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1991 BMW 750IL CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT BMW REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 BMW 750IL 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 750IL automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
BMW -> Automatic Temperature Control System Diagnosis & Testing -> DESCRIPTION
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
The electronically controlled automatic temperature control system uses a microcomputer to contro...
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BRAKE SERVICE PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
Hydraulic Brakes -> BRAKE SYSTEM BLEEDING
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
The following procedure has been revised by BMW Technical Service Bulletin No. 34 06 90 (3134).
- Connect suitable pressure bleeder to brake fluid reservoir. Maximum charging pressure is 43.5 psi.
- Attach bleeder hose and container to right rear wheel. Bleed until no bubbles appear.
- Repeat step 2 for left rear, right front and left front wheels.
- Support rear suspension at wheel carriers and lower car so rear suspension compresses to its normal loaded position (to prevent damage to output shaft jo...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 BMW 750IL 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: 1991 BMW 750IL 5.0 V12 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...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assembly -> Disassembly
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
Disassembly
- Raise and support vehicle.
- Remove propeller shaft assembly.
- Remove hose straps.
- Lift out circlip.
- Pull off constant velocity joint complete with dust cover.
- Press knurled head bolts and washers out of constant velocity joint.
- Press off dust cover.
Assembly
- Pack new constant velocity joint with 60 grams of grease (HWB). Do not pack the inner race with cage since the balls would tall ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
Starter, Replace
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
- Disconnect battery ground cable.
- Remove cap, then disconnect starter motor wiring at fire wall.
- Remove washer fluid tank, to gain access to starter motor attaching bolts.
- Remove starter motor upper attaching bolt.
- Disconnect battery ground lead at right rear seat base frame.
- Remove carbon canister vacuum ho...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
BMW -> Anti-Lock Brake System Warning Lamp ->
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
The Anti-Lock warning lamp is used to warn of a system fault. It will be lit during engine start-up, but should go out when the self-diagnostic system determines that the system is functioning properly. If the ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
Radiator, Replace
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
- Drain coolant into a suitable container.
- Remove fan cowl, note engine variant.
- On models with air conditioning, disconnect plug connection on temperature switch.
- Remove upper coolant hose.
- Release left and right screws on radiator.
- Remove both brackets.
- ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 BMW 750IL AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 BMW 750IL 5.0 V12 GAS
If drive belt is to be subsequently reused: Mark direction of travel and reinstall drive belt in same direction of travel.
- Hold pulley with Special Tool 11 5 0...
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COMPONENT LOCATION DIAGRAMS FOR 1991 BMW 750IL AUTOMOBILES
Component location diagrams for most 1991 BMW 750IL cars and light trucks sold in the U.S. from 1990+.
 RH Side Of Driver's Footwell Diagram for 1991 BMW 750IL 5.0 V12 GASComponents on diagram: |
 E-Box & Grounds Diagram for 1991 BMW 750IL 5.0 V12 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 BMW 750IL AUTOMOBILES
OEM drawn wiring diagrams for most 1991 BMW 750IL cars and light trucks sold in the U.S.
 1991 BMW 750IL 5.0 V12 GAS Wiring DiagramComponents on diagram: |
 1991 BMW 750IL 5.0 V12 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 BMW 750IL AUTOMOBILES
OEM TSB listings for most 1991 BMW 750IL cars and light trucks sold in the U.S. from 1985+.
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Document: Tools and Equipment Vehicle: 1991 BMW 750IL 5.0 V12 GAS Auto Systems: |
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Document: Turbocharger Installation Tool Vehicle: 1991 BMW 750IL 5.0 V12 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 BMW 750IL AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 BMW 750IL 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 1991 BMW 750IL 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 1991 BMW 750IL 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 1991 BMW 750IL 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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