i think there thermostat must be stuck open in my coupe. the temperature gauge stays on cold unless im stuck in traffic were it will creep up until the "normal" position, then when you start driving again the temp gauge drops again.
is this what i need? http://cgi.ebay.co.uk/ASTRA-1-8-2-0-...item45f61cb64f
or there is a more expensive one
both say they are for my car (i think my engine is X18XE1)
do i just need the pricier one if the housing is broke on mine?