Join Date: Apr 2008
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This is a bit of a guess, but I fixed a similar problem by replacing the one way valves in the line that stop the water draining back into the bottle. That was on a Punto, so no idea if it is the same on other cars!
Currently in martin999's garage:
2011 (11) VW Passat 2.0 TDi SE + options in Island Grey, 2011 (11) Honda CB1000R in Pearl Cool White... oh and a 2004 (54) Secnic II 1.5dCi Dynamique in Ottoman Blue !