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2006-2009 Range Rover Sport
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17 Posts
Discussion Starter #1
US driver's side on my 2006 RR Sport. I've searched this site (and others) and have done all the recommended fixes. And, I still have water on the driver's side floor. Also, this only happens when it rains, so I don't suspect that it's the A/C drain lines, although I am gonna crawl under there and clear them as well.

I have run new hoses down the A-pillar all the way through the drain hole behind the side trim, switched the A-pillar trim and sealed the plastic clips (I also plugged the hole the broken guide post would go in).

There is no water coming in the passenger side, but I rigged a shield for my fresh air intake under the passenger-side cowling also for preventive measures.

I have a new cowling ordered (mine is warped)...could this be the source of my wet floors? Also, it appears that under my warped cowling (under the wiper motor), there are large gaps where body panels meet. Should those have been caulked at the factory? The passenger side is one piece (caulked where the fresh air intake is) but the driver side is not--perhaps spot welded?

I can't imagine a warped cowling would get the floor that wet as a new one is not gonna be water tight with only those flimsy clips that break off if you sneeze on them in the car wash.

The only thing I can think it might be is a leaking windshield, but replacing that is obviously the last resort.

Thanks in advance!
 

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2010-2012 Range Rover Sport
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128 Posts
Further to the thread directly above this one (wierd interior odor in wet weather)... might you have a hole in the floor pan?
 

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2006-2009 Range Rover Sport
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17 Posts
Discussion Starter #3
Further to the thread directly above this one (wierd interior odor in wet weather)... might you have a hole in the floor pan?
Haven't looked, but it has 70,xxx Texas rust-free miles; I can't imagine it having a hole in the floor pan.

If the Rover is parked in the rain the floor gets wet, so that "should" eliminate the floor pan theory. I caulked the crap out of it under the cowl, supposed to get rain this evening. I'm gonna leave it out and see if the floor gets wet.
 

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2013-2015 Range Rover Sport
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480 Posts
Strange odor: heater core has a leak or possible heater hose leaking.
 

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2010-2012 Range Rover Sport
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128 Posts
I agree if the floor is getting wet while parked in the rain then it seems it can't be a floor pan hole.
Just some crazy ideas:
When the carpet is dry you could try hosing different parts of the car then checking the carpet to at least get the general area of if/where its coming in.

At least on 2010-2013 models there's a known failing of the plastic tray forward of the windshield ( under the wipers) which over time warps up/away from the windshield (from heat/sun exposure etc)leaving a gap where water can get in. Maybe check for a possible leak there or from a bad windshield seal.

I guess its theoretically possible that its water from a leaky sunroof (also an apparently surprisingly common issue with our cars) running down the inside of an A pillar or something, but that seems at best unlikely, at least without other more visible signs. Might be worth checking for if you're otherwise stumped though.
 

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2006-2009 Range Rover Sport
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17 Posts
Discussion Starter #6
I agree if the floor is getting wet while parked in the rain then it seems it can't be a floor pan hole.
Just some crazy ideas:
When the carpet is dry you could try hosing different parts of the car then checking the carpet to at least get the general area of if/where its coming in.

At least on 2010-2013 models there's a known failing of the plastic tray forward of the windshield ( under the wipers) which over time warps up/away from the windshield (from heat/sun exposure etc)leaving a gap where water can get in. Maybe check for a possible leak there or from a bad windshield seal.

I guess its theoretically possible that its water from a leaky sunroof (also an apparently surprisingly common issue with our cars) running down the inside of an A pillar or something, but that seems at best unlikely, at least without other more visible signs. Might be worth checking for if you're otherwise stumped though.
I've replumbed all the lines from the sunroof and eliminated the perished rubber 90-degree bushing. For good measure I ran water through the sunroof with the inside trim removed and watched the water flow and checked for leaks; there are none.

It rained a bit last night and the carpet was dry, but there were a few drops of water on the bottom side of the footrest by the hood release lever. My caulking under the cowl area may have done the job for the most part. I will next remove the trim inside and look for water marks and flex seal the crap out of it!

Also, my new cowl arrived, will install that as I'm sure it will seal better against the windshield than my warped one. Those are not water-tight, however, as it has a honeycomb grill.

Also, I don't suspect a heater core issue at this time as the carpet is only wet after a rain or car wash, and no coolant odor. It is, however, a Land Rover and nothing should be ruled out now or in the future!
 
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