STD Maintenance General Air conditioner woes

Air conditioner woes

Air conditioner woes

 
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sassparilla_kid
diesel > all other fuels

1,618
06-03-2012, 06:09 PM #1
I just went to recharge my A/C a little bit ago, and the stupid compressor isn't kicking in. I turned it on full blast and hooked up my little charging thing to low pressure side and I guess it filled that side up but the compressor wasn't doing anything.

I am pretty certain the compressor is good since its only a year old, so I'm guessing that its something vacuum or electrical related. So if anybody has any suggestions, they're much appreciated because the 103*F summer heat is here (although its supposed to cool off this week) and I would really really really like to have air conditioning again

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
06-03-2012, 06:09 PM #1

I just went to recharge my A/C a little bit ago, and the stupid compressor isn't kicking in. I turned it on full blast and hooked up my little charging thing to low pressure side and I guess it filled that side up but the compressor wasn't doing anything.

I am pretty certain the compressor is good since its only a year old, so I'm guessing that its something vacuum or electrical related. So if anybody has any suggestions, they're much appreciated because the 103*F summer heat is here (although its supposed to cool off this week) and I would really really really like to have air conditioning again


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

DeliveryValve
Superturbo

1,338
06-04-2012, 12:05 AM #2
(06-03-2012, 06:09 PM)sassparilla_kid I just went to recharge my A/C a little bit ago, and the stupid compressor isn't kicking in. I turned it on full blast and hooked up my little charging thing to low pressure side and I guess it filled that side up but the compressor wasn't doing anything.

I am pretty certain the compressor is good since its only a year old, so I'm guessing that its something vacuum or electrical related. So if anybody has any suggestions, they're much appreciated because the 103*F summer heat is here (although its supposed to cool off this week) and I would really really really like to have air conditioning again

Try jumping the two blue leads going into the pressure sensor on the dryer together. This will kick in the clutch. If the clutch doesn't kick in, then test the the leads with a light lead tester. If that doesn't work, then there is something in the electrical circuit that is hopefully easy to fix.




.

Gota love Mercedes Diesels!



.
DeliveryValve
06-04-2012, 12:05 AM #2

(06-03-2012, 06:09 PM)sassparilla_kid I just went to recharge my A/C a little bit ago, and the stupid compressor isn't kicking in. I turned it on full blast and hooked up my little charging thing to low pressure side and I guess it filled that side up but the compressor wasn't doing anything.

I am pretty certain the compressor is good since its only a year old, so I'm guessing that its something vacuum or electrical related. So if anybody has any suggestions, they're much appreciated because the 103*F summer heat is here (although its supposed to cool off this week) and I would really really really like to have air conditioning again

Try jumping the two blue leads going into the pressure sensor on the dryer together. This will kick in the clutch. If the clutch doesn't kick in, then test the the leads with a light lead tester. If that doesn't work, then there is something in the electrical circuit that is hopefully easy to fix.




.


Gota love Mercedes Diesels!



.

sassparilla_kid
diesel > all other fuels

1,618
06-14-2012, 11:47 PM #3
Tried jumping them (I think/hope it was the right ones, it was dark out and no flashlight lol) and no compressor clutch magic, so I'll try testing them out with a test lamp

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
06-14-2012, 11:47 PM #3

Tried jumping them (I think/hope it was the right ones, it was dark out and no flashlight lol) and no compressor clutch magic, so I'll try testing them out with a test lamp


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

winmutt
bitbanger

3,468
06-20-2012, 10:21 PM #4
Try again with light. Does the 82 have a OVP relay/fuse? I know the 85 does...

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
06-20-2012, 10:21 PM #4

Try again with light. Does the 82 have a OVP relay/fuse? I know the 85 does...


