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Hello,

I have a 2006 2.5 R5 Diesel Touareg.

At the weekend a warning came on stating insufficient coolant.
Upon inspection the coolant bottle was empty but there was no signs of any leak anywhere.
I filled it back up to MAX (took 2lt of fluid), I had to drive home around 120 miles when I got back and the engine cooled down, it had dropped between MAX and MIN.

I have been trawling the forums to figure out where the coolant could be going and common issues reported are EGR cooler, water pump or head gasket.


To funnel this down other symptoms have have are:

White smoke on high revs (have noticed this for a few weeks).

No sign of coolant in the oil as no mayonnaise looking gunk, also no increase in the oil level.

I unclipped the air pipe that connects into the EGR valve / inlet manifold and can see signs of coolant lying in the pipe and at the base of the EGR valve.

Based on these symptoms would I be right in thinking this is a fault in the EGR cooler? Is coolant leaking into exhaust gas and then into the inlet manifold/exhast?

Its slightly worrying finding coolant in the EGR valve, am I at risk of hydrolock?
With 2 lts of coolant missing it mostly must have gone out the exhaust.


Can anyone help advise on this? Am I on the right track?

Thanks,

Jon
 

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Broaden your audience for help and post this on the UK site too.

www.mytreg.com

You must only used distilled water or the correct VW coolant to top up at all times.
 
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