BMW 3 Owners & Service Manuals

BMW 3: Cooling System

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 Split cooling

Split cooling is a new development for the B46TU engine. This cooling concept is a modified version of which is already used in the N63TU2. The Split Cooling function uses the electrical Split Cooli

 Heat management module

The heat management module replaces the characteristic map thermostat. Heat management module Electrical Split Cooling Valve (SCV) Coolant output towards the coolant pump Electrical actuator Rot

 Operating strategy

The following graphic shows the positions of the rotary valve as the coolant temperature increases: Switching diagram heat management module 0% - Rotary valve closed 100% - Rotary valve open Cold

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 Overview

Buttons on the steering wheel Steering and traffic jam assistant on/ off. Switch function on. Radar sensors The radar sensors are located in the bumpers. Front center bumper. Front side bumper. Rear bumper. Always keep the bumper in the area of the radar sensors clean and unobstructed. Camera

 Power electronics for activation of the electrical machine

The power electronics for the activation of the electrical machine are mainly made up of the bidirectional DC/AC converter. It is a pulse converter with a 2-pin DC voltage connection and a 3-phase AC voltage connection. This DC/AC converter can work as an inverter and conduct electrical energy fr

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