Thread: Scuttle Panel Plenum Grille JAK000010PMA

Originally Posted by PhilipA

And don't worry that the fiberglass one does not have the holes in front and the foam filter.

THE AIR DOES NOT COME IN THERE ANYWAY! I have no idea why LR put the foam there. They must have had a different design for air intake in mind then changed their mind.

After having a look at a Malay fiberglass One I was very impressed and will go that way if the second hand good one I bought dies.
And yes you have to be careful to not lift the bonnet too high as it does crack the plenum cover. The most important thing is to tell windscreen repairers that they have to remove the bonnet before trying to remove the plenum cover.
Regards Philip A

Air for interior ventilation does go through there. The intake for the A/C heater system is under the plenum cover about where the passenger side wiper blade sits, up high enough to stop normal rain and water splashes from entering the system. The original foam has long gone but I have replaced it with air conditioning filter material from an aircon installer (needed a bit of mesh cut to hold it in place) and the amount of dust I can blow out of it with an air gun after a day or two in a group of 4x4s on dirt roads and tracks is nothing short of amazing. I always use air gun and air lance to blow dust out of engine bay and radiator after any group travel on dirt. Nearly all vehicles draw air for interior at base of windscreen (apparently is a high pressure area that will still push air in without fans operating) in similar way. With climate control always operating very little dust ever gets inside, can rarely even smell dust for that matter. You will notice the sealing rubber in front of the plenum area that the bonnet shuts down onto designed to separate engine bay from ventilation air (don't know that it seals all that well but it does keep engine bay smells out) You will notice from the pics that mine is broken too, but some tek screws and some light metal strips are keeping it together, for the moment at least

Originally Posted by V8Ian

Over US$300, that's an expensive lump of fibreglass.

Agreed. All relative though. Compare to similar or higher price for plastic equivalents.

Originally Posted by tommo1166

Air for interior ventilation does go through there. ....

That;s what I thought too.
Air enters from between the bonnet and windscreen(ie. backwards to forward direction).
Bonnet is sealed via the rubber strip, I guess to minimise hot air entering through.

D1 system is very similar(slight difference).
I had what looked to be original filter still fitted on my D1, and I went to check it's condition and it crumbled with barely a touch.
I pulled it all out so that it wouldn't crumble up and get dragged into vent system.
Noticed more dust through the vents since then.
I got some pool filter material from clark rubber will cut it into strips to replace it one day. Pool filter gauze stuff I got is slightly finer than what small bit I had as a sample for the clark rubber chap to find for me.

Originally Posted by candeniz

Thanks for all your advice. I think I might go with the Malay option and replace it myself. Saw this YouTube video so will give it a try. YouTube

I pulled the carpet holder trim to see what it was like underneath the carpet. The floor has no rust but the carpet foam underlay is still wet. Could someone tell me where the water leaks on the inside pls? Pulled the cover under the glovebox but couldn’t see the dripping spot.

Have you checked the air-con drains underneath? They are "protected" by conical rubber plugs, which have the tips quartered and the water is suppsed to pass through. I found both my passenger and drivers side carpets absolutley sodden. Thought it was due to water coming in through the top untill I was told to check the drain plugs. Found them, gave them a flick and got soaked with the back up water.

For the next couple of years I would regularly go underneath and give them a flick as a precaution. Although I finally did what I was recommended to do - cut the tip off. Hard to explain where they are exactly under the car. One either side of the gear box, passenger side one easier to find than drivers side. Make sure you are not directly underneath the plug when you give it a flick, or you might get a little wet.
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Originally Posted by IainDD

Have you checked the air-con drains underneath? They are "protected" by conical rubber plugs, which have the tips quartered and the water is suppsed to pass through. I found both my passenger and drivers side carpets absolutley sodden. Thought it was due to water coming in through the top untill I was told to check the drain plugs. Found them, gave them a flick and got soaked with the back up water.

For the next couple of years I would regularly go underneath and give them a flick as a precaution. Although I finally did what I was recommended to do - cut the tip off. Hard to explain where they are exactly under the car. One either side of the gear box, passenger side one easier to find than drivers side. Make sure you are not directly underneath the plug when you give it a flick, or you might get a little wet.
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Hi Iain
I did give it a flick on the drivers side last weekend and it started draining. The tip was blocked. I could not reach the other one on the passenger side, as it's not very accessible. I didn't get a chance to spend more time on it. Any advice on that? Will try again this weekend.
And yes it drains onto the driveshaft but I could not see any rust on it due to any water dripping in the past. I could either cut the tips off or extend the a/c drains as others have suggested earlier.
Cheers
C