BMW 3 Series (E90, E91, E92, E93) Service Manual: 2006-2010 - Excerpt

160-22 Fuel Tank and Fuel PumpHigh-pressure fuel pump, removing (turbo)

High-pressure fuel pump, removing (turbo)

– Remove intake manifold. See Intake manifold, removing and installing (turbo) in 130 Fuel Injection.

Remove electrical connectors (A) and lay harness aside.

Remove aluminum fastener (arrow) and discard. Detach fuel line (A). Seal fuel lines with BMW special tools 13 5 281 and 13 5 282. Remember to replace aluminum fastener (arrow) with new.

Loosen fuel line nut (A) and fuel line nut (B) in this order. Remove fuel line bracket fastener (C) and remove fuel line (D). Seal fuel line connections with matching plugs from BMW special tool kit 32 1 270.

WARNING —• Wear gloves and face shield when loosening fuel lines.

WARNING —• Wear gloves and face shield when loosening fuel lines.

Fuel Tank and Fuel Pump 160-23High-pressure fuel pump, installing (turbo)

160

Remove high-pressure fuel pump fasteners (arrows) and remove high-pressure fuel pump. Be prepared to catch any dripping oil with shop cloth.

High-pressure fuel pump, installing (turbo)

Replace high-pressure fuel pump O-ring (A) and clean mounting surfaces.

When installing, rotate pump (A) in direction of arrow until flush with mounting surface.

160-24 Fuel Tank and Fuel PumpHigh-pressure fuel pump, installing (turbo)

Install high-pressure fuel pump fasteners (arrows) finger tight.

Prior to installing high-pressure fuel lines, dispose of any copper sealing rings installed at the factory. They are no longer needed.

Use the following sequence when installing the fuel line.

• Coat fuel line connections with transmission fluid.

• Preinstall fuel line (A).

• Tighten nuts (B) (C) finger tight.

• Tighten nut (B) to proper torque.

• Tighten nut (C) to proper torque.

• Tighten fuel line bracket fastener (D).

Tightening torques

Fuel line to high-pressure fuel pump 30 Nm (22 ft-lb)

Fuel line to fuel rail 30 Nm (22 ft-lb)

Fuel line mount to cylinder head 13 Nm (9.5 ft-lb)

Fuel Tank and Fuel Pump 160-25High-pressure fuel pump, installing (turbo)

160

Before installing high-pressure fuel pump supply line, confirm it has the updated elastomer mounting clamp (arrow). If it has a soldered hold down clamp replace fuel supply line with updated part.

Use the following sequence when installing the fuel feed line.

• Coat fuel line connections with transmission fluid.

• Pre-install fuel line (A).

• Tighten nut (B) and mount fastener (arrow) finger tight. Remember to replace fuel line bracket aluminum fastener with new.

• Connect fuel line (C) to fuel supply line (A). Listen for audible click.

• Tighten nut (B) to proper torque.

• Tighten fuel line bracket fastener (arrow).

– Reassemble engine.

– Check fuel system for leaks.

– Check for fault codes and reset ECM memory.

Tightening torques

Fuel line to high-pressure fuel pump 30 Nm (22 ft-lb)

Fuel line bracket to engine• Stage 1• Stage 2

10 Nm (7.3 ft-lb)Additional 90° ± 15°

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BMW 3 Series (E90, E91, E92, E93)Service Manual: 2006-2010325i, 325xi, 328i, 328xi330i, 330xi, 335i, 335xi

Price: $134.95Bentley Stock No: B310Publication Date: 2011.june.01ISBN: 978-0-8376-1685-8Hardcover, 8 3/8 in. x 11 in.Case quantity: 11272 pages 2108 technical photos and illustrations

The BMW 3 Series (E90, E91, E92, E93) Service Manual: 2006-2010 contains in-depth maintenance, service and repair information for the BMW 3 Series from 2006 to 2010. The aim throughout has been simplicity and clarity, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-it-yourself BMW owner, this manual helps you understand, care for and repair your BMW.

Features

• Maintenance procedures from changing the ATF to replacing the cabin microfilter. This manual tells you what to do and how and when to do it.

• Step-by-step variable camshaft timing (VANOS) service for N51, N52 and N54 engines.

• Cylinder head cover gasket and crankshaft seal replacement.• Cooling system and radiator service.• Fuel injection and ignition system diagrams and explanations.• Information about advanced technical features such as

Valvetronic, xDrive, twin turbo boost and DSC (dynamic stability control).

• Suspension repair procedures.• Brakes, steering and ABS troubleshooting and repair.• Heating and air-conditioning repair, including A/C component

replacement.• Body and hood repairs and adjustments.• Electrical system service, with an easy-to-use illustrated

component locator section.• Comprehensive wiring schematics, including fuses and

grounds.• BMW OBD II diagnostic trouble codes, SAE-defined OBD II

P-codes, as well as basic scan tool operation.• BMW factory tolerances, wear limits, adjustments and

tightening torques.

Models covered• 325i, 330i, N52 engine (rear-wheel drive)• 328i, N52KP, N51 engine (rear-wheel drive)• 325xi, 330xi N52 engine (all-wheel drive or xDrive)• 328xi N52KP, N51 engine (all-wheel drive or xDrive)• 335i N54 engine (rear-wheel drive)• 335xi N54 engine (all-wheel drive or xDrive)

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Servicing the high pressure fuel system on turbo models, including replacing HPI fuel pump.160 Fuel Tank and Fuel Pump

Bentley technical editors removing Valvetronic motor on N51 engine.

bentley_b310_new.product.announcement.pdf

Learn how to reset condition based service (CBS) intervals using iDrive or stalk switch (cars without iDrive).020 Maintenance