Bmw X5 4 6 Workshop Manual
Initial Print Date: 02/2000Revision Date: 6/2000 Subject Page M54 Engine Introduction. 2 Mechanical changes.
4 Performance Charts. 6 Review Questions. 7 Siemen’s MS 43.0 System. Introduction.
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- Results 1 - 48 of 349 - Official Workshop Manual Service Repair BMW Series X5 E70 2006. GENUINE BMW 1 2 3 4 5 6 7 SERIES X1 X5 X6 X3 HANDBOOK.
- BMW X5 2003 E53 M54 Engine Workshop Manual view, print and download online for free. 48 Pages, PDF. PDF Download. Initial Print Date: 02/2000Revision Date: 6/2000 Subject Page M54 Engine Introduction. Page 4 of 48.
8. I - P - O.
M54 ENGINE Models: E53 X5, SOP: 3 liter - 4/00 Objectives of the Module: Purpose of the System: The M54 engine was developed to meet the needs for ULEV compliancy for emission con- trol. The increase in displacement allows the engine to fit the X5 All Roads vehicle while still meeting the demands for power and performance. INTRODUCTION The M54 - 6 cylinder engine is being introduced with the 2001 Model Year E53 - X5. The displacement of the new engine for the X5 is 3 liters and the engine will replace the 2.8 liter engine in the E46/Z3 series in 6/2000 and E39 series vehicles in 9/2000. Design objectives for the M54 engine were to provide:.
Lower Emissions. Maintain Fuel Economy. Maintain Power and Performance levels 2 M54engMS43/ST036/6/2000 At the end of this section of the handout, you will be able to:. Identify the changes to the M54 engines over the M52 TU engine. List the design objectives for the M54 engine. M54 ENGINE Mechanical Changes In addition to the increased displacement of the M54B30 engine, several mechanical changes were incorporated into the engine for reduced emissions and increased fuel econ- omy. These changes include:.
NEW PISTONS - The piston has a shorter skirt compared to the M52 TU and continues with the graphite coating for friction and emission reducing measures. The piston rings have been modified to reduce friction. CRANKSHAFT - The crankshaft for the 3 liter M54 is adopted from the S52B32 - M3 engine. CAMSHAFT - The camshaft for the 3 liter M54 is modified with more lift (9.7 mm) and new valve springs to accommodate the increased lift. INTAKE MANIFOLD - The intake manifold is modified with shorter ram tubes (20mm shorter on 3 liter. The diameter of the tubes is increased slightly.
INJECTION VALVES - The diameter of the injection pintle has increased slightly for the increased displacement of the 3 liter engine. 4 M54engMS43/ST036/6/2000 ART-0198U29 ART-INJECTOR. M54 ENGINE MECHANICAL CHANGES NON RETURN FUEL RAIL SYSTEM The M54 engine with MS 43.0 control uses the non return fuel rail system introduced on the M62 TU engine. The system meets running loss compliance without the use of the 3/2- way solenoid valve currently used on the M52 TU engine. The regulated fuel supply is controlled by the fuel pressure regulator integrated in the fuel filter. The fuel return line is also located on the filter. The M54 engine uses an Electronic Controlled Throttle Valve (EDK) for intake air control.
The idle control valve and turbulence function of the intake manifold carries over from the M52 TU engine. 5 M54engMS43/ST036/6/20000 ART-FUELRAIL.
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7 M54engMS43/ST036/6/20000 REVIEW QUESTIONS 1. What is the major reason for the development of the M54 engine? 2. What are the major mechanical changes that were integrated into the3 liter M54 engine?. 8 M54engMS43/ST036/6/2000 SIEMENS ENGINE MANAGEMENT SYSTEM Models: E53 X5 SOP: 3 liter - 4/00 Objectives of the Module: At the end of this section of the handout you will be able to:. Identify the changes that have occurred to the MS 43 system compared to the MS 42. Describe the operation of the new inputs.
Social science guide for class 9. Describe the operation of the new outputs. Discuss which new components/subsystems relate directly to ULEV compliancy This new generation Siemens system is designated as MS 43.0. Siemens MS 43.0 is a newly developed engine management system to meet the needs of Ultra Low Emission Vehicle (ULEV) compliancy and continuing with present systems is also OBD II compliant. This system also includes control of the Motor-driven Throttle Valve (EDK). The ECM uses a pc-board dual-processor control unit in the SKE housing configuration.
The MS 43.0 ECM is flash programmable as seen with previous systems. ECM hardware includes: Modular plug connectors featuring 5 connectors in the SKE housing with 134 pins. Connector 1 = Supply voltages and grounds. Connector 2 = Peripheral signals (oxygen sensors, CAN, etc.). Connector 3 = Engine signals.
Connector 4 = Vehicle signals. Connector 5 = Ignition signals Special features:. Flash EPROM which is adaptable to several M52 LEV engines and has the capability to be programmed up to 13 times. Once a control unit is installed and coded to a vehicle it cannot be swapped with anoth- er vehicle for diagnosing or replacement (because of EWS 3.3).
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10 M54engMS43/ST036/6/2000 MS 43 NEW FUNCTIONS ELECTRONIC THROTTLE SYSTEM - EML The M54 engine with MS 43 engine control uses an electronic throttle control system adopted from the ME 7.2 system on the M62 engine. The system incorporates an electric throttle valve (EDK) and pedal position sensor (PWG) for engine power control.
The MS 43 control module monitors the PWG input and activates the EDK motor based on the programmed maps for throttle control. The MS 43 module self checks the activation of the EDK via feedback potentiometers motor on the EDK motor. Additional functions of the EML system include:. Cruise control function. DSC throttle interventions. Maximum engine and road speed control ART-SCANDIAGRAM.
2003 Bmw X5 4.6
BENTLEY PUBLISHERS BMW X5 E53 2000 - 2005 3.0i / 4.4i / 4.6is / 4.8is SERVICE AND REPAIR MANUAL NEW The BMW X5 (E53) repair manual: 2000-2006 contains in-depth maintenance, service and repair information for BMW X5 models from 2000 to 2006. 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.