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BMW 840CI CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT BMW REPAIR SHOPS DON'T WANT YOU TO KNOW
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A/C & HEATER SERVICE PROCEDURES FOR BMW 840CI AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported BMW 840CI cars and light trucks from 1990+
BMW -> Component Replacement & Adjustment -> RECEIVER/DRIER, REPLACE -> 325 -> 525 & 535
Vehicle: 1995 BMW 840CI 4.0 V8 GAS
325
- Evacuate A/C system.
- Remove windshield washer fluid reservoir.
- Remove trim panel covering receiver/drier.
- Disconnect refrigerant lines and plug openings.
- Disconnect wiring from switches.
- Remove 3 mounting tab bolts, and lift drier out of opening.
- Reverse procedure to install, using new seals when connecting refrigerant lines. Do not remove plugs from new receiver drier unit until ready connect refrigerant lines.
- Evacua...
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BRAKE SERVICE PROCEDURES FOR BMW 840CI AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported BMW 840CI cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service -> 740, 750, 840 & 850 & 1997 540 -> Hydraulic Power Flow Regulator, Replace -> M3, Z3, 318, 323, 325, 328, 525, 528 & 530 & 1995 540 -> Power Brake Booster, Replace
Vehicle: 1995 BMW 840CI 4.0 V8 GAS
Hydraulic Power Flow Regulator, Replace
- With engine off, discharge hydraulic reservoir by operating brake pedal approximately 20 times with same force required for full stop braking action.
- Disconnect electrical connectors on circulating pressure warning and hydraulic pressure switches.
- Remove hydraulic lines from power flow regulator.
- Remove power flow regulator mounting bolts.
- Remove power flow regulator.
- Reverse procedure to install. Ensure all connections and pipes are free from dirt.
Power Brake Booster, Replace
M3, Z3, 318, 323, 325, 328, 525, 528 & 530 & 1995 540
- Remove m...
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FUEL FILTER REPLACEMENT PROCEDURES FOR BMW 840CI AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported BMW 840CI cars and light trucks sold in the U.S. for 1980+.
BMW -> Fuel Shutoff Switch Location -> 1991-97 8 Series
Vehicle: 1994 BMW 840CI 4.0 V8 GAS
The inertia switch is located...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR BMW 840CI AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported BMW 840CI cars and light trucks from 1990+.
DRIVESHAFT, Replace
Vehicle: 1996 BMW 840CI 4.4 V8 GAS
- Raise and support vehicle.
- Remove complete exhaust system.
- Remove heat shield.
- Unfasten screws.
- Unscrew nuts.
- Push constant-velocity joint along disassembly grooves and of output flange.
- Unscrew center bearing. Caution: Do not let propeller shaft fall into joints. Joints and rubber sleeve on constant-velocity joint c...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR BMW 840CI AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported BMW 840CI cars and light trucks from 1990+.
Alternator, Replace -> Air Cooled -> Liquid Cooled
Vehicle: 1996 BMW 840CI 4.4 V8 GAS
Air Cooled
- Switch off ignition.
- Disconnect and cover battery ground lead.
- Remove alternator drive belt.
- Remove bolts on oil-filter housing.
- Place oil-filter housing to one side.
- Disconnect plug on alternator.
- Remove nut on alternator B+ terminal.
- Unfasten cable clip.
- Unclip cooling air guide.
- Remove alternator mounting bolts.
- Pull out alternator towards front.
- Pull alternator upwards to remove.
- Remove alternator from vehicle.
- Reverse procedure to install, noting the following:
- Torque alternator B+ terminal nut to 72 to 108 inch lbs.
- Torque alternator mounting bolts to 15 ft. lbs.
Liquid Cool...
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MAINTENANCE LAMP RESET PROCEDURES FOR BMW 840CI AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported BMW 840CI cars and light trucks sold in the U.S. from 1990+.
BMW -> Air Bag Warning Lamp ->
Vehicle: 1994 BMW 840CI 4.0 V8 GAS
If the Air Bag warning lamp lights and stays on, diagnosis and ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR BMW 840CI AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported BMW 840CI cars and light trucks from 1990+
Radiator, Replace
Vehicle: 1997 BMW 840CI 4.4 V8 GAS
- Remove upper air cleaner
- Raise and support vehicle.
- Using pulley holding tool No. 11 5 030, or equivalent, remove engine cooling fan. Fan nut has lefthand thread.
- Remove engine splash guard and heat shields.
- Drain coolant into suitable container.
- Remove mounting bolts and upper air duct.
- Disconnect coolant level sender electrical connector.
- Disconnect lower coolant, expansion a...
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SERPENTINE BELT SERVICE PROCEDURES FOR BMW 840CI AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported BMW 840CI cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1996 BMW 840CI 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...
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COMPONENT LOCATION DIAGRAMS FOR BMW 840CI AUTOMOBILES
Component location diagrams for most BMW 840CI cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR BMW 840CI AUTOMOBILES
OEM drawn wiring diagrams for most BMW 840CI cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR BMW 840CI AUTOMOBILES
OEM TSB listings for most BMW 840CI cars and light trucks sold in the U.S. from 1985+.
Document: Service Roundtable: July 2009 Show Vehicle: 1996 BMW 840CI 4.4 V8 GAS Auto Systems: |
Document: WIND BUFFETING IN VEHICLE INTERIOR Vehicle: 1994 BMW 840CI 4.0 V8 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR BMW 840CI AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most BMW 840CI 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 BMW 840CI 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 BMW 840CI 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 BMW 840CI 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
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