BMW 5 Series: Automatic Engine Start/Stop 
Function - Driving - Controls - BMW 5 Series Owners ManualsBMW 5 Series: Automatic Engine Start/Stop Function

Automatic-Transmission
Switching off the engine 1. Engage transmission position P with the vehicle stopped. 2. Press the Start/Stop button. The engine is switched off. The radio ready state is switched on. 3. Set th ...

The concept
The automatic engine 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. ...

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Diesel
Fuel grade Only refuel with ULTRA-LOW SULFUR DIESEL FUEL (ULSD, 15 ppm SULFUR MAXIMUM). Using other diesel fuels could result in increased wear and damage to the engine and/or exhaust system. ...

Leaving the Vehicle with the Engine Running
WARNING! It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set. And, ...

Installing a Child Seat with a Lap/Shoulder Belt
When not using the LATCH system, all child seats must be secured to the vehicle with the lap part of a lap/ shoulder belt. In addition, the lap/shoulder belts in all seating positions except ...