sit between the metal of the door and the door card or are we talking about getting deeper inside the door?
Cheers.

[John Skillcorn]

I don't think I've mentioned that my model is a 3-door Golf. Strangely, since I last wrote I've not had anything coming in even though we've had a fair bit of drizzle and rain! Maybe I've frightened it into submission with the mere thought of me dismantling the door!

[Crasher]

Crasher: this foam rubber you talk of, does it sit between the metal of the door and the door card or are we talking about getting deeper inside the door?
Cheers.

Between the metal bolt on window carrier panel and the door shell.

[Huffy1919]

:aargh4: it was driving me maaaaaad!! Long story short..

water in rear passenger footwell.. not comming from the rear or the head lining.. oh where or where?...

seats out carpet up.. glovebox out .. used a hose on the outside whilst observing from within.. found grommet with drip from front water trough located to the right of pollen filter housing, as u look at it.. fixed that but still leaking.. ( i knew it was not the door seal as i had the window regulator problem sorted and did the seal myself - silicone instead of new seal..)

found it to be that the sunroof drain was not connected properly at the exit grommet located next to the door hinge. ( must of helped it more off when i was told to clear it with an air hose 5 months ago!! crap connection / system anyway.!!) water was comming in at the foot area and flowing to its lowest point in the rear footwell!! Ahhhh

Not much room to work on it at the hinge location and the fact that the drain tube only sticks out a couple of mm.. Anyway inseted a 9 inch length of fish tank tubing with silicone as you go.. (first thread the free end through the exit grommet) Fill top of grommet with silicone and push grommet home. Hopefully they will meet and if they dont its no big deal coz the silicone that was poured as you inserted the tubing will stop the water running down the inside of that and the old tube and into the car (to left of footwell as your sitting) .. Whaalaaaa No leak!!!

Vaxed the soundproofing and alowed it to dry with the aid of a heater with the sunroof open. Put everything back.. :beerchug:

Week later did the same to the driver side as that was damp ( tube and grommet must have been clinging on. ) only thing different this time was no glovebox and i actually took the sound lining out by cutting the attached tabs near to the centre of the car. Needed to do this to take it inside to speed up the drying.. Last time i just drove around with no passenger seat.. :biglaugh:

WARNING THOUGH!!! DISSCONNECT THE BATTERY IF YOU HAVE , LIKE MINE, SEAT AIR BAGS.. YOU NEVER KNOW IF YOU MAY SET THEM OFF OTHERWISE!! EXPENSIVE.. IF YOU PUT THE SEAT BACK BEFORE RECONNECTING THE BATTERY NO PROBZ.. IF YOU, LIKE ME INORDER TO USE THE CAR, RECONNECT THE BATRTERY AND REFIT THE SEAT LATER THE AIRBAG FAULT LIGHT AND WARNING WILL APPEAR ON THE DASH. I'VE FOUND A MATE WITH A COMPUER AND SO HE HAS RESET THE FAULT. IF NO MATE ITS OFF TO VW OR SOME OTHER PLACE CHEAPER FOR THE RESET.

Whish i knew all this before i started.. hope it helps now that you know..:approve:

[John Skillcorn]

Not much room to work on it at the hinge location and the fact that the drain tube only sticks out a couple of mm..

There really isn't much tubing to play with here. I lost the end inside on one occasion, complete with nipple and I felt it was sheer luck that I managed to pull the whole lot out again with the aid of a piece of thick, hooked wire. :yikes:

[tramstop]

Had exactly same problem with loads of water in all footwells. Caused by blocked drains from sunroof. These run down door pillars to rubber tubes that exits the body between the upper and lower hinges of the front doors. About 1inch protrudes from the body. These become blocked. Just 'rod' them out with stiff wire. The blockage is usually just inside the tube. Watch the water pour out, if this is the cause. I have not had any problem since I did just this. Can't believe it was so easy. Garage changed door seals etc and still could not find problem.

[John Skillcorn]

Had exactly same problem
Hi Tramstop and thanks for replying. When I first asked for help on this one (ages ago now) I had no idea how much interest this would generate. It seems that ingress of water into Golfs is a big, big problem and one which I think VW should sort out as and when it occurs. I think they have made a token gesture at some time in the past, but I seem to have missed that... I'm still not 100% certain I've fixed the problem - only time will tell on that one:confused:. Otherwise, I'm delighted with the car.

[allyuk007]

Hi im having the same problem on my 2002 gt tdi golf. no problems until been away for 2 weeks came back to wet driver footwell and rear footwell. I found front drain nipples and driver one blocked but eventually let all the water out.

I cant find the rear ones any ideas :zx11:?????

Thanks in advance.:beerchug:

[John Skillcorn]

Hi there. Sorry to say this, but my Golf is a three door version, so rear doors didn't come into the problem. I've done a quick search on this website for anything to do with rear door drainage, but sadly nothing came up.
However, I know from experience that there are an awful lot of very knowledgeable chaps (and chappesses) out there, so I wouldn't be at all surprised if you find one of them will come up with the answer you need.
I'll keep everything crossed.

[Crasher]

It seems that ingress of water into Golfs is a big, big problem and one which I think VW should sort out as and when it occurs.


I know it is an old post John but I can’t help commenting on it, spontaneous water leaks into the Golf 4 are not at all common, in fact compared to the moving fish tank that was the Golf 2 they are positively water tight. Yes I have seen it from blocked roof drains on sunroof cars and occasionally from the wiring conduit under the dash but most water ingress into the Golf 4 is due to the separate common issue (which VW ARE to blame for) of the window winder regulator clips shattering. This means the doors have to be pulled apart and this is when damage is caused to the sealing strip on the regulator panel, singularly THE most common reason for water ingress in to the Golf 4. Every time we do a regulator, we remove the lower section of the seal and replace it with VAG’s own AKD 497 010 04 R10 non-setting sealing cord.

[John Skillcorn]

Hi there Crasher.
Thanks very much for the comments. I'm not very savvy with car maintenance, and tend to leave most things to the experts like yourself, but I did fiddle on with this water ingress thing and (and I'm touching wood here) so far the problem seems to have been cured. I've read about the seals and clips somewhere else, and I bet my turn will come...
The only issue I have now is the failure of water to reach the rear windscreen washer, but over time I've become accustomed to living with that. There is (or seems to be) a break in the pipe somewhere along the line because if I operate the rear washer/wiper I get a trickle of water from the car exiting from near to the nearside rear wheel. I've checked the connection inside the rear door and that's sound. But by all accounts it's an horrendous job to dismantle things in order to get to the pipe, so I'm leaving well alone!
But thanks again for the comments. I knew someone like yourself would give advice!
John

[Crasher]

Normally the pipe blows off in the engine bay or inside the rear left side panel but it can come off inside the roof lining but a wet rear corner gives that one away.

[John Skillcorn]

Hi Crasher. The rear left side panel seems the likely spot, then, judging from where the water dribbles underneath the car. I'll think on that one for a while before I act on it.
Incidentally, if your Vulcan XH558 served out in Cyprus on Bomber Wing around 1971 (I think Squadrons 9 and/or 35 but I could be wrong), then I could well have worked on its navigation systems.
Thanks again for your information.
John

[Huffy1919]

Sorry for a late reply..

I cant say that I ever found a rear drain..

What I can say is that I've never had the problem again since the 'operation' on the front drains..

:Blush: