I just purchased a 1983, 240D Turbo Automatic. It was a single owner and
he had a new transmission put in in 1998 which has approximately 25,000
on. Last evening I drove it about five or six miles and the AC ran fine -
air was cold in a short time. Today I drove the car about 25-30 miles and
it sure will run, but the AC does not get cold. I had to drive with the
down. When I pulled into the drive-way about ten minutes ago, I noticed a
belt(?) of some kind had broken and was hanging down from the front of the
car. The car will start and it can be driven. Could this 'belt' be
with the AC and is what is causing the problem, or is this 'belt' to
else? I have only had the car two days. Any help you can provide will be
Yes I do have the address of the mechanic who has performed all the work
on this car since it was initially ordered, but his shop is about forty
where I live. TIA for your help and advice.
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As ist is a 1983 model your has three such
One for the alternator and the engine water pump,
one for the power steering and one for the AC so
it is possible the AC belt is gone.
The latter belt runs horizontically on the lower
two big belt wheels.
Seen from the front of the car, located
behind the radiator the scheme is like this,
(3) is a smaller wheel than the other ones:
( 2 ) ( 6 )
( 1 ) ( 4 )
It is the one from ( 1 ) to ( 4 )
From ( 1 ) up to ( 2 ) and left to (3)
is the alternator belt, if that is gone the
little red warning light in the lower section
of the instrument cluster lights up,
from ( 1 ) sloping up to ( 6 ) is for the power
steering which causes the car's steering wheel
to turn extremely hard when the engine is running
and the car not moving (exactly as is when the
car's engine is not running).
Hope this helps, a bit difficult to explain for me.
1982 W123 240D auto Euro sedan w/o AC
Your observation of the broken belt is excellent; you've diagnosed the
problem - a broken belt.
That's why the A/C isn't cooling, its compressor is no longer being
driven by the engine.
I suggest you simply pull the broken belt out and save it for the shop
to get its size. Only do this with the engine OFF.
Any local shop can replace the belt, preferably one that works on German
cars. Belt about $10, labor $50.
Ask them to inspect the other belts for if one breaks the others may not
be far behind and you may as well replace all of them and be good for
some years to come.
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