what coolant to run green or red/pink ?

[aaron001au]

hey all just got a quick question about coolant , my 2001 mk4 golf 1.6 AKL has green coolant in it and i don't think it came factory with green coolant in it ? correct me if im wrong ?

now if i was to change it to the red/pink coolant that i think its meant to have in what problems if any would i run in to ?

i would have to flush the cooling system rather well to insure that all the green coolant is out of the system/ heater core before adding the new pink / red coolant yes ?

any info or input to this would be great as im going to do my thermostat soon and want to buy the correct coolant before i start

[Jharra]

Pink


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[Jharra]

It has to have pink


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[aaron001au]

why pink / red is it more of a anti-corrosion thing , there a blue coolant now also what the go with that ?

[aaron001au]

just had a look in my vw manual that was in the car and it says G12 red coolant only , is it just casue its a anti corrosion thing ? why would green coolant have been put in there instead of red/pink then ? , could this have cause any problems ?

[Umai Naa!!]

Do a full back-flush, and run the G12+ pink in it.

[aaron001au]

That's what I was thinking , I'll have to flush it rather well but won't i , I have herd if you leave the green in and add the red it turns to goo and clogs everything is that correct ?

[JustCruisn]

As stated already, flush out the green and replace with the correct g12+
Remove the line from the oil cooler to get the last of it out

[aaron001au]

Yep will do , forgot about the oil cooler thanks for reminding me

[RolfGolf]

Flush REALLY well like you say - you don't want to mix coolant types.

[aaron001au]

Will do ill prob flush it for a good 30 mins or so

[aaron001au]

Going to pick up some red coolant tomorrow , is there a certain way i should be flushing the system or just hook the hose and and pump water throw till i don't see any green stuff coming out ????

might even flush it and run water for a day or so just to be safe that its all out ???

[dylan8]

Just thought I'd put it out there...
I've run green coolant in mine since the day I got it (think it was in there already too...), never had an issue.
That's 7.5years and 180,000km at least.
Its not the end of the world if you do

[aaron001au]

Mine dosent over heat or anything I was just going to do the thermostat and thought while it's apart I would put the right coolant in it ....

[LeStig]

Can't remember the actual branding but the green coolant I used specifically stated it was suitable for VW and Audi.... Not suggesting every green coolant variant is suitable or unsuitable .... As I'm sure not every pink variation meets vag standards either .....
Read the label as to the standards and or manufacturers specifications for the particular product your thinking of using ....