BMW 3 Owners & Service Manuals

BMW 3: Coasting

Concept

Under certain conditions the engine is automatically decoupled from the transmission in the D selector lever position. The vehicle continues traveling with the engine idling to reduce consumption.

Selector lever position D remains engaged.

This driving condition is referred to as coasting.

As soon as you step on the brake or accelerator pedal, the engine is automatically coupled again.

General information

Coasting is a component of the ECO PRO driving mode.

Coasting is automatically activated when ECO PRO mode is called via the Driving Dynamics Control.

A proactive driving style helps the driver to use the function often and supports the efficient effect of coasting.

Functional requirements

The function is available in the speed range from approx. 16 mph/25 km/h to 100 mph/160 km/h.

The function is active if the following conditions are met:

  • Accelerator pedal not depressed.
  • Brake pedal not depressed or only slightly depressed.
  • The selector lever is in selector lever position D.
  • Engine and transmission are at operating temperature.
  • Active Cruise Control with Stop&Go function, ACC, not activated.

Operation via shift paddles

Concept

The coasting driving condition can be influenced with the shift paddles.

Activating/deactivating coasting via shift paddles

1. Shift to the highest gear by pulling the right shift paddle.

2. To activate coasting mode, actuate the right shift paddle again.

To deactivate, actuate the left shift paddle.

Display

Display in the instrument cluster

The coasting distance traveled is indicated in coasting mode.

Indications on the Control Display

The coasting mode is displayed under energy flow while driving.

The distance traveled in coasting mode is displayed in the trip data.

Saving fuel

Color code blue: coasting mode.

Displaying energy flow information

Via iDrive:

1. "CAR".

2. "Driving information".

3. "Energy flow".

System limits

The function is not available under one of the following conditions.

  • DSC OFF or TRACTION activated.
  • Driving in the dynamic limit range and on steep uphill or downhill grades.
  • Battery charge status temporarily too low or vehicle electrical system drawing excessive current.

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