Thermostat???

[GRINGOG60 0]

Chaps,

 

When i go on long drives sometimes i have niticed that when i turn the heater on it starts off hot and then goes cold- this has only started happening since the weather turned sh**ty - anyone had this before?

could be the thermostat having stuck closed? it never does it on short journeys though but when the engine goes above about 106C it starts happening...

 

i had this same problem on a 16 valve Mk2 Golf GTI that i had once but i never fixed it and just sold the car (to a mate ha ha :twisted: )

 

An of you guys got any ideas?

 

+ has anyone got the part number for the lower temp fan switch(180 degrees)????

[Ice White Socks 0]

Hi,

 

Whilst I would guess it would be more an air lock than anything else, I would get the stat checked just in case. My stat disintegrated last week and locked shut- needless to say what followed involved lots and lots of steam action :shock: I was lucky that I was only twenty yards away from a VW specialist- otherwise it would have been a long wait and a big recovery fee.

 

Cheers

 

Mike

[GRINGOG60 0]

Anyone know where the thermostat is on the G60- is it on the front of the block where the two o-ring sensors goin in to a black plastic housing at the top near the cylinder head ?- ive just replaced the main bearing shells in my pit in my garage last sunday and i really dont want the the lump getting to hot knackering the new shells.

[h100vw 0]

No it's in the front, under the charger. Plastic elbow coming off the pump. Access from underneath.

 

Gavin

[GRINGOG60 0]

Cheers Gavin i'll have a ganders tonight mate

 

Can ayone help with the lower fan temp switch part no. or what car it would come off - MK2 Golf GTI 8v?

[GazzaG60 0]

and remember the pump needs 2 outlets plus thermo not 1(a lesson learned after 6hrs of stripdown fun.

[GRINGOG60 0]

and remember the pump needs 2 outlets plus thermo not 1(a lesson learned after 6hrs of stripdown fun.

 

Im not sure what you mean mate?

[h100vw 0]

I do tho having sold him a pump for a carb car. Sorry mate!!! :oops:

 

There should be 3 outlets down the side of the pump not two. Including the thermostat elbow in both cases.

 

Gavin

[GazzaG60 0]

sorry i didn't read the original properly. i thought you were doing a pump change.

 

a lovely job esp at this time of yr.

[chuck 0]

Can ayone help with the lower fan temp switch part no. or what car it would come off - MK2 Golf GTI 8v?

 

you really need a lower temp thermostat too, otherwise your fan will be on constantly (it knackered my fan with a standard thermostat and lower thermoswitch after a couple of months).

 

The lower temp thermoswitch I used was from a VW transporter.

Part number is 251 959 481K (or 701 959 841) with temp ranges of 87-76'C/93-82'C.

 

Also see http://corrado.atx-hosting.co.uk/viewto ... ermoswitch.

 

By the way, your heater problem is probably caused by (if not an airlock), a sticky inlet valve. Check the inlet pipe on the engine side of the bulkhead - there should be a silver valve (adjacent to a black one on the outlet pipe). Take it out and stick a straigh thru pipe on. If this fixes it it need a new silver valve. Its designed to prevent excess water pressure from bursting the heater matrix by closing when the temp gets high.

This definately applys to 16v's, I dunno if the same system is used on the G60, but it must be similar as its the same heater.