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Model specific boards => Golf mk4 => Topic started by: Mk2_tel on 22 May 2012, 21:33

Title: expansion bottle leaking water out of lid
Post by: Mk2_tel on 22 May 2012, 21:33

ive bought a new lid dont look any differnt. the black center bit has its black rubber. is there a bigger o-ring which sills the lip to the tanks a picture of a correct one would be great cheers

Title: Re: expansion bottle leaking water out of lid
Post by: harlemex on 23 May 2012, 00:09

your engine is overheating.  :shocked:

Title: Re: expansion bottle leaking water out of lid
Post by: cullygti on 23 May 2012, 21:23

head gasket maybe is the only reason i know of for water/ coolant to come out of the expansion bottle

Title: Re: expansion bottle leaking water out of lid
Post by: Mk2_tel on 23 May 2012, 22:25

how i stop my engine over heating? temp dont go over 90 if it does then its only a little bit?

Title: Re: expansion bottle leaking water out of lid
Post by: mcgee9t2 on 23 May 2012, 22:32

if head gaskets gone then a air bubble could have possibly got into the cooling system and formed were the sensor is meaning you get a reading on 90 when really its 100 odd or so?

Title: Re: expansion bottle leaking water out of lid
Post by: Mk2_tel on 24 May 2012, 21:10

ive had a pressure test done there is no leaks. and takes ages to lose half litre of water. but touch wood since i put new cap on all is good

Title: Re: expansion bottle leaking water out of lid
Post by: dan2252 on 24 May 2012, 23:23

i know on newer vws they did a recall for coolant caps changed them too a black cap instead of blue as the blue ones leaked out as yours does