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Renault Laguna II Estate, Water Leak to Footwells repair with Pics

66K views 16 replies 14 participants last post by  Elkongen 
#1 · (Edited by Moderator)
Hello all, I know this has been discussed in the forums, and after reading the posts I got the tool box out and attacked my Lag.
I decided that there wasn't any stains in the headlining and intial inspection showed no water ingress through the doors and seals, so was my leak coming via the Pollen filter box/housing, before dismantling the dash board to see if it was I thought I'd prefer looking in the Scuttle tray first. This was the answer as you will see in the following pictures detailing how remove bits, find clear and clean these little butt aches!
I decided to start with the passenger side which IS the easier side.



Remove the seal, which is also very easy to replace, then remove the 2 little plastic lugs with a quarter to half turn then gently prise these out (as shown in pic from drivers side)



to remove the scuttle cover look where the drivers and passenger side covers meet in the middle, lift the drivers side and slide the passenger one from underneath it,



holding the bonnet up while it is not connected to the stay



will allow you to move it accordingly to enable wiggling of the scuttle cover to remove it from under the edge of the bonnet towards the front of the car, you will then be able to see into the corner of the skuttle,



you will find a rubber flap that in my case was stuck shut with goo stuff!



prod it with your finger or screw driver



and watch the water run away,



get a plastic bottle of sorts and power flush the residues out through the drain. the pics that follow will show where the opening is that goes through to the pollen filter and where my finger points is where the water was sloshing into the filter housing and into my passenger footwell when turning corners,





when you have done this I advise clrearing and cleaning the nooks and crannys (gulleys) near the bonnet hinges and where the rubber was removed,







once the cleanings been completed you can put everything back as you removed it..
Now the more difficult drivers side would need you to remove the wipers, which is quite simple BUT you can just prise the Scuttle cover enough



to slip a small hand in to do the dirty work



A thorough flush through squeezing your water bottle into the gulley should blast residues away, check before reassembling. I hope this post works, and that all your leaks are hisory, until you have to do it all again in the next couple of years..

Regards

Bazza
 
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#2 ·
Updated for the new forum formatting ...

Hello all, I know this has been discussed in the forums, and after reading the posts I got the tool box out and attacked my Lag.
I decided that there wasn't any stains in the headlining and intial inspection showed no water ingress through the doors and seals, so was my leak coming via the Pollen filter box/housing, before dismantling the dash board to see if it was I thought I'd prefer looking in the Scuttle tray first. This was the answer as you will see in the following pictures detailing how remove bits, find clear and clean these little butt aches!
I decided to start with the passenger side which IS the easier side.



Remove the seal, which is also very easy to replace, then remove the 2 little plastic lugs with a quarter to half turn then gently prise these out (as shown in pic from drivers side)



to remove the scuttle cover look where the drivers and passenger side covers meet in the middle, lift the drivers side and slide the passenger one from underneath it,



holding the bonnet up while it is not connected to the stay



will allow you to move it accordingly to enable wiggling of the scuttle cover to remove it from under the edge of the bonnet towards the front of the car, you will then be able to see into the corner of the skuttle,



you will find a rubber flap that in my case was stuck shut with goo stuff!



prod it with your finger or screw driver



and watch the water run away,



get a plastic bottle of sorts and power flush the residues out through the drain. the pics that follow will show where the opening is that goes through to the pollen filter and where my finger points is where the water was sloshing into the filter housing and into my passenger footwell when turning corners,





when you have done this I advise clrearing and cleaning the nooks and crannys (gulleys) near the bonnet hinges and where the rubber was removed,







once the cleanings been completed you can put everything back as you removed it..
Now the more difficult drivers side would need you to remove the wipers, which is quite simple BUT you can just prise the Scuttle cover enough



to slip a small hand in to do the dirty work



A thorough flush through squeezing your water bottle into the gulley should blast residues away, check before reassembling. I hope this post works, and that all your leaks are hisory, until you have to do it all again in the next couple of years..

Regards

Bazza
 
#5 ·
Right, just tried the small hand technique - ouch :(

Just managed to reach into the corner without breaking the trim - wiper arm wasn't going anywhere without a puller and frankly couldn't be 8rsed. There's a small flap and while it wasn't blocked I guess it was restricted enough so that when there was heavy rain it would back up sufficiently to run through the scuttle into the driver's footwell. I'd previously checked it was running clear into the wheel but it was still wet after heavy continuous rain.

Hopefully having cleared the tiny amount of gunk out it will now be sufficiently free flowing to not flood. I don't want to try fixing the UCH till I'm sure this is resolved.

Cheers!

:d
 
#13 ·
Hi, just read these posts regarding water leaks and wonder if the great instructions posted by MUSTANGBAZZA would apply to my Laguna 1 1997 model . I have same problem (water into drivers footwell ) I am not very confident when it comes to cars so I dont want to start pulling bits off unless I am pretty sure I am doing right . How did you go on? I am also getting a little bit of water through the overhead controls for sliding roof and interior lights, this only seems to occur after car has been stood for a few hours, once mobile it stops.
 
