BMW 3 Owners & Service Manuals

BMW 3: Engine Mechanical

BMW 3 Series G20 (2018-2023) Training manual / B46TU-B48TU Engines / 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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 Voltage supply

The 12 V vehicle electrical system of the G20 PHEV is essentially the same as the electrical system of the G20. The main difference lies in the fact that the power supply is no longer by the alternator, but by the high-voltage electrical system. The high voltage of the high-voltage battery u

 Speed Limit Info

Speed Limit Info Concept Speed Limit Info shows the currently valid speed limit in the instrument cluster and, if necessary, the Head-up Display. General information The camera in the area of the interior mirror detects traffic signs at the edge of the road as well as variable overhead sign posts.

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