i'm new to this site and this is my first post. I've got a problem with my little Z3. It's a 1.9 1997 model. Recently the heater has been playing up. only actually providing hot air on the very odd occassion. more recently though the best it can manage is a very luke warm at best and even more recently, no hot air at all.
any ideas what this might be? If it's thermostat. how can i check this and is it easy to replace myself?
Thanks in advance.