So, hope someone here can help me out. Ever since I got my Rangie, there have been watermarks or stains of some description on the Windows - but here's the thing - only on the back passenger windows and the windows behind them, not the front windows, windscreen or rear window. It is a bit hard to get a clear photo, but if you need me to, I'll post a couple tomorrow.

It's never really bothered me too much, but after spending 7 hours today cleaning it after a long weekend in the bush, it has come up better than I have ever seen it, and these stains are now bugging me...

They look like small water drops that haven't been dried properly, but they won't shift no matter what I do. They seem to be on the outside of the glass and have nothing to do with the tinting. The tinting on all windows - front and rear is all the same, and not damaged or bubbling in any way.

Any ideas out there?

Cheers - Gav

Last edited by The Brains Trust on 7th Nov 2012 10:59am. Edited 1 time in total

Possibly had aftermarket tints fitted

The tints are the same on all windows and the front drivers, passengers and rear glass are fine. As mentioned, it appears to be on the outside of the glass and the tint is on the inside.

i would suggest that there is some 'dirty' water trapped between the tint film and the glass.. ... - .- -.




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Bird droppings maybe. The acid in the droppings leave marks like dried up water but won't be washed off. I have the same, just left it for a few days and now I need to do some polishing work as I heard that is the only way to remove it. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Not bird droppings, they are all over the the whole of each affected window. Stan's suggestion sounds plausible, but again, it is not on all of the windows which are tinted, just the back ones on each side. Not sure if these were the factory tinted windows and the others (fronts) were done later? All a bit of a mystery... I'll try to get some decent pics tomorrow night.

Thanks for all the thoughts so far.

Cheers - Gav

I don't have tints on mine, but when I got the car, it was covered in some sort of tree sap. Windows and everything.

The only thing I found that could move it was a Clay Bar.

I did them as part of claying the whole car.

Even white spirit didn't work. 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Forgive my ignorance, but what is a clay bar? - and how does one use it?

Sorry mate, it's part of like a car polishing kit, you use it to take all the impurities from the paint and get it "like new". You would then wax afterwards.

This is what I used.

http://www.meguiars.co.uk/product/194/Quik-Clay-Starter-Kit/

If you put clay bar into youtube there should be loads of info on how to use it.

You spray a lubricant on the bodywork, and rub the clay bar over the paint. Impurities stick to it.



 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

I'll second the clay bar approach.

If that doesn't shift it, then Stan's suggestion must be the most logical. Si. <This is my name.

I eat rat poison.

A man ain't truly been insulted until he stands buck naked in front of a woman and she didn't even notice. Or care.

If this what I have experienced before in WA then it will be a unique problem to Oz and no amount of cleaning or clay bar will do a single thing.
You will have extremely hard water I presume much harder than anything in the UK and on top of that extreme and relentless sun this combined will bake on the lime stone deposits in your water so I would try a mild acid maybe even vinegar and followed with some glass polish .
My brother in law never washes any of his HSV's properly and they all are plagued with impossible to remove water marks . 2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

"Bar keepers friend" is excellent at cleaning everything including stubborn marks on glass. Present :2008 TDV8 HSE
Gone Audi A5 2.7TDI
Gone Discovery 3 HSE
Gone Mercedes CLK
Gone Range Rover 2.5 DSE

Thanks for all the ideas. I'll start with the clay bar and see what happens. Looks the goods for the paint too. The more I clean it, the more I want to keep cleaning it... Is detailing a Range Rover addictive... If so, I may be falling into this trap...

Cheers - Gav

the question remains is ,why the stains only on the rear windows.. ... - .- -.




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I never ever had a problem washing my cars when I lived in north-west WA and Gav's in Melbourne.

The greatest problem I had was the red dust acting as grinding paste and the intensity of the sun ageing the paintwork.

But I do accept that hard water could be a factor, other than Stan's latest reponse.

Maybe it's the way the car's parked (same spot and time when cleaned?) affecting only one area of the car, but that's an outside chance.

Look forward to finding out the solution (and cause).  Si. <This is my name.

I eat rat poison.

A man ain't truly been insulted until he stands buck naked in front of a woman and she didn't even notice. Or care.