First read and observe the introductory information
and safety warnings 
In some vehicles, the instrument cluster will show which gear should be selected while the vehicle is in motion to reduce fuel consumption.
Display | Meaning |
---|---|
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The current gear is optimal. |
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A higher gear is recommended. |
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A lower gear is recommended. |
In vehicles with a manual gearbox the recommended gear will be indicated in the form of a number and a recommendation to shift up or down into the gear shown will be displayed in the form of an arrow.
In vehicles with an automatic gearbox if the selector lever is in the tiptronic position, the current gear will be indicated in the form of a number and a recommendation to shift up or down a gear will be displayed in the form of an arrow   .
Information on cleaning the diesel particulate filter
The exhaust management system detects when a diesel particulate filter is filling up and aids the filter's self-cleaning process by recommending the most suitable gear when driving. This may mean driving with increased engine speed in exceptional cases   .
CAUTION
Driving in the correct gear can reduce fuel consumption.
Gear-change indicator display goes out when the clutch is depressed in vehicles with a manual gearbox or when Tiptronic position is deselected in vehicles with an automatic gearbox.
Restrictor
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
system.
Only use tools and materials approved by the
manufactu ...
Connecting Service Station
Turn off the ignition.
–
Connect the A/C service station to the power supply.
–
Connect quick-release coupling adapter to charging hoses of
service station (handwheels not screwed in/ha ...
Indicator lamps and fuel gauge
Fig. 129 In the instrument cluster: Variants
A and B: fuel gauges for petrol and diesel. Variant C: fuel gauge for autogas
First read and observe the introductory information
and safety warnings 
Lit up
Needle position 
Possible cause †...