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

sassparilla_kid
diesel > all other fuels

1,618
06-20-2012, 10:53 PM #5
No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
06-20-2012, 10:53 PM #5

No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

sassparilla_kid
diesel > all other fuels

1,618
07-14-2012, 06:08 PM #6
Okay, I tried to two leads on the pressure sensor/switch/whatever on the receiver/drier with a test lamp, here is what I did:

1. With tester grounded, checked first lead, which had power
2. Still grounded, checked other lead for shits and giggles, and nothing as expected
3. No current when the tester was connected between the leads

I guess this means there is an electrical problem somewhere, and I should probably check where that faulty lead goes to, unless somebody knows offhand and wants to let me in on the secret!!

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-14-2012, 06:08 PM #6

Okay, I tried to two leads on the pressure sensor/switch/whatever on the receiver/drier with a test lamp, here is what I did:

1. With tester grounded, checked first lead, which had power
2. Still grounded, checked other lead for shits and giggles, and nothing as expected
3. No current when the tester was connected between the leads

I guess this means there is an electrical problem somewhere, and I should probably check where that faulty lead goes to, unless somebody knows offhand and wants to let me in on the secret!!


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

sassparilla_kid
diesel > all other fuels

1,618
07-15-2012, 06:44 PM #7
Ahhhhh shhhheeeeeeeyyyyyiiiittttttttttttttt. I checked the wiring diagrams in the back of my Haynes manual (couldn't find my Mercedes Air Conditioning fsm Angry) and determined I should check the connection at the compressor, and when I looked a stupid wire had pulled out of a shitty connector, so I fixed it all up and got the compressor to kick on!!! Unfortunately the system is pretty much empty, and I don't have anything to fill it with, and Napa is closed so I guess I have to wait until tomorrow to go buy some Duracool and then hopefully I will have air conditioning again. Last week it was 109*F here and it was no fun working with 90 acres of sprinklers, and then having to drive home in the same heat.

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-15-2012, 06:44 PM #7

Ahhhhh shhhheeeeeeeyyyyyiiiittttttttttttttt. I checked the wiring diagrams in the back of my Haynes manual (couldn't find my Mercedes Air Conditioning fsm Angry) and determined I should check the connection at the compressor, and when I looked a stupid wire had pulled out of a shitty connector, so I fixed it all up and got the compressor to kick on!!! Unfortunately the system is pretty much empty, and I don't have anything to fill it with, and Napa is closed so I guess I have to wait until tomorrow to go buy some Duracool and then hopefully I will have air conditioning again. Last week it was 109*F here and it was no fun working with 90 acres of sprinklers, and then having to drive home in the same heat.


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

larsalan
Superturbo

1,272
07-16-2012, 05:50 AM #8
I would say just man up. That a/c is sapping power from you and that compressor and shit weighs a ton. I took mine off and it really looks nicer in the engine bay. And I still have 4 windows, sunroof, and a jug of water.
Wink

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
07-16-2012, 05:50 AM #8

I would say just man up. That a/c is sapping power from you and that compressor and shit weighs a ton. I took mine off and it really looks nicer in the engine bay. And I still have 4 windows, sunroof, and a jug of water.
Wink


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

led-panzer
Holset

541
07-16-2012, 11:43 AM #9
(07-16-2012, 05:50 AM)larsalan I would say just man up. That a/c is sapping power from you and that compressor and shit weighs a ton. I took mine off and it really looks nicer in the engine bay. And I still have 4 windows, sunroof, and a jug of water.
Wink

Hear hear Cool

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
07-16-2012, 11:43 AM #9

(07-16-2012, 05:50 AM)larsalan I would say just man up. That a/c is sapping power from you and that compressor and shit weighs a ton. I took mine off and it really looks nicer in the engine bay. And I still have 4 windows, sunroof, and a jug of water.
Wink

Hear hear Cool


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

sassparilla_kid
diesel > all other fuels

1,618
07-16-2012, 09:17 PM #10
(06-20-2012, 10:53 PM)sassparilla_kid No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol

I did that for a while, actually, like 3 or 4 years, until last summer, and then since last fall after it stopped working again. All I have to say is, do you work on a farm, and does it get 109*F there regularly?

Cold air is the shit, no question about it. Besides, just tune your car up to make up for that power lost by turning the compressor, or just don't turn it on until you get up to speed and you won't even notice it.

Also, chicas no les gusta entrar en las coches calientes, y yo gusta chicas

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-16-2012, 09:17 PM #10

(06-20-2012, 10:53 PM)sassparilla_kid No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol

I did that for a while, actually, like 3 or 4 years, until last summer, and then since last fall after it stopped working again. All I have to say is, do you work on a farm, and does it get 109*F there regularly?

Cold air is the shit, no question about it. Besides, just tune your car up to make up for that power lost by turning the compressor, or just don't turn it on until you get up to speed and you won't even notice it.

Also, chicas no les gusta entrar en las coches calientes, y yo gusta chicas


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

larsalan
Superturbo

1,272
07-16-2012, 10:30 PM #11
well, if it gets hot enough they start shedding clothes Wink

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
07-16-2012, 10:30 PM #11

well, if it gets hot enough they start shedding clothes Wink


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

Simpler=Better
PORTED HEAD

2,127
07-17-2012, 09:49 AM #12
(07-16-2012, 09:17 PM)sassparilla_kid
(06-20-2012, 10:53 PM)sassparilla_kid No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol

I did that for a while, actually, like 3 or 4 years, until last summer, and then since last fall after it stopped working again. All I have to say is, do you work on a farm, and does it get 109*F there regularly?

Cold air is the shit, no question about it. Besides, just tune your car up to make up for that power lost by turning the compressor, or just don't turn it on until you get up to speed and you won't even notice it.

Also, chicas no les gusta entrar en las coches calientes, y yo gusta chicas

I feel ya kid. Nothing like driving home covered in shit and being sweaty

Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
07-17-2012, 09:49 AM #12

(07-16-2012, 09:17 PM)sassparilla_kid
(06-20-2012, 10:53 PM)sassparilla_kid No idea, I guess I could probably look in my a/c factory shop manual to figure out more about what's goin on lol

I did that for a while, actually, like 3 or 4 years, until last summer, and then since last fall after it stopped working again. All I have to say is, do you work on a farm, and does it get 109*F there regularly?

Cold air is the shit, no question about it. Besides, just tune your car up to make up for that power lost by turning the compressor, or just don't turn it on until you get up to speed and you won't even notice it.

Also, chicas no les gusta entrar en las coches calientes, y yo gusta chicas

I feel ya kid. Nothing like driving home covered in shit and being sweaty


Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?

sassparilla_kid
diesel > all other fuels

1,618
07-17-2012, 07:52 PM #13
(07-16-2012, 10:30 PM)larsalan well, if it gets hot enough they start shedding clothes Wink

I have never had that happen. Please, tell me the secret to whatever it is you're doing to get these results lol HuhBig GrinTongue

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-17-2012, 07:52 PM #13

(07-16-2012, 10:30 PM)larsalan well, if it gets hot enough they start shedding clothes Wink

I have never had that happen. Please, tell me the secret to whatever it is you're doing to get these results lol HuhBig GrinTongue


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

larsalan
Superturbo

1,272
07-17-2012, 08:37 PM #14
Just add vodka Wink

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
07-17-2012, 08:37 PM #14

Just add vodka Wink


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

sassparilla_kid
diesel > all other fuels

1,618
07-17-2012, 08:39 PM #15
(07-17-2012, 08:37 PM)larsalan Just add vodka Wink

Okay, I will try this as soon as possible, and report back with the results. hahaa

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-17-2012, 08:39 PM #15

(07-17-2012, 08:37 PM)larsalan Just add vodka Wink

Okay, I will try this as soon as possible, and report back with the results. hahaa


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

 
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