I have gone through a few heater valves.
Bmw e30 heater valve replacement.
If the valve is fine we likely have a partially clogged heater core.
Designed utilizing the latest technology this product features premium quality and will perform better than advertised.
E30 heater control valve repair.
Hose from the back of the head goes to the inlet on the heater core.
Servo heater control valve replacement kit by vintage air.
This feature is shared with the e32 and e38 but one thing that isn t is the restorative heating there s no rest button in the e31 and the auxiliary water pump appears superfluous.
There is a good article on how to replace the the value and heater core.
I was able to change both on my 325ic.
Originally posted by richardodn.
If the bmw e31 has a weak spot it s the cooling system.
If we suspect the heater core there isn t much to do other than replace it.
In particular the heater valves get stuck or blocked hoses explode the auxiliary pump seizes up leaks and then the end drops off.
Why buy a new valve when the brass part does not wear out the kit includes everything but the brass shell.
Rebuild is a very simple process.
The bmw valve repair kit is a full kit of rubber parts for the bmw heater valve which lets you repair the heater without having to replace the valve.
You will need to replace the two o rings that reside between the valve and the core.
Metrix w0133 1663471 mtx hvac heater control valve.
Looks like it is good.
Guts break replace whole valve with another used valve repeat.
Instead of wasting hundreds of dollars and having to deal with a service center spend just a few dollars and fix the problem by yourself.
The value and heater core are separate components.
If this is your first visit be sure to check out the faq by clicking the link above.
Note that the e30 models can have two different heater systems.
The bentley repair manual will guide you through accessing the valve and the core.