Source for Heater Control Valve Diaphragm?

[BMWtyro]

I bought one from a source in Europe and installed it in our '84 633's heater control valve two years ago . . . and now has failed big-time (4mm x 10mm hole in diaphragm). Does anyone know of another source for diaphragms which will last longer?

Jeff

[carnut1947]

Might try a NAPA auto parts store. My 84 BMW used the same one for my 88 Mercedes 300SE! Mono valve repair kit.

[tschultz]

Find the part on real and there are plenty of online distributors. Just search the bmw part number in google...

[alpinacsi]

Plenty of sources for them and they are cheap. Cheap in price and cheap in quality. It seems like everybody has the same MTC kits.

[BMWtyro]

Thanks, guys. I was hoping to find just a good quality diaphragm, not the whole metal valve insert. I bought just a diaphragm last time, but it was obviously not of good quality.

Jeff

[DaHose]

I'm on my second repair and plenty pissed off about it.

I am reverse engineering with a 3/4", NO valve. I'll post what I come up with.

Jose

[BMWtyro]

Jose,

Were your last two valves BMWGen or off-brand? I ask because I've now resigned myself to buying a BMWGen piece.

No valve, huh? Isn't that going to let your interior get pretty toasty in CA . . ?

Jeff