Description Possible causes, among others Possible remedy 
Fuse blown.  Check fuse and replace if necessary  
Fuel consumption higher than indicated. 
– Short hauls. – “Jumpy” accelerator pedal. 
– Avoid short distance driving. – 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. 
Towing a trailer or driving with a roof rack. – Check use. – Remove if not in use. 
Driving with heavy payload.  No direct corrective action possible. 
Driving at high engine speed.  Select a higher gear.