#6 ·
Re: Renault Megane with similar issues

I just wanted to add my comments and observations on this subject which is covered in numerous other posts on this forum but not specifically for my Renault model as far as I could establish.
Firstly, I am not mechanically orientated so any repair I undertake myself is with apprehension and normally only after researching the topic first. So at this point I just want to say thank you to everybody at Renault forums for their time and effort in offering support.
My vehicle is a 2006 Renault Megane Expression DCI 106 Estate (Sports Tourer) and my problems were as follows.
I purchased the vehicle about 13 months ago and it always smelt a bit musty but I put this down to the previous owner having many children and thought that they had probably spilt various liquids on the seats. However, over the last few months things had deteriorated.
The inside of the windows kept steaming up (especially the windscreen but at the rear as well) just like there was extremely bad condensation and this took ages to demist/dry. Then my heater control would intermittently stop blowing on setting 4, but worked perfectly on settings 1 to 3. One morning when my wife borrowed the car she said the driver’s side carpet was swimming in water and more recently I could hear water swirling about somewhere at the front. I could also hear strange noises at times coming from the heater a bit like a carrier bag was stuck in the fan.
So after reading various topics on the Renault forum I proceeded to investigate.
My first step was to remove the pollen filter as per this post.
http://www.renaultforums.co.uk/showthread.php?t=75995
It was thick with leaves and dirt, so I vacuumed it out and cleaned it as best I could and then found after squeezing my hand into the hole where the pollen filter fits, I also removed handfuls of leaves and dirt from there too (I managed to vacuum in there as well). It was strange but I also removed a large piece of masking tape from this area that must have come off somewhere internally.
I have now ordered a new pollen filter – Renault part number: 77 01 604 235 (Genuine Renault Megane II Phase II Cabin Pollen Filter) via eBay at a total cost of £25.11. I am not sure if this is a good price or if compatible type would be cheaper.
Anyway, I still had the same problems so I came across this post about the resistor pack.
http://www.renaultforums.co.uk/showthread.php?t=98615&highlight=megane+scuttle
I had a good look at this on my vehicle and could not find any problem/s with mine so went on looking until I found a number of different posts relating to the ‘Scuttle Panel’ which seemed to point to the cause of my issues. So getting up early one Saturday morning this is what I did (sorry I did not have a digital camera available at the time).
To confirm left and right correctly, I was standing at the front of the vehicle looking directly at the windscreen.
1. Open the bonnet and remove both wiper arms – there is one retaining nut on each arm. I had read that it might be difficult to pull the arm off the spline so I had ordered a tool on eBay but as this had not arrived, I shut the bonnet so that I could get good access to the arms, sprayed with WD40 oil and wobbled up and down and side to side and pulled until they came off.
http://www.ebay.co.uk/itm/330656681585?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
2. Remove the two plastic panels located each side at the top edges of the scuttle panel near the bonnet hinges. These are held in place by three clips and are a bit of a fiddle to get on/off. The panels push up/down on the clips.

3. Remove the four retaining clips on the scuttle panel. You have to turn the screw tops and then pull the complete clip out. Not sure exactly how these work as I broke them all.

http://www.ebay.co.uk/itm/CITROEN-PEUGEOT-RENAULT-TYPE-TRIM-CLIP-X-10-EQV-8565-53-/300626939567?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item45fec30eaf

4. I also removed the push on rubber trim that fits along the complete front edge of the scuttle panel.

5. Finally lift off the complete scuttle panel.
Then hopefully all being well you will expose the cause of all your problems – the dip in the body panels will be totally full of water caused by the two drain holes located about 18 inches in from each side at the bottom being totally clogged up with dirt and muck!
The drain holes are fairly large about 2 inches in diameter - I was expecting them to be much smaller. The one on left is located directly under the wiper motor assembly and below the open air intake hole leading directly into the car and is a little more difficult to get to - the one on the right has a cable running through it.
Simply clean out the muck around the drain holes and you will hear and see that water disappear and puddles appear behind the front wheels. I spent an extra half hour cleaning all around the exposed areas with a can of foam cleaner and then flushing with hot water.
It is really very surprising how much water is retained in this area when the drain holes are blocked and then fairly obvious to see how the water enters the inside of the vehicle via the air intake hole and could subsequently drip on the heater components and/or in the foot wells. I am also surprised and relived that this did not damage the wiper motor as this is dangerously exposed to the water retention.
Anyway, after putting everything back together (in reverse order to the instructions above) my problems seem to be resolved and I am happy that I can confirm that this repair can be completed easily and quickly even by a complete novice!
 
#11 ·
Thank you so much for this incredibly helpful solution.

(Could the moisture build up from this have caused electronic problems with sat nav not turning off completely when the card is removed - or even a failure of the rear sensors which we have recently had to pay £150 to have sorted - problem being wetness on a seal somewhere?)
Any thoughts would be appreciated - you can tell, I expect, that we're not mechanics!

Cheers and thanks once again!
 
#14 · (Edited by Moderator)
Superb pictures and instruction. A great posting indeed!

I had a real problem with leaks into the footwell and immediately suspected this problem.

Just for any others who have had similar probs, the other possible cause is from the sunroof drains.

These go through the door pillars and lead to rubber "duck bills" in the back of the plastic liner to the wheel arches. The overflows or pipe joints leak into the footwell (and on the driver's side, conveniently all over the fusebox!)

The Plastic liners are easily prised open with a screwdriver wrapped in a cloth, reach in, remove and clear the rubber, (or dispose of it as I have), flush the tubes and you are done.

Great YouTube video on the matter by a helpful person.
 
#15 ·
Re: Renault Megane with similar issues

Quick reply to Klausanta.

Many thanks for your post. I have just completed job on my Megane Tourer. I would add the following comments. The Tourer has a complete plastic (scuttle) panel therefore wipers must be removed.

To remove wipers I placed spanner underneath wiper arm and leveraged upwards while tapped screw from top with hammer to loosen. Careful to keep your hand on spanner and dont let it touch windscreen when hitting down with hammer.

Other point to note is the plastic screws: Once they loosen with screwdriver (1/4 turn) prise the centre piece that you just turned upwards away from the outer ring. Using fingers to pull centre piece upwards the whole plastic part should pop out.
 
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