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i have a vauxhall zafira 2.0 diesel and my heater is blowing only cold air ?

the heater is blowing only cold air and there is a chattering noise coming from a little motor at the back of the centre console under the dash. if i turn my hot and cold switch right to the bottom it stops the chattering??????? any ideas what the part is i will need and how to fix it. thanx.

steve
October 2008

Vauxhall Zafira Vehicles, Cars Vauxhall Diesel Air

To scot....how easy is it to replace the electronic valve.. could you give instructions please.

garham
February 2009

try replacing the pollen filter £10aprox, which is located behind the glove box to the right. i had a similar problem

dan
December 2008

it is possible to clear blocked heater matrix's with a tight fitting hose pipe, I wouldnt use a pressure washer...

jeremy
November 2008

I have seen heater matrix's almost completely blocked by sediment and rust on cars about 8 yrs old. This stopped heat being transfered effectively and you only got cold air.

the rattling could be a leaf or something trapped in the air system.

jeremy
November 2008

there is a electronic valve which bypasses the hot water from the engine which heats up the car to allow only cold air when cold is selected this failed on my car i replaced it with a modified vauxhall part which removes this valve

scott
November 2008

hi steve what is the coolant level like,this may seem a bit simple but you would be suprised how many people never check their water&oil (no offense intended)

dazzerdd
October 2008