Texas Heat Is No Joke! Please help AC problems
Thread Starter
Junior Member
Joined: Mar 2018
Posts: 57
Likes: 17
From: Dallas
14 E350 wagon
Texas Heat Is No Joke! Please help AC problems
Hello all,
Can someone with a little more knowledge than me take a look at these codes and let me know if something is wrong? 2002 CLK 430 coupe w/ 116k miles. EC button works fine, clutch and compressor seem fine, blower controls are fine, but all I get is slightly cool air. Not cold, but you can tell it's cooler than with the EC button engaged.
The only thing I tried was adding freon, because of number 7 being so low.
But the freon is not leaving the can, it seem to be a lot of pressure in the line.
I never had the problem before when refilling them
20min drive
1 - 27
2 - 34
3 - 30
4 - 30
5 - 29
6 - 97
7 - 0.7
8 - 33
9 - 0-1
10 - 0.8
20 - 00
21 - 6
22 - 00
23 - 10.0
24 - 13.6
40 - 71
41 - 36
42 - 72
43 - 13.6
01 The in-car temperature sensor.
02 The bumper temperature sensor.
03 The temperature of the left side heater core.
04 The temperature of the right side heater core.
05 The temperature at the evaporator sensor.
06 The engine coolant temperature.
07 The barometric pressure of the Freon.
08 The Freon temperature. 09 Blank.
10 The voltage at the heater blower control (normal is 08-6.0, which is .8 to 6 volts).
11 Emissions sensor voltage (to detect atmospheric gases and recirculate interior air).
12 Sun sensor voltage (to shift airflow in car).
20 The current at the auxiliary fan (the electric fan on radiator, in milliamps or mA).
21 Engine speed (x 100 RPM).
22 Vehicle speed (km/h or mph depending on installation).
23 The percentage of battery voltage at terminal 58d (a percentage of total voltage, 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 The climate control software version. - V8
41 The climate control hardware version. - V5
Any help is greatly appreciated!
Rodney,
Can someone with a little more knowledge than me take a look at these codes and let me know if something is wrong? 2002 CLK 430 coupe w/ 116k miles. EC button works fine, clutch and compressor seem fine, blower controls are fine, but all I get is slightly cool air. Not cold, but you can tell it's cooler than with the EC button engaged.
The only thing I tried was adding freon, because of number 7 being so low.
But the freon is not leaving the can, it seem to be a lot of pressure in the line.
I never had the problem before when refilling them
20min drive
1 - 27
2 - 34
3 - 30
4 - 30
5 - 29
6 - 97
7 - 0.7
8 - 33
9 - 0-1
10 - 0.8
20 - 00
21 - 6
22 - 00
23 - 10.0
24 - 13.6
40 - 71
41 - 36
42 - 72
43 - 13.6
01 The in-car temperature sensor.
02 The bumper temperature sensor.
03 The temperature of the left side heater core.
04 The temperature of the right side heater core.
05 The temperature at the evaporator sensor.
06 The engine coolant temperature.
07 The barometric pressure of the Freon.
08 The Freon temperature. 09 Blank.
10 The voltage at the heater blower control (normal is 08-6.0, which is .8 to 6 volts).
11 Emissions sensor voltage (to detect atmospheric gases and recirculate interior air).
12 Sun sensor voltage (to shift airflow in car).
20 The current at the auxiliary fan (the electric fan on radiator, in milliamps or mA).
21 Engine speed (x 100 RPM).
22 Vehicle speed (km/h or mph depending on installation).
23 The percentage of battery voltage at terminal 58d (a percentage of total voltage, 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 The climate control software version. - V8
41 The climate control hardware version. - V5
Any help is greatly appreciated!
Rodney,
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,258
Likes: 209
From: Boston North Shore
2001 CLK320 Cabrio
What you posted, are just your current HVAC actual parameter values.
It's difficult to diagnose/repair HVAC w/o getting/understanding the source of failure.
From the above, you'll be able to access your stored Diagnostic Trouble Codes.
Last edited by Serndipity; Mar 27, 2018 at 05:12 PM.
Super Member
Joined: Mar 2005
Posts: 932
Likes: 38
From: North of Boston
The compressor will not come on as a safety measure for compressor...when freon is too low...if you don't clear the codes/faults...it will never come on irregardless if you filled freon (not freon...newer refrigerant). After clear faults ...per above, it should engage.
Thread Starter
Junior Member
Joined: Mar 2018
Posts: 57
Likes: 17
From: Dallas
14 E350 wagon
These are my AC fault codes
EB1235
234
I will drive the car tomorrow. hopefully, that leads to something else.
Thread Starter
Junior Member
Joined: Mar 2018
Posts: 57
Likes: 17
From: Dallas
14 E350 wagon
I ran into a problem where I kept getting low coolant alert. so I checked under that hood and notice, it was wet under the control module box.
Of course, it was coolant my guess it was coming from the mono-valve, so i parked her for a few days.
Now a week later and it been dry also no low coolant alert.
But No AC, So I plan on trying this
tomorrow, to see if this helps...
Of course, it was coolant my guess it was coming from the mono-valve, so i parked her for a few days.
Now a week later and it been dry also no low coolant alert.
But No AC, So I plan on trying this
tomorrow, to see if this helps...
