114 INSTRUMENTS AND CONTROLS
Optional: A 6-level retarder stalk switch mounted to the right of the steering column. An
ON/OFF switch at the end of the stalk lever enables/disables the engine brake.
W3005373
CLIMATE CONTROL SYSTEMS
There are two different air conditioning systems. Depending on your vehicle, you will have
one of these two air conditioning units installed:
1 Electronic Climate Control (EEC)
2 Manual Climate Control (MCC)
Note: For both climate control systems (ECC and MCC), after a pre-determined number of
"vehicle starts" the climate unit will recalibrate the door positions, which may take several
seconds before the airflow returns to the selected distribution mode.