BMW 3 Owners & Service Manuals

BMW 3: Fuel System

The fuel system is made up of the fuel supply and fuel preparation systems. The fuel supply includes the fuel tank with all mounted parts and the fuel lines up to the engine compartment.

The fuel preparation system consists of the fuel filter lines in the engine compartment and all the fuel system parts on the engine.

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 Fuel preparation

The fuel preparation has again been adapted to meet the emission legislation requirements. The high pressure pump and the injectors have been revised and designed for an fuel injection pressure of 3

 Fuel high-pressure pump

The single-piston high pressure pump by Bosch, well-known from the B46 engine, is used. The high pressure pump HDP6 is driven by a triple cam which is attached to the exhaust camshaft. To be able to

 Direct rail

Injector mounting Mounting bolts Plastic sleeve (not required to be reinstalled after taken apart for service) Holding clamp with bayonet fitting Rail Solenoid valve injector Casting lug Th

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 USB connection

General information Mobile devices with a USB port are connected to the USB interface. Mobile phones. Audio devices such as MP3 players. USB storage devices. Common file systems are supported. FAT32 and exFAT are the recommended formats. A connected USB storage device will be supplied with ch

 Indicator/warning lights

Concept Indicator/warning lights in the instrument cluster display the status of some functions in the vehicle and indicate when a malfunction is present in the monitored systems. General information The indicator/warning lights can light up in a variety of combinations and colors. Several of the l

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