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[brian36]

New dealer info
http://www.thurlownunn.co.uk/locations/milton-keynes/

thanks yip even know where it is pass it daily to and from work will get car looked at and get one asap if this the case thanks

[brian36]

As Marks DTM suggests, if its leaking when climate set to HI (for eg), try it with climate set to LO, or vice versa.  This usually points to HBV, about £30+VAT from dealer, trade, although avoid the scumbags at Crownhill (V4, between H5 and H4).  I'm told a new dealer has recently opened at Kingston, near the BP, on the way to the M1 Jnc 13. No idea if its Crownhill moving, or a separate dealership.

I'm in Brackley, on the Bucks/Northants/Oxon border if you need a 2nd opinion, or help.

will try in morning hard day need to sit down thanks

[brian36]

so the update, after initial leak which lost me about 2 inches in expansion tank i filled up and since then nothing. have had aircon on at hi and ran for about 15 mins then put on low for same i then drove back and forward work 2 days still ok weird or what?
will keep a eye on it but thanks to all

[05omegav6]

You'll most likely find it all escapes at one temperature setting. Try a different temp each day until it leaks...

The only consistency with HBV failure is that the temp is always different

[Andy H]

Symptoms are typical of HBV.

I would buy a new HBV anyway so that it is in the car ready to fit when the old one fails completely.

[brian36]

ok i reckon will buy one just in case and thanks again

[brian36]

As Marks DTM suggests, if its leaking when climate set to HI (for eg), try it with climate set to LO, or vice versa.  This usually points to HBV, about £30+VAT from dealer, trade, although avoid the scumbags at Crownhill (V4, between H5 and H4).  I'm told a new dealer has recently opened at Kingston, near the BP, on the way to the M1 Jnc 13. No idea if its Crownhill moving, or a separate dealership.

I'm in Brackley, on the Bucks/Northants/Oxon border if you need a 2nd opinion, or help.

theboy
hi would you be able to have a look if can get over to you this weekend if you are free? would appreciate it thanks

[TheBoy]

Had a gander at this today, although buggered if I could get it to leak, using the modified cap and pressurising to about 10psi method 

Valley is bone dry, no hint of leak from stat, cooler plate, bridge, HG (to outside of block). Good job there, Mr DTM

Bits of radiator that are visible all looked good, as did rad hoses. Curly hose from bridge to HBV looks good.

Tell tale signs ("rusty" look) of a leak around HBV, which would fit in with brian36's diagnosis of where he's seem coolant under car, and with his observations with the climate settings within the car.

Disappointing I couldn't 100% prove the leak, but given what I've seen, the HBV is what I would do