Mark II Navigation System Component Overview

MARK II NAVIGATION SYSTEM

COMPONENT OVERVIEW
The X5 Mark II Navigation System is similar to E38/E39 Mark II. All of the E38/E39 Mark II system components are carried over with the exception of the BMBT:

X5 Specific Board Monitor (BMBT):
- 5 inch display (320 X 234 pixel resolution)
- Uses on screen soft keys for telephone send/end functions. E38/E39 uses buttons.
- Control of auxiliary ventilation function
- Provides display and control functions for the Audio System (radio, cassette and CD).
- Provides display and control functions for systems in the menu display.







- RDS = Radio Broadcast Data System. In the future, this feature will provide a wide variety of commercial broadcast data as well as traffic and limited weather information as a text display in the radio or Board Monitor display.
- PTY = The RDS system also includes the PTY feature that stands for "Program Type". PTY indicates the type of music being broadcast. This is helpful for organizing favorite station programming. Complete RDS functionality requires a cooperative effort on the part of the radio stations to provide this service. There are approximately 700 FM Radio Stations in the United States currently transmitting messages via RDS.







The BMBT communicates with interfacing control modules via I Bus. As with all previous Original Equipment Navigation Systems, the radio electronics are installed in the right rear. The BMBT sends and receives operation instructions to the radio via bus communication. The Mark II Nav computer continues to provide the ROB output signals to the BMBT for system function display.

X5 BOARD MONITOR & NAVIGATION SERVICE MODE DISPLAYS
The Mark II system provides a service mode display function. These screens provide system hardware/software identification numbers and status of Board Monitor and Navigation specific functions for use as a diagnostic tool. The screens are accessed as follows:
- From the Main Menu select "Set".
- Once in the Set function, press and hold the menu button for 8 seconds.
- The next screen to appear is the SERVICE MODE menu.







The first accessible function is "On-board monitor". Pressing this selection calls up the version screen which provides identification of hardware/software specific index versions for the installed system.

Pressing the functions key at the bottom continues into additional screens including the Key Functions and Brightness controls.

Key Functions tests the key input on the BMBT. Input status (1-25) will display in the window.

If no keys are pressed the status will be displayed as "FF".

Rotating the left or right rotary knob displays hex code input status.

Rotated slowly, the display changes with each increment. The display eventually stops at "1F" in the left rotated direction and "E0" to the right.

The key function test terminates automatically if no keys or knobs are moved after a short duration ("00").

The brightness control allows the display illumination to be manually adjusted.







The next accessible function is the NAVI/GRAPHIC ELEMENT

This screen identifies hardware/software specific index versions for the installed system.

The Video module selection is not functional since the US version Mark II nav system does not utilize the video module.







The next available selection from the service mode menu is "GPS".

This display provides the GPS receiver module hardware version number and date of programmed software.

Pressing the functions button in the lower right corner of this screen provides a subselection menu.

GPS Status provides information on the exact coordinates of the vehicle based on the calculations of the GPS receiver module.

GPS Tracking provides information about the individual satellites currently sending signals to the GPS receiver module. Though interesting, this display provides data which is not usable for BMW service technician scope of diagnosis.







The next selection available from the SERVICE MODE menu is 'Sensor check" which provides:
- Wheel speed input (only one wheel speed signal, displayed).
- Number of satellites detected.
- What mode the GPS receiver module is currently in; (ie: Search)
- The Gyro status provides the millivoltage value the Nav computer is utilizing for the current vehicle position. This area also includes an icon representing what direction the vehicle is heading in.
- The direction status indicates what gear is selected (forward or reverse).

The Sensor check display is intended to be used while test driving the vehicle. Use the legend below to compare with the display status.












The last selection available is the Telematics entry display. This replaces the 'VIN" selection from the E38/E39 Mark II systems. The only requirement of this entry screen is that the VIN is entered at the VPC when prepped prior to distribution.







This is necessary for the Emergency program if needed when calling the Cross Country Group Roadside Assistance Program.

Additionally, it the vehicle is equipped with a Phase V phone the system will automatically utilize the entered VIN as per E38/E39 Mark II systems.

The VIN is entered at the VPC for all vehicles (with or without a Phase V phone). If the VIN has been incorrectly entered it can be changed by turning and pressing the rotary knob when the correct letter or digit of the last seven character of the VIN is displayed.

The balance of the data displayed below the VIN entry is not currently used in the US market.