Can anyone Identify the high and low side connections for the AC. I can see one on the left side up top, but where is the second one??? I want to check the to see if I have enough freon.. When i pull the numbers from the AC controller the value for number 5 is reading 129.. and the value for number 7 is 02.. I believe that's the pressure..

Peter

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Peter L. House
1998 Sport E430
Azure Blue
110,000k Miles

1987 Oldsmobile Cutlass Salon
V8 Bucket Seats
Factory Moon Roof

Yes, that is the pressure & 2 bar X 15 = only 30psi. Should be 6-7 bar (06-07)

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MERCEDES Benz Master Guild Technician (6 TIMES)
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44 years foreign automotive repair
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

The high pressure schrader is behind the grill on the front, on the driver's side. I'm not sure about the codes, take a look here for info...

http://www.continentalimports.com/ser_ic40142.html

I think #5 is temp in the evaporator housing, not a pressure.

Good luck,

Peter

Hello I added some freon.. And the pressure came up to 7-8 with the car running.. then I got cold air, the left center vent was blowing a little warm at first.. I still think I have a bad vacuum leak on that side, I can hear it..
The number 5 value is still high, like 120 I think that is too high..

Peter

__________________
Peter L. House
1998 Sport E430
Azure Blue
110,000k Miles

1987 Oldsmobile Cutlass Salon
V8 Bucket Seats
Factory Moon Roof

Were did you apply the freon, I can not find the valve.