I ignored initially it but seems to happen more often now. When it rains or after a car wash this watery green liquid trickle from the rear wheel arches. Any ideas what it could be?

That looks like coolant. But yours should be pink no? Is the coolant in your system green?

 

'

 

It looks a lot like the green fluorescent dye used in a lot of automotive products anyhow.

 

What color is your brake fluid? Could be that?

Edited 23 March, 20197 yr by digifish
adding info

Hi friend,

Better you have to let your car dry up and then to lift it up or to go under it somehow in order to inspect very carefully what it is. From the first look it seems like coolant but this is at the front section of the car and not at the rear....As #digfish mentioned mentioned this could be brake fluid....Definetly you have to inspect underneath the car with a torch .....

GoodLuck

Andreas

Hi, You don't have any fluids in your car that are this colour as it left the factory . From the looks of the wheel and paint your car is pretty new so you're unlikely to have swapped the pink coolant out. Aircon just drips water and it's not oil. It isn't brake fluid . As a left field suggestion, check in the spare wheel well and see if there's a split bottle of screenwasher fluid in there. Also consider that there could be a leak in the rear screen jet feed pipe- if there is then the water has to get out somehow and it will take the path of least resistance.

What does it smell like?

Don't taste it, you might have a seriously ill dog in the neighbour hood..........

 

Can of tyre gunk leaking in the boot floor area?

Quickly clean it up before it burns through the floor!

Time to book it in with the local dealer. Only seems to happen when it rains or after a car wash which is odd. 

 What engine / gearbox does the car have?

 

I'd say that is DSG gearbox oil, probably landing on the plastic car undertray and first emerging at the first open location - aka wheelarch.

 

Urgent attention required before major damage done.

 

Look at the colour of the fluid on this video:- 

 

 

Search for green here:-

 

https://axleaddict.com/auto-repair/Common-Faults-in-the-7-Speed-DSG-Automatic-Transmission

 

PS Brake fluid is not green!

 

 

Edited 23 March, 20197 yr by bigjohn

4 hours ago, bigjohn said:

 What engine / gearbox does the car have?

 

I'd say that is DSG gearbox oil...

 

PS Brake fluid is not green!

 

 

Indeed, and after looking it's Mechatronics fluid, which is basically power steering fluid with green dye in it, rather than the usual red. So it seems his Mechatronics system is leaking OR possibly more likely, they spilled a bunch doing a top-up. DSG oil is the usual motor-oil straw yellow.

That is not 7 speed dsg oil it only takes about 0.7l to fill it any way and it would not drip out the back of the car, 

 

Did you say it only happens when it rains to it could well be a blocked drain or back of the arch liner full of moss and tree  crap and the water collects around it then drains out catching bits of it causing it to be that colour 

18 minutes ago, Superb-pop said:

That is not 7 speed dsg oil it only takes about 0.7l to fill it any way and it would not drip out the back of the car, 

 

 

Doesn't the car have a full length plastic "under belly" - driving would push any fluids front to back..

 

The original poster needs to feel and smell the dropped fluid? Also as the OP is called New2018 - I doubt if it could have had enough time to block anything up - and usually if I've encountered fluid from blocked sunroofs it's usually brown/black and smelly!

Edited 24 March, 20197 yr by bigjohn

I'd be very careful about tasting this because if he has hit an alien the fluid could be acid. I've seen the film and it's pretty nasty stuff.

Yes it does but the subframe is in the middle of them it would drip out of there 

 

The only things i have seen drip out of the back of a car that colour is air con pag oil from a leaking pipe but that is only when a car has a rear evaporator like on a Sharan 

Very odd! I have booked the car for check up this Thursday will revert back with an update. 

23 hours ago, bigjohn said:

 What engine / gearbox does the car have?

 

I'd say that is DSG gearbox oil, probably landing on the plastic car undertray and first emerging at the first open location - aka wheelarch.

 

Urgent attention required before major damage done.

 

Look at the colour of the fluid on this video:- 

 

 

Search for green here:-

 

https://axleaddict.com/auto-repair/Common-Faults-in-the-7-Speed-DSG-Automatic-Transmission

 

PS Brake fluid is not green!

 

 

Mine is 220 6speed which I believe is wet.

 

Thats a very similar color, nothing appears at the front wheel arches only the bank two.

Edited 24 March, 20197 yr by New2018

3 hours ago, Superb-pop said:

That is not 7 speed dsg oil it only takes about 0.7l to fill it any way and it would not drip out the back of the car, 

 

Did you say it only happens when it rains to it could well be a blocked drain or back of the arch liner full of moss and tree  crap and the water collects around it then drains out catching bits of it causing it to be that colour 

 That’s correct only happens when it’s wet. I noticed it more after I wash car. It’s very odd. 

3 hours ago, New2018 said:

 That’s correct only happens when it’s wet. I noticed it more after I wash car. It’s very odd. 

 

So does it feel watery or oily? What does it smell like? Does it evaporate, or remain?

Edited 25 March, 20197 yr by digifish

Bit left field but could it be the shampoo you're using?

What colour is your screen wash, looks exactly like the Halfords stuff I used to buy that looks like it came out of The Predator

It comes out at night .... Mostly...

looks like my halfords green screen wash. is it leaking inside and drying, then the rain/wash water washing it out and re-suspending the colour?

@New2018 has a hatchback/sedan.

Here in Oz, we don't get the option of having a rear wiper on the hatchback, hence no washer fluid running towards the back, or possibility of leaking at the rear.

Edited 26 March, 20197 yr by JR RS

Any news on the suspicious Predator Wound evidence ?? 

Sorry, they jacked the car up checked everything. Washed the car and nothing came out. The mechanics said none of the car fluids are green coloured so this is very odd. 

 

Told me to monitor closely so they can pinpoint the exact source inside the wheel arch.