See also:

The concept
The Auto Start/Stop function helps save fuel. The system switches off the engine during a stop, e.g., in a traffic congestion or at traffic lights. The ignition remains switched on. The engine s ...

Lingering Issues
The X5 hasn't aged well. The styling — unchanged since the second generation hit dealerships in late 2006 — looks expressive up front but ham-handed in back. From the glove compartment to the cent ...

Use coasting conditions
When approaching a red light, take your foot off the accelerator and let the vehicle coast to a halt. On a downhill gradient, take your foot off the accelerator and let the vehicle roll. The flo ...