You could also try unplugging the electric aux coolant pump. That's what often toasts the later-version pushbutton controls as they are NOT fused separately. They usually seize, and they don't actually do much. As a Canadian, I know cold...
Dan wrote: > >Allan, > >There is a retrofit kit for a larger strip fuse for the W123 blowers if yours >hasn?t already been updated. It?s a wiring harness with an external fuse >holder that was used to bypass the original 16 amp fuse in the fuse box. Last >one I bought a couple years ago was under $20 from the dealer. > >126 540 30 13 is the part number. Around $20. > >-D > >> On Feb 22, 2019, at 11:27 AM, Allan Streib via Mercedes >> <mercedes@okiebenz.com> wrote: >> >> Wow I need exactly this for mine. >> >> I've been thinking about trying to reverse engineer the system and >> use something like a Raspberry Pi to control it -- but $335 sounds >> well worth it, if it works. >> >> I also need a new blower motor -- mine keeps blowing fuses. It only runs >> on "HI DEFROST" due to the failed control system. I've tried lubricating >> it but hasn't helped. Unless there is NOS available anywhere I'm >> guessing most salvage motors would not be much better. I'm hoping I can >> fit a standard 12v motor from somewhere but haven't started researching >> that. >> >> Allan >> >> David Bruckmann via Mercedes <mercedes@okiebenz.com> writes: >> >>> I put an aftermarket system into my '79 300SD. Easy to install and works >>> well. >>> >>> Electronic Update Kit for Mercedes Automatic Climate Control Servo System >>> 1973-1982 >>> Unit price: $335.00 USD >>> https://mercedesfix.com/products/climatecontrol >>> _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
