W 210 "webasto" problems
12-26-2007, 07:13 AM
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Join Date: Dec 2007
Location: Malaysia
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W211 E200 Kompressor
Hi
If your car is fitted with autoclimate system, you are able check the temp and many other things. Press 'rest' for a while until the codes appear on the LCD.
Displaying Information (AC Diagnostic Mode)
Press ”rest” for aprox 5 sec. Press then the left ”auto-button” a number of times to see the different channels. Mostly I
use number 22, that is the speed.
Pressing 'air up' and 'air down' you can
shift thru var ious a/ c diag registers.
Cycling digit s will show you reg number/ value.
01 In-car temperature sensor.
02 Outside temperature sensor.
03 Heater core temp, left.
04 Heater core temp, right.
05 Evaporator temperature sensor.
06 Engine coolant temperature.
07 Regrigerant pressure in bar (e.g. '4' is 4 bar).
08 Refrigerant temperature.
09 Not used.
10 Heater blower control voltage (normal 08-6.0, meaning .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 Control current for auxilliary fan (electric fan on radiator, given in milliamps or mA).
21 Engine speed (x100).
22 Road speed (km/h or mph depending on installation).
23 Battery voltage at terminal 58d (as a percentage of total voltage, e.g. 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 Climate control software version.
41 Climate control hardware version.
If your car is fitted with autoclimate system, you are able check the temp and many other things. Press 'rest' for a while until the codes appear on the LCD.
Displaying Information (AC Diagnostic Mode)
Press ”rest” for aprox 5 sec. Press then the left ”auto-button” a number of times to see the different channels. Mostly I
use number 22, that is the speed.
Pressing 'air up' and 'air down' you can
shift thru var ious a/ c diag registers.
Cycling digit s will show you reg number/ value.
01 In-car temperature sensor.
02 Outside temperature sensor.
03 Heater core temp, left.
04 Heater core temp, right.
05 Evaporator temperature sensor.
06 Engine coolant temperature.
07 Regrigerant pressure in bar (e.g. '4' is 4 bar).
08 Refrigerant temperature.
09 Not used.
10 Heater blower control voltage (normal 08-6.0, meaning .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 Control current for auxilliary fan (electric fan on radiator, given in milliamps or mA).
21 Engine speed (x100).
22 Road speed (km/h or mph depending on installation).
23 Battery voltage at terminal 58d (as a percentage of total voltage, e.g. 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 Climate control software version.
41 Climate control hardware version.
