92corrado 0 Posted May 3, 2010 Hello everyone, Just got my hands on a really clean 92 vw corrado 1.8 16v, always wanted one and got a steal when this came up. Just noticed today that the heater was blowing cold when on the warm postion, checked the top hose, it was boiling but the bottom hose was just luke warm. I gave it a couple of squeezes and checked the heater it went warm again for about 5 mins, now its back to cold. where should i be looking first? the carpet mats dont appear to be wet, temp gauge sits around 80 degrees approx. Could this be the thermostat? looking forward to your replys regards Mark Quote Share this post Link to post Share on other sites
Jon_vr6 1 Posted May 3, 2010 thermostat or there is air in the system Quote Share this post Link to post Share on other sites
CazzaVR 0 Posted May 3, 2010 The bypass valve to the matrix could be shot. Happened on mine- just replaced it with some copper piping, and it warms up a treat again 8) Quote Share this post Link to post Share on other sites
92corrado 0 Posted May 3, 2010 Brilliant, will check in my dinner hour tomorrow. Thanks for the help Mark Quote Share this post Link to post Share on other sites