BMW 3 Owners & Service Manuals

BMW 3: Saving fuel

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 Reducing fuel consumption

General information The vehicle contains advanced technologies for the reduction of consumption and emission values. Fuel consumption depends on a number of different factors. Carrying out certain m

 ECO PRO

Concept ECO PRO supports a driving style that saves on consumption. For this purpose, the engine control and comfort features, for instance the climate control output, are adjusted. Steptronic transm

 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 consumpt

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 Driving Dynamics Control

Concept The Driving Dynamics Control influences the driving dynamics properties of the vehicle. The vehicle can be adjusted depending on the situation using various driving modes. General information The following systems are affected, for instance: Engine characteristics. Steptronic transmissio

 Valve gear

VANOS VANOS unit B46 engine and B46TU/B48TU engines VANOS B46 engine VANOS B46TU and B48TU engine Following the changeover from a two-part chain drive to a single-part chain drive, the camshaft sprockets on the VANOS now have 46 teeth instead of the previous 36 teeth. To compensate for the ad

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