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BMW 3- & 5-Series Service and Repair Manual
Routine maintenance and servicing
In-car engine repair procedures
General engine overhaul procedures
Cooling, heating and air conditioning systems
Fuel and exhaust systems
Engine electrical systems
Engine management and emission control systems
Braking system
Suspension and steering systems
Bodywork and fittings
Body electrical systems
Wiring diagrams
http://www.bmw3-5.org.ua/