W126

Hi All, I was working on a Heater motor problem and made the tragic mistake of unpluging the radio while attempting to pull the ACC unit. My MB Tech. Companion said my particular radio was equiped with an anti- theft device that scrambles the radio when unsuspecting dolts like myself disconect them. Has anybody got any advise as to how to restore the settings? Thanks Mike Waine

Re: '82 300SD (new car for me). The first wiper position on the combo switch gives fast wiper speed, the second normal speed, and the third does nothing at all. I think the proper order is intermittent, then normal, then fast. Everything else on combo switch works fine. Should I get a new switch? How to I remove it to troubleshoot and/or replace? Need instructions. Thanks!

Hey gang! Thanks to Kaia and Mercedessource, we completed our journey from Boulder, CO back to Portland, ME in our just-puchased-that-evening 1982 300SD. We made the trip back to Maine in 34 hours flat, averaging 25 mpg. Thanks to your book(s), we diagnosed a clogged ALDA line heading from the intake to the sensor and wala, bugs no longer hit our back windshield as we crossed Iowa. The only thing, and only thing that really gave us trouble on the trip was, 3/4 way back, the heater motor just QUIT. The gentleman we bought the car from stated that he had replaced the 'control valves' - which I read as he replaced the push button array in the center console (which was confirmed by finding it half-bolted in).