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The fuel gauge displays the contents of the tank when the ignition is on.
For information on fuel quality and refill capacities:
For information on refueling:
If the vehicle’s inclination changes (e.g. uphill/ downhill driving), minor deviations in the gauge may occur.
Fuel reserve warning
If less than approximately 4 US gallons (15 liters) of fuel (3.43 US gallons (13 liters) for the Cayenne Diesel and Cayenne S Hybrid) remains in the tank or if the range on remaining fuel is less than approx. 30 miles (50 km), a warning message appears on the multi-function display of the instrument panel and the warning light in the fuel gauge comes on.
A shortage of fuel may damage the emission control system.
For information on the emission control system:
The warning message "Fault Generator" will appear on the multi-function display of the instrument panel if the vehicle electrical system voltage drops significantly or if there is a problem with the alternator.
For information on warning messages on the multi-function display:
Broken Drive Belt
A broken drive belt means there is no power assistance to the steering (more effort is required to steer) and engine cooling fails.
Slipping Drive Belt
Danger of steering assistance failing during a long journey in water if the drive belt slips.
Risk of engine damage.
A broken drive belt will cause the engine cooling system to fail.
Check Engine (Emission control)
The emission control system detects malfunctions early that could cause increased pollutant emissions or consequential damage etc.
Faults are indicated by the warning light on the instrument panel which then either lights up continuously or flashes.
The faults are recorded in the control unit’s fault memory.
The warning light in the instrument panel lights up for a lamp check when the ignition is switched on.
The warning light on the instrument panel flashes to indicate operating states (e.g. engine misfiring) that may damage certain parts of the emission control system.
In order to avoid consequential damage to the engine or the exhaust-gas cleaning system (e.g. catalytic converter):