Calibration of auto-pilot system - AN82.61-P-1002-07B

Models 129, 140, 163, 168, 170, 202, 208, 210,220 

System description 

Start-up step 6 applies only for units which have already been installed in a vehicle and initially calibrated.

Fig 1: Identifying Auto-Pilot System

Vehicles as of 7/99 can be operated only with an Audio 30 APS radio with part number 208 820 XX XX. Units with part number 168 820 XX XX are not capable of communicating with the steering wheel control.

On vehicles as of 7/99 it is necessary to release the auto-pilot system Audio 30 APS with the diagnosis feature.

Units with navigation CD "Audio 30 APS 3.0"  can be started up with accelerated calibration on vehicles as of 1998 (see "Accelerated Start-Up").

	Start-up step	Action on keypad	Feedback on display
	Accelerated start-up
1	Start engine
2	Switch on Audio 30 APS with ON button	Enter code (see CODE card) with the multifunction keys below the numbers in the display field and confirm with "search key".	CODE 1 2 3 4 5 6 7 8
3	Insert update CD (only on new units delivered with an update CD)	Follow menu guidance
4	Insert navigation CD	Loading may require several minutes
5	Navigation menu	Call up navigation menu by pressing NAV button	LANGUAGE POS TIME WHEEL
6	Erase initial calibration	Applies only if unit has been calibrated initially. By turning on the right control knob (10) select menu "ENTER ADDRESS" and confirm by pressing control knob (10).  Press multifunction key 2, then 7 and release simultaneously. Press CAL multifunction key.	CAL
		By turning the right control knob (10) select menu "ERASE CALIBRATION" and confirm by pressing the control knob (10).	After a certain waiting time the basic navigation menu appears
7	Start-up	Park vehicle outside with Audio 30 APS switched on (minimum time for receiving GPS satellite signals approx. 30 min.). Call up navigation menu by pressing NAV button	LANGUAGE POS TIME WHEEL
8	Select language	Select desired language by pressing the multifunction key "SPRA"
9	Enter tire size	Enter the tire size by pressing the multifunction key "WHEEL" and confirm by pressing the right control knob (10)
10	Perform calibration drive	The duration of the calibration drive depends on the vehicle model and number of changes in direction. It can be between 30 km and 100 km and can be interrupted at any time for as long as desired. Drive Audio 30 APS at least 300 meters straight ahead in the radio mode and then turn correctly to the right or left (min. 60°), drive another 300 meters straight ahead and then turn again, etc. It makes no difference for the calibration if the course of the road does not allow the vehicle to be driven the specified route straight ahead or to turn min. 60°. This only increases the length of the route to be driven. Calibration is completed when the location is indicated in the AUDIO mode (without active objective guidance) when the INFO button is pressed. However, the location can only be displayed when the vehicle is driven on a digitized road.
11	Perform test drive	Call up navigation menu by pressing the NAV multifunction button. Enter destination (see operating instructions) and drive to destination.

	Start-up step	Action on keypad	Feedback on display
	Accelerated start-up
1	Insert navigation CD	Loading time can take several minutes
2	Navigation menu	Call navigation menu by pressing NAV button	LANGUAGE POS TIME WHEEL
3	Call default calibration values	Select the menu "ADDRESS ENTRY" by turning right knob (10) and confirm by pressing knob (10). Press multifunction buttons 2 and 7 one after another and then release simultaneously. Press multifunction button KAL.	CAL
		Select the menu "Calibration value defaults" by turning right knob (10) and confirm by pressing knob (10).	Vehicle menu appears
4	Enter type of vehicle	Select given entry, e.g. MB pass. car. Only for vehicles as of model year 1998.	MB pass. car
5	Enter tire parameters	Enter complete values	Wheel
6	Store parameters	Select entry "Store values"	System restart
		The vehicle is now calibrated and is ready for use with GPS reception of "Fix ZD". A calibration drive is no longer required.