Situation

**The following Navigation System MK II (from 09/97 production) failures/malfunctions may be experienced by the customers:

1. The screen remains dark or shows only the status bar (at the bottom) after the vehicle was started.

After turning ignition on (KL 15), no display appears in the on-board monitor except for the status bar. The background lighting of the screen is dark gray. Time display in the status bar is not being updated. Situation can be corrected by turning ignition OFF, waiting at least 1 minute, and then turning it ON again.

2. The screen darkens during driving ("black" or "blank" screen) and the system reboots.
The on-board monitor intermittently blanks-out during driving when the Navigation System is operating. After a few seconds, the screen reappears and the system reboots. Then, the main menu (if radio was previously turned off) or the audio/BC display shows on the screen. In some cases the screen remains black, and reappears again only after turning ignition OFF, waiting at least 1 minute, and then turning it ON again. In the "main menu" screen the "Navigation" feature can not be selected (Navigation button is not highlighted).

3. A route intermittently runs in a loop.
Intermittently, the map of the planned route appears on the on-board monitor as a loop, or the route guidance instruction runs in a loop (e.g. at the intersection route guidance proposes a different direction then the one which was calculated initially, and after following this direction for a while, either: instructs to make a "U-turn", or describes a route back to the original junction where the turn was executed).

4. Inaccuracies in the vehicle position indicator or implausible route guidance information. Extended "reaction" time of the Navigation System in route guidance and planning, after vehicle departs from the originally planned route.
Intermittently, incorrect distances are displayed at intersections or highway exits (e.g. 200 feet or more). Situation is sporadic and can not be reproduced in the same location (reproducible faults would indicate error in the CD map).

Or, vehicle position cursor on the map display drifts away from the road or runs alongside the road. This situation results in implausible guidance information (system "tries" to return to the originally planned route), and in some cases the message: "You are leaving the digitized area" is sent by the system.

5. On-board computer (BC) data missing from the on-board display.
After ignition key is turned "ON" (KL15) and screen is changed from "main menu" to radio/BC display, the displayed board computer data is not complete. In most cases the missing values are: Range, Ambient Temperature, or Fuel Consumption. Sometimes, those values may reappear during driving of the vehicle.

6. Route guidance intermittently remains active following "Destination Reached" display.
If the vehicle's ignition was turned "OFF" in the very moment the "Destination Reached" message was displayed on the board monitor, the route guidance to that destination may remain active the next time the vehicle is driven (Navigation instructions are given, even though the "Navigation" button was not selected from the "main menu" screen).**