BMW 3 Owners & Service Manuals

BMW 3: Engine Mechanical

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 Engine housing, Crankshaft drive

Engine housing Cylinder head The cylinder head is made of aluminum. Only slight modifications have been made to the B46TU head compared to the B46. Cylinder head Crankshaft drive Crankshaft Comparis

 Connecting rod - Crankshaft drive

Connecting rod Piston Area transferring the force Wrist pin Connecting rod bearing with shaped bore hole Connecting rod Connecting rod bearing (B46TU only) Small connecting rod eye (trapezoid

 IROX coating - Crankshaft drive

Detailed magnification of the IROX coating IROX-coated bearing shell Oil film IROX coating Bearing shell Binding resin Hard particle Solid lubricant The IROX coating is applied to a conventi

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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

 Shift point indicator

Concept The shift lights indicate the upshift point at which the best possible acceleration can be achieved. Functional requirement Shift lights are shown when the SPORT or SPORT PLUS driving program is activated. Switching on/off Steptronic Sport transmission: 1. Select SPORT or SPORT PLUS driving

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