Workshop Hints
Workshop Hints
Replacing the Mk-3 navigation computer
When replacing the Mk-3 navigation computer be aware that there are two hardware variants depending on the installation position (vertical or horizontal).
The ignition should be in position 0 during removal and replacement of the computer. After installing, close all doors, hood and trunk. A bus line reset will be carried out within two minutes. Resetting allows the gyro to perform a calibration run. Do not move the car during this reset period.
The coding sequence for the Mk-3 navigation computer has been changed from the previous Mk-2. There is now an additional step (configuration) that must be done before the software can be loaded.
After resetting, a configuration signal is needed to allow the computer to load the correct software for use with a board monitor or MIR. This is performed using the, DIS coding program (CD 22.0 onward) and the Navigation System operating software (CD V15.0 onward).
NOTE: Vehicles using the wide screen BM require CD V16.1 onward.
1. From the DIS/MoDiC Coding/Programming select "1 ZCS Coding"
2. Select the appropriate series (E46, E39, E38, E52, E53)
3. Select "4 Conversion"
4. Select "3 IKE/Kombi"
5. Select "2 language"
6. At the prompt "is the CD ROM present?" select yes, but do not install the operating software CD ROM yet.
7. First select the main language and then an additional language. (i.e. English-Spanish)
8. Select the gender of the navigation audio voice.
9. Select "automatic coding-yes"
10. After coding is done the DIS/MoDiC instructs you to follow the instructions on the monitor for the installation of the Navigation System CD ROM.
11. Place the navigation system software in the navigation computer CD drive.
Important: Do not switch the ignition off during the software loading procedure. Do not use any software for the Mk-3 earlier than CD V15.0.
12. Once loading has been completed, remove the CD and then confirm completion by pressing the rotary push-button on the monitor.
13. Turn off the key for 10 seconds, then turn it back on and conduct a functional check.
14. After this step has been finished, encode the navigation computer using the "Recoding" path in ZCS Coding. The coding process involves coding vehicle specific data: VIN, Model, Telematics data etc.
The software status can be confirmed from the "Set" screen for Mk-3 systems.
- 3 = Third generation system Mk-3.
- 1 = Device variant (1 = Color screen, 2 = MIR monochrome screen).
- 20 = Software version of the graphic component (Version 2.0).
After the navigation computer has been successfully programmed and coded the vehicle should be left in an area with a clear view of the sky with the key in KL R for at least 15 minutes to complete the calibration process.
Service Mode
Just as Mk-2, Mk-3 provides an on-screen service mode for diagnosis. The service mode provides five different test screens:
- On-board monitor
- Navigation/Graphic element
- GPS
- Sensor Check
- Telematics
To enter the Navigation Service Mode:
- Turn the ignition key to position 1 (KL R).
- From the Menu screen select "SET".
- Once in the Set screen, press and hold the "MENU" button for 8 seconds.
- The Service Mode menu will appear on the display.
- Select from the Service Mode menu for navigation specific tests.
Diagnosis
Diagnosis is carried out using Test Modules in the Diagnosis Program as well as on-screen in the Service mode.The Sensor Check display is intended to be used while test driving the vehicle. The following pages contain charts with explanations of the Service Mode display.
