2012 2013 2014 2015 BMW 320i 328i 328d 335i xDrive F30 F31 F34 Official Factory Service Manual Gas & Diesel

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 3 Series.

Features:

• Maintenance procedures from changing the cabin microfilter to replacing and registering a new battery. This manual tells you what to do and how and when to do it.
• Front-to-rear fluid and lubricant service, including xDrive transfer case fluid and ATF.
• Cylinder head cover gasket and crankshaft seal replacement.
• Cooling system, thermostat and radiator service.
• Gasoline fuel and ignition system diagrams and explanations for turbo-valvetronic-direct injection (TVDI) engines.
• Diesel fuel injection system diagrams and explanations for turbo-direct injection (TDI) engine management systems.
• Service and repair information on BMW EfficientDynamics technology, such as Valvetronic, xDrive, TwinPower turbo, and DSC (dynamic stability control).
• Twin scroll (gasoline) and variable vane (diesel) turbocharger removal and installation.
• Step-by-step variable camshaft timing (VANOS) service.
• Suspension repairs, including wheel bearing replacement.
• 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.

Engines (Gasoline):

• N20 engine: 320i, 328i, including xDrive
• N26 (SULEV) engine: 328i including xDrive
• N55 engine: 335i, including xDrive

Engines (Diesel):

• N47 engine: 328d, including xDrive

Manual transmissions (remove, install, external service):

• GS6-17BG (4-cylinder models)
• GS6-45BZ (6-cylinder models, RWD)
• GS6X-45BZ (6-cylinder models, with xDrive)

Automatic transmissions (remove, install, external service):

• ZF GA8HP45Z