Originally posted by richardodn.
Bmw e30 heater valve replacement.
The bentley repair manual will guide you through accessing the valve and the core.
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.
If we suspect the heater core there isn t much to do other than replace it.
Hose from the back of the head goes to the inlet on the heater core.
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.
I have gone through a few heater valves.
In particular the heater valves get stuck or blocked hoses explode the auxiliary pump seizes up leaks and then the end drops off.
Guts break replace whole valve with another used valve repeat.
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 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.
Bmw heater control valves reviews.
This time i bought a rebuild kit from blunttech.
I was able to change both on my 325ic.
If the bmw e31 has a weak spot it s the cooling system.
You will need to replace the two o rings that reside between the valve and the core.
E30 heater control valve repair.
If the valve is fine we likely have a partially clogged heater core.
There is a good article on how to replace the the value and heater core.
Metrix w0133 1663471 mtx hvac heater control valve.
Designed utilizing the latest technology this product features premium quality and will perform better than advertised.
The inlet pipe is the one with the valve.
Rebuild is a very simple process.