Volkswagen Eos Owner's Manual page 326

Possible causes, among
Description Possible remedy
others
Fuel consumption higher – Short hauls. – Avoid short distance driving.
than indicated. – "Jumpy" accelerator pedal. – Drive defensively.
– Accelerate smoothly.
Electrical loads switched on. Switch off unnecessary loads.
Engine control malfunction. Have the malfunction corrected
Tire pressure too low. Adjust tire pressure
Driving in the mountains. No direct corrective action possible.
– Check use.
Towing a trailer.
– Remove if not in use.
Driving with heavy payload. No direct corrective action possible.
Driving at high engine speed. Select a higher gear.
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