AMP its the amp
when my servo broke I did not have hot air.
Prior to that my amp was replaced and the AC came alive. no cool air prior to that.
my servo broke later again and I had no hot air.
I bypassed it.
experiences may vary.
1979 300D
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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents)
*SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD