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Model specific boards => Golf mk2 => Topic started by: m4nesh on 24 October 2003, 10:29

Title: by-pass valve
Post by: m4nesh on 24 October 2003, 10:29

Hello All,

Can anyone tell me exactly where the by-pass valve is?

Is it easy to change?

how much for a new one?

is it the grey metal thing on one of the rubber pipes going into the car from the engine(digi)?


Your help would be much appreciated!

Title: Re:by-pass valve
Post by: richandhazel on 24 October 2003, 12:30

I think its on the coolant pipes going through the bulkhead to the heater matrix. I've read an article about it somewhere, I'll try and dig it out.........failing that, golfvr6 is quite clued up on it.

Title: Re:by-pass valve
Post by: richandhazel on 24 October 2003, 12:37

Just found this at Matey-Matey:-

Heater Matrix Failure: If the heaters blast out damp air then the heater matrix has burst. All Mk2s were recalled to have a pressure relief valve fitted to prevent this occurring. Check to see if the recall has been carried out. One of the hot water pipes that go through the bulkhead should have been cut and the valve added. If not then take the car to VAG and get it done (No expense)

http://www.matey-matey.com/golf_buying_guide6.shtml

Title: Re:by-pass valve
Post by: golfvr6 on 24 October 2003, 14:02

Rich is spot on there, as usual  ::)

Title: Re:by-pass valve
Post by: carloscdt on 24 October 2003, 15:46

I had this valve done on recall, and about 5 yrs later the heater
matrix started leaking. Just about to change it when my local
independant told me to take it back to VW as there was an admission by VW that this didn't always prevent the matrix from bursting. (Plastic ends instead of the original metal apparentley).Contacted the Dealer and no problem.
14 yr old golf in the workshop - Dash out , new matrix in,
?350 invoice FOC.

Title: Re:by-pass valve
Post by: m4nesh on 24 October 2003, 16:06

 

cheers guys but what is the bulk head?

Is the by pass valve silver?

p.s. i gotta 91 8v

Title: Re:by-pass valve
Post by: richandhazel on 24 October 2003, 16:12

The bulkhead is the structure that seperates the engine bay from the passenger cabin.

Title: Re:by-pass valve
Post by: m4nesh on 24 October 2003, 18:04

can anyone tell me if the by-pass valve is connected either end by hoses and is silver?

Is it cheap and easy to replace??


Cheers

Title: Re:by-pass valve
Post by: golfvr6 on 24 October 2003, 23:59

It is silver. It goes between the 2 hoses that go into the bulkhead, just to the left of the coolant header tank.

Title: GolfVR6
Post by: m4nesh on 25 October 2003, 20:23

Hey, GolfVR6

Can you help

Got a dodgy warm heater and been advised to first look at the by-pass-valve, how do you check it and is it cheap coz if it is i might aswell replace it?

Gonna flush the coolant aswell

Cheers

Manesh

Title: Re:by-pass valve
Post by: golfvr6 on 26 October 2003, 00:04

Change the valve and flush the coolant. Can't be too expensive.