First read and observe the introductory information
and safety warnings
Switching on the auxiliary heater: | ||
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Manually with the immediate heat button in the air conditioning controls. The indicator lamp in the button lights up. | |
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Manually with the remote control key. | |
Automatically with a programmed and activated departure time. |
Switching off the auxiliary heater: | ||
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Manually with the immediate heat button in the air conditioning controls. The indicator lamp in the button switches off. | |
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Manually with the remote control key. | |
Automatically when the programmed departure time is reached, or after the programmed operating period has elapsed. | ||
Automatically
if the indicator lamp ![]() |
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Automatically if the charge level of the vehicle battery is too low. |
Things to note
The auxiliary heater runs on for a short time after it is switched off so that the remaining fuel in the system can be burnt off. The exhaust gases in the system can also be emitted.
Air recirculation mode
First read and observe the introductory information
and safety warnings General notes
There are different types of air recirculation mode:
Manual
air recirculation mode (heating system, air conditioning (manual), Climatronic).
...
Incorporation of high-voltage heater (PTC) - Z115- into coolant circuit
Note
In vehicles with a high-voltage system, the high-voltage
heater (PTC) -Z115- is used as a supplementary heater.
In vehicles with a high-voltage system and an auxiliary
heater installed as optional equipment, the ...
Assembly overview - toothed belt, engine codes CPTA, CHPA, CZEA, CZDA
1 -
Toothed belt
Before removing, mark direction of rotation with chalk or
felt-tipped marker pen.
Check for wear
Removing
→ Chapter
Installing (adjusting valve timing), CPTA, CZEA
& ...