however it did work in the 00 E240 is it something related to model yeaR??
A/C Diag Mode
Thread Starter
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,340
Likes: 22
From: Southern California, USA
2003 CL55 AMG
A/C Diag Mode
Some people know that your A/C display yields a wealth of information via a hidded DIAGNOSTIC mode.
Here is a picture of what the A/C in diag mode looks like. This particular mode shows engine rpm.
Here is a picture of what the A/C in diag mode looks like. This particular mode shows engine rpm.
Thread Starter
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,340
Likes: 22
From: Southern California, USA
2003 CL55 AMG
A/C Diag Mode.
To get into the Diag mode, with your engine running hold down the REST button for 5 seconds. Once in Diag. mode you can toggle through the various registers by pressing 'air up' and 'air down' .
Cycling digits will show you reg number/value. To exit Diag. mode, hit the REST button again.
Now their meaning (from the ones I know):
1 in-car temp
2 temp outside
3 heater core temp, left
4 heater core temp, right
5 evaporator core temp
6 engine coolant temp
7 refrigerant pressure (in bars)
8 refrigerant temp
9 not used
10 blower control voltage in range .8 - 6V (max)
11 air pollution sensor
12 sun sensor
20 control current of aux fan
21 engine RPM (x 100)
22 vehicle speed, km/h
23 terminal 58d battery charge, percent
24 battery voltage
40 software status register
41 hardware status register
To get into the Diag mode, with your engine running hold down the REST button for 5 seconds. Once in Diag. mode you can toggle through the various registers by pressing 'air up' and 'air down' .
Cycling digits will show you reg number/value. To exit Diag. mode, hit the REST button again.
Now their meaning (from the ones I know):
1 in-car temp
2 temp outside
3 heater core temp, left
4 heater core temp, right
5 evaporator core temp
6 engine coolant temp
7 refrigerant pressure (in bars)
8 refrigerant temp
9 not used
10 blower control voltage in range .8 - 6V (max)
11 air pollution sensor
12 sun sensor
20 control current of aux fan
21 engine RPM (x 100)
22 vehicle speed, km/h
23 terminal 58d battery charge, percent
24 battery voltage
40 software status register
41 hardware status register
Super Member
Joined: Nov 2001
Posts: 624
Likes: 2
From: Westchester County, NY
2013 E 350, 2012 GLK 350, 2012 C300 4matic
I have a 2002 CLK 430, it seems to work the same way, I don't think that the specific items are the same, does anyone happen to know the specifics for the older climate control system ?
Member
Joined: Nov 2002
Posts: 228
Likes: 0
From: Kuwait
I have a question about what some of these things are:
What is the Heater Core?
What is the Evaporator Core?
Refrigirant pressurE?
Blower control?
Aux. Fan? (What does it do?)
Terminal 58d Battery?
And Software/hardware status register?
Thank you for your help on making me understand these more.
Regards,
KU104
What is the Heater Core?
What is the Evaporator Core?
Refrigirant pressurE?
Blower control?
Aux. Fan? (What does it do?)
Terminal 58d Battery?
And Software/hardware status register?
Thank you for your help on making me understand these more.
Regards,
KU104
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MBWorld Fanatic!
Joined: Nov 2001
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From: SonicMS/SF Krew
'08 BMW e92 335i
can't change?
So this just displays what the settings are at right? how come when I was playing with this menu, the heater now blows only cool air? I'm gonna bring my car in to the dealership but it's been getting colder here.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,422
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From: SonicMS/SF Krew
'08 BMW e92 335i
temps seem lower
after getting into this menu, it seemed as though the temps were a lil off. the higher temps (75-83) wouldnt be as warm as they used to be. but i'd have to turn it up to 86- HI. i tried to do a system reset on the COMAND but I don't know if that does anything.. please shed some light on this. thanks
