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  #1  
Old 06-25-2006, 06:21 AM
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Join Date: Jun 2006
Posts: 57
AC wont kick in on 1997 C180

i've posted some other post and asking some of the stuff like i do in here...

This is what i've done and checked out of other post's i've read..

1 compressor turns
2 Aux Fan turns when engine reach 185-195 F.. or 80-90 C
3 Cluch doesnt kick in (it does when jumping it, tested with motor of)
4 temp of center vent feals like outside air, but get's worm when temp wheel is tunred to hot
5 According to merc dealer who did a "quick" test with a screwdriver high press should be ok
6 no fuse has blown
7 cant see any leaks but might be a tiny tiny one...

Anybody got a step 8-13 or something ???
Would love to have this up'n running
If i have to charge up now, after 9 years.. should i flush it too or just add r134 + Oil ??
Some days the AC worked on and off, if i stoped the car for 5 sec and started again AC would work..
then after doing that for aprox 1 week it stoped working completly

thnks in advcane guys..

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1997 C180 Elegance My everyday car
1945 GMC 6x6 (something for the forest)

My previous Cars
1995 Opel Astra 1.6
1997 Renault Megane 2.0 (Never Again)
1984 Mazda 323
1977 Volvo 244
1966 Mercedes 230S

Last edited by MrOnline; 06-25-2006 at 06:57 AM.
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  #2  
Old 06-25-2006, 08:52 AM
LarryBible
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I have no idea what steps 8 through 13 consist of, but I do know that you missed step 1. Connect manifold gauges and check pressures. Post them here, then we can help further.

Good luck,
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  #3  
Old 06-25-2006, 11:29 AM
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Join Date: Jun 2006
Posts: 57
hmm

yeah i forgot that part, i'm getting a pressure tester tuesday :-)
Got load of work on monday so wont have time then
__________________
1997 C180 Elegance My everyday car
1945 GMC 6x6 (something for the forest)

My previous Cars
1995 Opel Astra 1.6
1997 Renault Megane 2.0 (Never Again)
1984 Mazda 323
1977 Volvo 244
1966 Mercedes 230S
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  #4  
Old 06-26-2006, 06:57 AM
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Join Date: Jun 2006
Posts: 57
something strange happend today

today after driver for aprox 45 min, doing a stop out at a customer for aprox 30 min, the AC kicked in all of a sudden... But after toping the fueltank the fuel "gauge/meter/tank dial" (not sure what it's called) stands at empty. It goes to full again if i stop, and turn key to position 1, then start the car, AC still works....

If the AC kicked in now isnt the "low freon" kinda out of the question then ? or can it still just be low on it and thats why it's now kicked in after not working for 1 week ???? I talked to the prev. owner of the car and he said it's been kinda weird working for last 6 months... that every now and then he had to turn AC of, then set fan speed to 3, and after a minunte or two turn AC back on and it worked...

Hope anybody can help me out a bit here....
__________________
1997 C180 Elegance My everyday car
1945 GMC 6x6 (something for the forest)

My previous Cars
1995 Opel Astra 1.6
1997 Renault Megane 2.0 (Never Again)
1984 Mazda 323
1977 Volvo 244
1966 Mercedes 230S
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  #5  
Old 06-26-2006, 10:18 PM
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Join Date: Oct 2005
Posts: 128
The most common reason I've seen for the compresor not engaging, assuming it's not burned up, is low freon, usually caused by a leak in the system. Sometimes the leak is so slow that you can get away with adding a little each cooling season. The pressure reading will prove this out. Good luck,

Don

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