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1991 BMW 318IS 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!Select Section
- 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
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW 318IS AUTOMOBILES
Imported Cars & Light Trucks & Vans -> 1991-92 -> Flushing System
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
Several factors, particularly compressor failure can cause contamination of the A/C system. If the A/C system is suspected of being contaminated, or if any system components have been stored in open air for extended periods, the entire system should be flushed. If contaminati...
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BRAKE SERVICE PROCEDURES FOR 1991 BMW 318IS AUTOMOBILES
Disc Brakes -> REAR BRAKE PADS REPLACEMENT
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
- Remove wheels and disconnect electrical connector from wear sensor, if equipped.
- Pry caps off caliper guide bolts and remove guide bolts.
- Pry outer pad retaining clamp...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 BMW 318IS 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 318IS 1.8 L4 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 318IS AUTOMOBILES
DRIVESHAFT, Replace -> With constant velocity joint -> With slide
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
With slide
- Raise and support vehicle.
- Remove complete exhaust system.
- Remove heat shield.
- Unscrew holders for exhaust suspension.
- Remove clamp.
- On models with joint disk, unscrew joint disk on transmission.
- On models with universal joint, unscrew universal joint on transmission.
- Release threaded bushing with special tool 26 1 040 or equivalent by a few turns.
- Caution:When removing propeller shaft, mark universal joint to drive flange of rear axle. This will eliminate complaints of droning.
- Unscrew universal joint on final drive.
- On all models, unscrew center bearing.
- Kink propeller sha...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 BMW 318IS AUTOMOBILES
Starter, