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'00 e320 wagon
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Discussion Starter #1
First off Thank you for your help on this site it is Awesome. Wifes car A/C went out and she checked the codes through the system. 1234, 1241, 1416, 1419. Firgured probably had a leak and ried putting Freon in and it would not accept. Took to a garage who said it was the compressor and $1,000 or so to fix. Decided to change with help from a friend. We changed out the compressor, dryer, and hose off the dryer. Vacuumed it down and tried to add freon. Still not taking it and compressor not kicking on. Went through the climate control screen to do the tasks to allow the compressor to take freon and still nothing. Checked fuses and all look good. However could not locate the one for the A/C unit specifically Used test light on all of them. Checked codes again to try and narrow down issue and only one showing now is the 1233 code. Not sure about that sensor. Next thought is the pressure switch but not sure about that either.
Any suggestions on what step would be next to get the compressor to come on to add freon would be absolutely accepted.
 

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1998 E320 base sedan @ 160kmiles
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Hello :)
Went through the climate control screen to do the tasks to allow the compressor to take freon and still nothing.
What is it that you did ?
 

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'00 e320 wagon
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Discussion Starter #3
used this sequence found in the forum

If you want the compressor on to fill.
1. Switch the ignition on (position 2).
2. Set the left temperature to 'HI' and the right temperature to 'LO'.
3. Switch the ignition off.
4. While holding the 'REST' button, switch the ignition on (position 2). On the left side, 'P1' will flash and on the right side, a code will be displayed.
5. Press the 'EC' button twice so that the left side flashes 'P2'.
6. Using the right side red temperature increase button, add 16 to the value.
7. Press the 'EC button again to store the updated code.
8. Turn the ignition off.
 

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1998 E320 base sedan @ 160kmiles
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6,678 Posts
What does P2 read now ?

You can just post all sensor values from 01 to 43 (or whatever the last value) with the key in position 2 and a/c on (static reading).
 

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1998 E320 base sedan @ 160kmiles
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6,678 Posts
Also make sure that the refrigerant temp sensor on the drier is plugged in properly..
 

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1998 E320 base sedan @ 160kmiles
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6,678 Posts
Your P2 was 152 and you added 16 and made it 168 which is incorrect value. P2 = 152 was the right value to turn OFF the refrigerant pressure sensor check, for compressor protection.

In any case post the sensor values. per attached, starting from item 2 (ignition ON).
STAR TekInfo
 

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'00 e320 wagon
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Discussion Starter #8
(1 ) 69 (2) 64 (3) 93 ( 4) 89
(5) 75 (6) 102 (7) 00 (8) 71
(9) 27 (10) .8 (11) 2.4 (12) 4.3
(20) 3.2 (21) 32 (22) 00 (23). 32
(24) 11.3 (40) 164 (41) 85 (42) 40
(43) 168
 

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1998 E320 base sedan @ 160kmiles
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6,678 Posts
Change P2 to 152 and re-try. Maybe the compressor clutch is not engaging.
 

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'00 e320 wagon
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Discussion Starter #10
I did not notice it engaging when we attempted freon. Will change it back to 152 and try again tomorrow afternoon. Would the pressure or temp sensor keep the clutch from engaging? Late here and have to work early in morning.
 

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E320/E250 Bluetec Ford F350 6.7l
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Vacuumed system should take some REFRIGERANT at least close can pressure, what is ca 60 psi, compressor running or not.
Sounds like you have problem with charging hardware?
 

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1998 E320 base sedan @ 160kmiles
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What brand compressor did you buy ? Sometimes the clutch clearance needs adjusting. You can check the compressor engagement manually by applying 12V to the compressor top connector.

By setting P2 to 152, the controller will activate the compressor regardless of pressure reading. The temp reading for the refrigerant seems plausible.
 

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'00 e320 wagon
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Discussion Starter #13

NAPA
Air Conditioning Compressor with Clutch
Part #: TEM 275638
Line: NAPA Temp Products


we had ordered :
Denso AC Compressor; Complete with Clutch; 7SB16C
P/N: 0002307011

from autohausAZ but the wrong compressor was sent in the correct compressor box, we needed to get the vehicle back on the road so we went to napa and was able to get the NAPA one overnight and decided to wait to fix the incorrect compressor with autohaus afterward

are our readings we provided correct?
 

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1998 E320 base sedan @ 160kmiles
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The values look fine except 43 which is P2=168. When you change it back to 152, 43 will read 152.

With the original compressor that failed, you had a 1419 code which clearly indicates that the compressor had seized (the coil that controls the clutch plate has a fuse and it had opened due to heat generated from the slipping belt). No amount of charging attempt would have restored the a/c anyway. If the new compressor hub is not turning with the engine running, and a/c is selected (make sure that the EC button is NOT lit), then it is the controller issue. If the EC button is lit, the compressor will not run, and it will not suck the refrigerant in.

After you restore the P2 value, run the diagnostics again and clear all codes, and turn the ignition switch off then On. You need to get the compressor running.
 

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Discussion Starter #16
Ok just got home and reset to 152 and checked codes. No codes showing. Turned on vehicle and still not able to add freon. Also tried the jump start for compressor and it did not kick on. Did the jump start from the pressure switch. Test light also did not pick up any juice going to the pressure switch. Where would the fuse be to check that? Just checking to see if the expansion valves would cause this issue. Did not change them.
 

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1998 E320 base sedan @ 160kmiles
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Get the 12V somewhere else. The pressure sensor gets 5V from the controller, not 12V.
 

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1999 E320, 2000 E320, 2003 E320 Wagon, 2005 C230K SS, 2010 Accord LX w Eibach & Koni FSD's
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Vacuumed system should take some REFRIGERANT at least close can pressure, what is ca 60 psi, compressor running or not.
Sounds like you have problem with charging hardware?
Vacuum or not...................one can should go in. Check your equipment like Kajtek suggested.
 

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1998 E320 base sedan @ 160kmiles
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Yeah, just turn the valve and let some refrigerant out from the charge hose. This will also purge the air from the hose.
 

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Discussion Starter #20
Ok compressor came on with alternate power. Still not taking freon. Have tried it with pressure machine (same as vacuum) Also tried the store-bought ones with the gauge.
 
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