User manual BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53

[. . . ] Table of Contents ON-BOARD MONITOR AND NAVIGATION SYSTEMS Subject Page On-Board Monitor. 2 On-Board Monitor System Introduction . . 2 Components, Locations and Removal Information . . 4 On-Board Monitor and Navigation system interfaces . [. . . ] procedure consists of carrying out all five selections. Though they can be done individually with positive results, it is recommended to complete all five steps to achieve consistent positive results. Start at Setting Car Parameters and end with Finish Calibration. NOTE: If a new navigation computer is being calibrated for the first time, the individual buttons will not be selectable. The system will automatically go into a fixed sequence calibration requiring all steps be performed. A full dealer calibration On-Board Monitor and Navigation Systems 39 1. SETTING OF CAR PARAMETERS There are two settings parameters screen: in the The vehicles wheel base which will be an E38 long/short wheel base or an E39. The vehicles track which is as follows for the different vehicles: E38 - long = 1549 E38 - short = 1549 E39 = 1512 Changing these settings is not required unless a new Navigation computer is installed in the vehicle. If a new nav computer is being calibrated for the first time, enter the vehicle type. NOTE: These settings should be checked as part of the troubleshooting procedures to verify that they are correct. If the displayed setting does not match the figures above, momentarily select another vehicle type and switch back to the correct vehicle. The track width value will change to the displayed values as shown above. AFTERMARKET WHEELS OR SUSPENSION MODIFICATIONS: If the vehicle is equipped with aftermarket wheels or has modified suspension components, the track width may need to be manually adjusted. Do the following to obtain this figure: 1. With the vehicle on the ground (suspension loaded), measure the distance between the two front rims (inner rim tire bead lips) in millimeters and note the measurement. Measure the thickness of one front rim (inside lip to outside lip) using calipers and note the measurement. Turn the rotary knob to the vehicle type. Then turn the knob one click to the LEFT to access the track measurement. Turn the knob to enter the value manually. Press knob when finished. 40 On-Board Monitor and Navigation Systems 2. SENSOR TEST The Sensor Test performs a functional check of the wheel speed sensors and magnetic field sensor inputs to the navigation computer. This test must be carried out if the navigation computer is replaced. [. . . ] Check for interference of signals to GPS antenna, Check integrity of circuit from GPS antenna to nav computer. Replace Navigation computer. GPS Status: Gyro: See Legend below Direction icon moves with vehicle turning movement. Milli voltage display value should be approx 2500 mV (+/- 400mV) when the vehicle is stationary or driven straight ahead. When the vehicle is turning, the signal voltage should increase on right hand turns and decrease on left hand turns. [. . . ]