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#1
07-10-2003, 03:34 PM
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450SL Temperature Control
Just new o the forum.
Have a 1979 450SL and am experiencing temperature control problems. We do not get any heat at all and the AC temp is always full cold. Any ideas ? 
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#2
07-11-2003, 12:08 AM
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Sure, tell us how you do it
 Many times we have the opposite problem...constant heat and a busted AC system. Seriously, not sure why the AC would always stay on.
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#3
07-13-2003, 10:26 PM
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I had the same problem on my '78 450L. I replaced the temperature control dial and the amplifier. Haven't had a problem since. Good luck.
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#4
07-14-2003, 08:23 AM
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I had the same problem Darrell described. THe ac amplifier fixed that. The po replaced the servo-unit to fix the lack of heat.
__________________
Mark Herzig 1995 E300D 153K 1985 300D 142K (sold) 1979 450SL 122 miles (sold) 1992 500E 127K (sold) 1987 300SDL 132K (sold) 1986 300E 161K (sold)
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