All BMW VANOS systems are operated through electric/hydraulic/mechanical control. Electric Control: The engine control module is responsible for activating a VANOS solenoid valve based on DME program mapping. The activation parameters are influenced by the following input signals:
• Engine speed
• Load (intake air mass)
• Engine temperature
• Camshaft position
• Oil temperature (MS 42.0 only)
Depending on the specific VANOS system, the solenoid valve is one of two types:
• Basic black/white (on/off) solenoid valve. Found on M50 TU and M52 engines.
• Variable position solenoid valve. Found on the M52 TU and M62 TU engines.
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Repair Section Engine, Engine Electrical Fuel Injection Fuel Delivery Cooling System Clutch Manual Transmission Automatic Tranmission Gear Shift Front Axle Steering Rear Axle Brakes Electronics General Instruments Heating & Air Conditioning Ordering Information VALVE TIMING ADJUSTMENT PLATE Adjusting plate for setting valve timing on engine with double VANOS. CAMSHAFT LOCKING FIXTURE KIT This camshaft kit allows disassembly and assembly of 4, 6, 8 and 12 cylinder BMW engines produced from 1991 to the present.
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This BMW Sport Series Manual content:
Introduction BMW 1 Series 3-door Equipment Engine Catalytic converter Common-rail injection system Diesel Particulate Filter (DPF) Digital Diesel Electronics (DDE) Digital Motor Electronics MS S65 (DME) Double-VANOS Four-cylinder in-line engine with high-precision direct injection with four-valve technology Oil level sensor with dipstick Audio and communications Auxiliary input point for auxiliary playing devices Read the rest of this entry »

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The BMW 3 Series (E46) Service Manual: 1999-2005 is a comprehensive source of service information and specifications for BMW 3 Series from 1999 to 2005. The aim throughout this manual has been simplicity, clarity and completeness, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-ityourself
BMW owner, this manual will help you understand, care for and repair your E46 3 Series.
This BMW manual supersedes our previous 1999-2001 E46 manual (Bentley Stock No. B301, ISBN 0-8376-0302-X).
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