The trip computer's menu is in a variable loop. One of the alternatives is that the trip computer's display extinguishes - this also marks the start/end of the loop.

OK - Opens the loop with the trip computer's functions + Activates the selected option.
Thumbwheel - Opens the loop with the trip computer's headings + Scrolls through the options.
RESET - Undoes, zeroes or backs out of a function after making a selection.
Functions
Proceed as follows to open and check/adjust functions:
- To ensure that no control is in the middle of a sequence - "Reset" them first with two presses on RESET.
 - Press OK - the loop with all functions opens.
 - Browse through the functions with the thumbwheel and select/confirm with OK.
 - Finish by pressing twice on RESET after completed checking/adjustment.
 
The different functions of the trip computer are listed in the following table:
| Functions | Information | 
|---|---|
  | Shows the car's speed digitally in the centre of the combined instrument panel: 
  | 
  | For a description of programming the timer, see Engine block heater and passenger compartment heater - timer. | 
  | For more information, see Additional heater. | 
  | Here you can select/activate the options that you want to be available as selectable headings in the trip computer. The symbols for the items already selected are WHITE with a "tick" - others are GREY and have no "tick": 
  | 
| Shows the number of months and mileage to next service. | |
| For more information, see Engine oil - checking and filling. | |
| For more information, see Messages - handling. | 
Headings
One of the headings in the following table can be selected for constant display in the combined instrument panel. Proceed as follows to determine which:
- To ensure that no control is in the middle of a sequence - "Reset" them first with two presses on RESET.
 - Turn the thumbwheel - selectable headings for the trip computer are shown in a loop.
 - Stop on desired heading.
 
| Trip computer heading in combined instrument panel | Information | 
|---|---|
| Trip meter T1 and total dist. | 
  | 
| Trip meter T2 and total dist. | 
  | 
| Distance to empty | For more information - see the section "Range - distance to empty tank". | 
| Fuel consumption | Current consumption. | 
| Average speed | 
  | 
| No trip computer information. | This option shows a blank display - it also marks the beginning/end of the loop. | 
The combined instrument panel's trip computer can be changed to another option at any time during the journey. Proceed as follows:
- Turn the thumbwheel - stop on the desired heading.
 
Resetting - Trip meter and Average speed
With the current trip computer heading - T1 and total dist.,T2 and total dist. or Average speed - shown in the combined instrument panel:
- Give a long press on RESET - selected heading is zeroed.
 
Each heading must be zeroed individually.