Expansion tank
Expansion tank
Author
Discussion

TVR8BLACK

Original Poster:

1,405 posts

152 months

Wednesday 8th July 2015
quotequote all
After a good drive no probs and temps raise and lower as normal
But when I stop and park up I get three blasts of steam that come out of the expansion tank cap
Have I overfilled tank or maybe faulty cap when cold tank is almost empty

Gazzab

21,549 posts

305 months

Wednesday 8th July 2015
quotequote all
Could it be either time for a new cap or bleed the system of air?

jackwibble

664 posts

182 months

Thursday 9th July 2015
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Sounds like a faulty valve in the cap is a good possibility cheap swap go for genuine VW one then try a bleed as Gazza said.

TVR8BLACK

Original Poster:

1,405 posts

152 months

Thursday 9th July 2015
quotequote all
I've ordered new Audi cap as the tank is from an Audi 100 £3.50 so may be just faulty also I'll bleed system too