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.
Bmw e30 heater valve replacement.
The value and heater core are separate components.
If we suspect the heater core there isn t much to do other than replace it.
E30 heater control valve repair.
Designed utilizing the latest technology this product features premium quality and will perform better than advertised.
If the valve is fine we likely have a partially clogged heater core.
You will need to replace the two o rings that reside between the valve and the core.
Note that the e30 models can have two different heater systems.
I have gone through a few heater valves.
The bentley repair manual will guide you through accessing the valve and the core.
Rebuild is a very simple process.
In particular the heater valves get stuck or blocked hoses explode the auxiliary pump seizes up leaks and then the end drops off.
I was able to change both on my 325ic.
Hose from the back of the head goes to the inlet on the heater core.
Looks like it is good.
If the bmw e31 has a weak spot it s the cooling system.
This time i bought a rebuild kit from blunttech.
There is a good article on how to replace the the value and heater core.
Metrix w0133 1663471 mtx hvac heater control valve.
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Bmw heater control valves reviews.
Why buy a new valve when the brass part does not wear out the kit includes everything but the brass shell.
Originally posted by richardodn.
Servo heater control valve replacement kit by vintage air.
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.