coolant flush on a4

[Ado Sigal]

no1of consequence wrote:

> hey kids,
>
> my new-to-me a4 1.8t has not-red coolant in it. its green. i want to 
> flush it out, audi claims they have a pressue flushing machine that 
> gets all the old coolant and muck out. but its like 300$ for the 
> service. yikes.
>
> anyone have details on this? is it worth doing? or will the old 'run a 
> few engine-fulls of distilled h20 thru it' trick do just as well? is 
> it true that the different coolants will crystallize inside the engine 
> if mixed? i know bentley says not to mix them, but it doesnt really 
> give a reason.
>
> thanx in advance.
> jim
>
>
Stealer is lying. Its true that blue and pink (G12) can't be mixed, but 
VAG now produces new fluid (G12 plus), also pink, that can be mixed with 
both old types. Both of them have been discontinued, and in Suisse G12 
plus is the only one available. Done it on Urq, Passat, and S2 couple of 
months ago. Mix it with distilled, but you can flush the system with tap 
water.

Cheers,

Ado