BMW 3: Engine identification
B46TU engine
Engine identification - transverse mounted shown
B48TU engine
Engine identification - transverse mounted shown
- Engine number
- Engine identification
The 7-digit engine identification is located on the crankcase in the area of the mounting for the crankshaft alignment pin. The first 6 digits of the engine identification code. Only the seventh digit is different. The seventh digit of the engine identification code is the test number of the type approval certification.
The 4th digit in the engine identification shown above is an A, this represents its a transverse mounted engine that will be installed in the F39 M35i. The G20 and G29 will have a B in the 4th position that represents the engine is longitudinal mounted.
The consecutive engine number is embossed above the engine identification. Using these two numbers the engine can be clearly identified by the manufacturer.
Technical data
The B46B20O1 and B46B20T1 engine is described:
Model overview
The table below provides an overview of the models in which the new B46TU and B48TU engine is used.
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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
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Head-up Display
Concept
This system projects important information into
the driver's field of vision, for instance the speed.
The driver can get information without averting
his or her eyes from the road.
General information
Follow the information on cleaning the Head-up
Display.
Overview
Switching on/off
Via iDr
System components
The front radar sensor (FRS) or the front radar sensor long range (FRSF) is
needed to reliably detect
the vehicles in front. Consequently, adaptive recuperation is only possible with
the optional equipment
Active Cruise Control with Stop&Go function (SA 5DF).
Adaptive recuperation can be
