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Old 11-18-2012, 01:34 PM
my123ca my123ca is offline
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Join Date: Mar 2005
Location: SoCal
Posts: 662
Quote:
Originally Posted by audley115 View Post
I have inspected both monovalves that have gone bad this year. There appears to be a small tab on the inside of the rubber gasket, and both valves tore exactly on this spot. The new valve (installed yesterday, and working perfectly) also has a tab which you can feel through the rubber. I am wondering how long this one will last. I'll try and post a phot as soon as I figure it out.

The MTC monovalve costs approximately $36. The OEM (Benz) is $138.
Our web host sells it for $15 last time i looked. Next time when it happens again, feel and clean inside the monovalve. Maybe there is a burr or rust. In my experience, the OEM will last over a year. The MTC one around 3 months and i set the temp at either max cold or heat so the monovalve wont be oscillating all the time.
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'85 300D Cal 280,000 miles
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