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1998 BMW 740I CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT BMW REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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    Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1998 BMW 740I car and truck repair procedures including BMW engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your BMW 740I automobile. Try the Automotix DIY solution today!
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    Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for BMW mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1998 BMW 740I vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

    A/C & HEATER SERVICE PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    BMW -> Automatic Temperature Control System Diagnosis & Testing -> A/C System Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests: 528i & 540i -> Diagnostic Tests: M Coupe, M Roadster, M3, Z3, 318i, 318ti, 323i, 323iC, 323is, 328i, 328iC & 328is -> Diagnostic Trouble Code 01: Right Temperature Control Wheel -> Diagnostic Trouble Code 04: Right Heater Sensor -> Diagnostic Trouble Code 07: Evaporator Sensor -> Diagnostic Trouble Code 10: Outside Sensor -> Diagnostic Trouble Code 13-Interior Sensor -> Diagnostic Trouble Code 13: Interior Sensor -> Diagnostic Trouble Code 16-Interior Sensor Blower -> Diagnostic Trouble Code 16: Interior Sensor Blower -> Diagnostic Trouble Code 25: Left Temperature Control Wheel -> Diagnostic Trouble Code 28: Left Heater Sensor -> Diagnostic Trouble Code 31: Air Flow Control Wheel -> Diagnostic Trouble Code 34: Mixing Air Control Wheel -> Diagnostic Trouble Code 38: Auxiliary Water Pump Relay -> Diagnostic Trouble Code 40: Left Water Valve -> Diagnostic Trouble Code 44: A/C Compressor Signal Or Auxiliary Fan Relay -> Diagnostic Trouble Code 44: A/C Relay/Auxiliary Fan Relay -> Diagnostic Trouble Code 46: Right Water Valve -> Diagnostic Trouble Code 47: A/C Signal To DME Control Unit -> Diagnostic Trouble Code 48: Rear Window Defroster -> Diagnostic Trouble Code 48: Rear Window Defroster Relay -> Diagnostic Trouble Code 52: Fresh Air Flap Motor -> Diagnostic Trouble Code 55: Air Recirculation Flap Motor -> Diagnostic Trouble Code 56: AUC Signal -> Diagnostic Trouble Code 61: Mixing Air Flap Motor -> Diagnostic Trouble Code 92: Terminal 50 On Longer Than 3 Minutes -> Diagnostic Trouble Code 94: Dependent Heating/Independent Ventilation -> Diagnostic Trouble Code 94: Independent Heating/Independent Ventilation -> Diagnostic Trouble Code Interpretation
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Accessing Diagnostic Trouble Codes

    The automatic climate control unit is capable of detecting system malfunctions and storing a related diagnostic trouble code. These diagnostic trouble codes may be read from control unit memory using the BMW service tester, or equivalent. Follow manufacturer's instructions to display diagnostic trouble codes.

    The display "current defect" indicates that the malfunction currently exists. If a "current defect" applies to the temperature sensors or control wheels, a substitute value provided by the control unit is used. T...

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    BRAKE SERVICE PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Anti-lock Brakes -> Description -> ABS Less Stability & Traction Control -> ABS w/Stability & Traction Control
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    ABS Less Stability & Traction Control

    The Anti-Lock Brake System (ABS) consists of a control unit, hydraulic unit, speed sensors and wiring harness, Fig. . Each speed sensor has a gear wheel which runs past the permanently magnetized edge of the speed sensor installed in the wheel hub. The rotary motion of the wheels is recorded by inductive sensors and an electric signal is sent to the electronic control unit.

    The electronic control unit is located in a compartment on the right side of the engine compartment. This control unit inputs acceleration, deceleration and slip factors from ...

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    FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    BMW -> Fuel Filter Replacement -> Except X3 & Z4 -> Fuel System Pressure Relief -> Models w/Fitting Or Union Bolt Connection -> Models w/Fuel Hose Connection -> Removal & Installation
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while it relearns its adaptive strategy.

    Fuel System Pressure Relief

    • Obtain the vehicle owner's radio theft protection code.
    • Remove the fuel pump relay(s).
    • Start the engine and allow it to stall.
    • Crank engine for 10 seconds to ensure the fuel pressure has been...

    CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    CV AXLE SHAFT, Replace -> Rear
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Rear

    • Raise and support vehicle, then remove rear tire and wheel assembly.
    • Remove exhaust system.
    • Remove rear axle.
    • Remove axle nut.
    • Press halfshaft off hub using a suitable tool. Do not allow halfshaft to fall.
    • On models equipped with height control, remove cont...

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    TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Component Replacement -> Installation -> Removal -> Tire Pressure Sensor -> TPMS Antenna -> TPMS Control Module
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Tire Pressure Sensor

    Removal
    • Dismount tire using suitable tire machine ensuring not to damage tire pressure sensor.
    • Remove the Torx screw, then the tire pressure sensor.
    • Release valve stem union nut using removal tool No. 00 2 190, or equivalent Fig. .
    • Remove washer from wheel.
    Installation
    • Install new Torx screw on tire pressure sensor, then twist new valve stem by hand approximately three turns. Do not tighten Torx screw, sensor and valve stem must be loosely joined together.
    • Install the tire pressure sensor on wheel. Ensure the radial bore for gripping on the circumference of t...

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    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Alternator, Replace -> Air Cooled -> Liquid Cooled
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Air Cooled

    • Remove drive belt.
    • Remove mounting bolts and place oil filter housing aside.
    • Disconnect alternator electrical connectors.
    • Remove mounting nut and disconnect battery positive lead.
    • Disconnect cable clip and cooling air guide.
    • Remove mounting bolts and alternator.
    • Reverse procedure to install.

    Liquid Cooled

    • Lock fan coupling pulley in place using sui...

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    CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Cabin Air Filter Service -> BMW -> 1993-2001 7 Series
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Service interval is determined by the service indicator.

    • Remove cabin air filter cover retaining screw, then open the cover.
    • Depress the cabin air filter duct lock, then lift the cover upward.
    • Release the cabin ai...

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    MAINTENANCE LAMP RESET PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    BMW -> Air Bag Warning Lamp ->
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    If the Air Bag warning lamp lights and stays on, diagnosis and ...

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    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Radiator, Replace
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    • Raise and support vehicle, then drain coolant into suitable container.
    • Remove air intake filter housing.
    • Disconnect level sensor connector.
    • Disconnect clamp and remove expansion tank hose.
    • Open expansion tank cap and remove vent plug.
    • Disconnect clips and remove expansion tank.
    • Disconnect AUC sensor, as required.
    • Lock belt pulley in position using holding tool No. 11 5 05...

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    SERPENTINE BELT SERVICE PROCEDURES FOR 1998 BMW 740I AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    • Remove fan cowl by lifting out expansion rivets on both sides.
    • Secure fan pulley with suitable securing tool, or equivalent, then remove fan. Fan has lefthand handed threads.
    • Loosen tensioner lock bolts, then turn tensioner with suitable wrench to receive tens...

    CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1998 BMW 740I AUTOMOBILES

    Component location diagrams for most 1998 BMW 740I cars and light trucks sold in the U.S. from 1990+.

    Engine Control Module Diagram for 1998 BMW 740I  4.4 V8 GASEngine Control Module Diagram for 1998 BMW 740I 4.4 V8 GAS

    Components on diagram:
  • Engine Control Module
  • Connector A-60001
  • Air Injection Pump Diagram for 1998 BMW 740I  4.4 V8 GASAir Injection Pump Diagram for 1998 BMW 740I 4.4 V8 GAS

    Components on diagram:
  • Connector X-1124
  • Connector M-63
  • CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1998 BMW 740I AUTOMOBILES

    OEM drawn wiring diagrams for most 1998 BMW 740I cars and light trucks sold in the U.S.

    1998 BMW 740I  4.4 V8 GAS Wiring Diagram1998 BMW 740I 4.4 V8 GAS Wiring Diagram

    Components on diagram:
  • LH Rear Seat Lumber Support Pressure Switch
  • LH Rear Seat Lumber Support Valve Block
  • Rear Compartment Lumber Support Motor
  • 1998 BMW 740I  4.4 V8 GAS Wiring Diagram1998 BMW 740I 4.4 V8 GAS Wiring Diagram

    Components on diagram:
  • Trunk Lid Switch
  • Trunk Lid Lamp
  • Trunk Compartment Lamp
  • General Module
  • CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1998 BMW 740I AUTOMOBILES

    OEM TSB listings for most 1998 BMW 740I cars and light trucks sold in the U.S. from 1985+.

    Document: Tools and Equipment
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Auto Systems:
  • Tools, Equipment
  • Labor Times, Manuals, Warranty, Aids
  • Document: Tools and Equipment
    Vehicle: 1998 BMW 740I 4.4 V8 GAS

    Auto Systems:
  • Tools, Equipment
  • CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1998 BMW 740I AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 BMW 740I cars and light trucks sold in the U.S. and Canada from 1970+.

    • Brake caliper mounting bolt torque
    • Brake drum runout, machining, & discard specs
    • Minimum brake lining thickness.
    • Brake rotor runout, parallelism, machining, discard, & finish specs

    A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1998 BMW 740I cars and light trucks sold in the U.S. and Canada from 1980+.

    • Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

    COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

    PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

    QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1998 BMW 740I cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

    • Automatic transmission/transaxles capacities, lubricant recommendations
    • Differential/final drive capacities, lube recommendations, grades, & viscosities
    • Final drive fill & drain plug torques
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
    • Severe service maintenance & interval recommendations
    • Tire sizes, wheel nut/bolt torque, pressures & rim sizes
    • Transfer case capacities, lube recommendations, grades, & viscosities

    TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1998 BMW 740I cars and light trucks sold in the U.S. and Canada from 1980+

    • Airflow sensor electrical specifications
    • Tensioning specifications for systems with automatic tensioners
    • Barometric pressure sensor specs
    • Battery group number and cranking performance
    • Crankshaft & camshaft position sensor resistance
    • Engine compression pressures
    • Coolant temperature sensor specs
    • Computer advance.
    • Diesel fuel temperature sensor resistance.
    • Distributor advance specifications
    • Ignition pickup coil resistance
    • Exhaust gas recirculation temperature sensor resistance
    • Engine fastener torque values
    • Firing order diagrams
    • Fuel system pressures
    • Generator (alternator) specs
    • Intake air temperature sensor specs
    • Ignition coil specifications
    • Fuel injector resistance
    • Engine idle speeds
    • Knock sensor resistance
    • Manifold absolute pressure sensor specs
    • Mixture control solenoid resistance
    • Voltage regulator specs
    • Spark plug applications & gaps
    • Starter motor electrical specs.
    • Tensioning specifications for systems without automatic tensioners
    • Throttle body temperature sensor resistance
    • Ignition timing in degrees at rpm
    • Transmission oil temperature sensor resistance
    • Throttle position sensor specs
    • Vacuum sensor valve specs

    CLICK HERE TO GET FULL ACCESS TO 1998 BMW 740I SPECIFICATIONS DATA!

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    Source: Auto Body Parts Store

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    Source: Auto Body Parts Store

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    Source: Wheels / Rims, Mirrors & Lights Store

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