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1991 BMW 735IL CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT BMW REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 BMW 735IL 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 735IL automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
BMW -> Component Replacement & Adjustment -> CONDENSER, REPLACE -> 325 -> 525 & 535
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
325
- On models with SRS, disable air bag system as described under .
- On all models, remove engine fan.
- Loosen radiator mounts and push radiator towards engine.
- Using suitable valve core remover, discharge A/C system pressure.
- Remove right grille section for access.
- Disconnect refrigerant lines from condenser and plug openings immediately.
- Disconnect condenser fan wiring.
- Remove mounting bolts, then remove condenser from above.
- Remove fan from condenser.
- Inspect condenser cooling fins, and if necessary, straighten w...
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BRAKE SERVICE PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
Hydraulic Brakes -> BRAKE FORCE REGULATOR, REPLACE -> 318 & 325
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
318 & 325
- Remove brake fluid in reservoir with a syringe.
- Disconnect brak...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
BMW -> Fuel Shutoff Switch Location -> 1989-94 7 Series
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
The inertia switch is located under the r...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assembly -> Disassembly
Vehicle: 1991 BMW 735IL 3.5 L6 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 735IL AUTOMOBILES
Starter, Replace
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
- Disconnect battery ground cable, then remove air cleaner and air flow sensor.
- Remove oil dipstick tube.
- Remove starter solenoid cover.
- Disconnect electri...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
BMW -> Service Interval Indicator -> 7 Series -> Interval Indicator -> Less Underhood Diagnostic Connector -> Oil Service -> With Underhood Diagnostic Connector
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
Less Underhood Diagnostic Connector
- Press and hold the reset button located at the top lefthand side of the instrument cluster for 10 seconds.
- A four line menu should appear on the speedometer display. First line is the Back function followed by three service and maintenance items.
- A "!" symbol indicates the service or maintenance item can be reset. An "0" symbol indicates the item cannot be reset. The first 20% of the service or maintenance interval is protected against accidental or premature reset.
- Use the Reset button or lower axial FAS button on the turn signal high beam switch to scr...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 BMW 735IL AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1991 BMW 735IL 3.5 L6 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp and remove hose from heater core.
- Reposition hose clamp and remove hose from engine.
- Remove hose from vehicle.
- Reverse procedure t...
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COMPONENT LOCATION DIAGRAMS FOR 1991 BMW 735IL AUTOMOBILES
Component location diagrams for most 1991 BMW 735IL cars and light trucks sold in the U.S. from 1990+.
 Rear Power Distribution Box & Relays Diagram for 1991 BMW 735IL 3.5 L6 GASComponents on diagram: |
 Instrument Harness Splices Diagram for 1991 BMW 735IL 3.5 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 BMW 735IL AUTOMOBILES
OEM drawn wiring diagrams for most 1991 BMW 735IL cars and light trucks sold in the U.S.
 1991 BMW 735IL 3.5 L6 GAS Wiring DiagramComponents on diagram: |
 1991 BMW 735IL 3.5 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 BMW 735IL AUTOMOBILES
OEM TSB listings for most 1991 BMW 735IL cars and light trucks sold in the U.S. from 1985+.
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Document: Tools and Equipment Vehicle: 1991 BMW 735IL 3.5 L6 GAS Auto Systems: |
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Document: Turbocharger Installation Tool Vehicle: 1991 BMW 735IL 3.5 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 BMW 735IL AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 BMW 735IL 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 735IL 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 735IL 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 735IL 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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