Fall will soon be here in New England, my favorite time to drive the old bucket. However, not without a little heat. For the first time ever, I have a vintage MB 108 M130 with a strong functioning heater blower, 4 smooth operating levers but this time, NO HEAT. Not even a wisp of warm air when plowing along at 70 MPH (the AC unit puts out warm air so maybe I can use that!). I have the radio out and shipped off to Becker in NJ for refurb so, I can lube up the levers while I am waiting for it’s return as a matter of prudence.

Can anyone recommend a place to start troubleshooting this? My other cars had great heat but no blower. Had the blower done on my 4.5 way back but that's not the problem with my 71 6cyl.

Many thanks.

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Present
1971 280SE W108

1967 250SE W111
Rhode Island
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Auf Wiedersehen
1972 280SE 4.5 (AKA Das Moneypitten)
1972 250C (Mit den zwei carburetors from hell)

"Time fly’s like an arrow, fruit flies like a banana" Groucho Marx