over heating HG ?

jcastro · 03-23-2009, 03:50 AM

hi i was reading ur post and i have the same problom howd u find out it was heater matrix and what u do to fix it

mkIII supra turbo gav · 03-23-2009, 08:06 AM

hi i took the hose off going into tohe matrix and used a hose from the tap on it and left it running till the water came through clear and fast

Bill UK · 03-23-2009, 10:17 PM

You may still may have a problem with that in the summer, when you select the cold setting on the heater control; this operates a control valve on the bulkhead. (near the ABS unit on UK models) this shuts off any coolant going into the heater matrix. The coolant is then diverted back around the system from the pipe union at the rear of the head, which is the same as the heater matrix becoming blocked.

mkIII supra turbo gav · 03-23-2009, 10:22 PM

Quote:

Originally Posted by Bill UK

You may still may have a problem with that in the summer, when you select the cold setting on the heater control; this operates a control valve on the bulkhead. (near the ABS unit on UK models) this shuts off any coolant going into the heater matrix. The coolant is then diverted back around the system from the pipe union at the rear of the head, which is the same as the heater matrix becoming blocked.

i also changed the water pump which was leaking too

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03-23-2009, 03:50 AM	#1
jcastro 3" Exhaust Join Date: Mar 2009 Location: El Centro Posts: 113	hi i was reading ur post and i have the same problom howd u find out it was heater matrix and what u do to fix it

03-23-2009, 08:06 AM	#2
mkIII supra turbo gav Stock Join Date: Mar 2009 Location: bowdon cheshire in the good old UK Posts: 7	hi i took the hose off going into tohe matrix and used a hose from the tap on it and left it running till the water came through clear and fast

03-23-2009, 10:17 PM	#3
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	You may still may have a problem with that in the summer, when you select the cold setting on the heater control; this operates a control valve on the bulkhead. (near the ABS unit on UK models) this shuts off any coolant going into the heater matrix. The coolant is then diverted back around the system from the pipe union at the rear of the head, which is the same as the heater matrix becoming blocked.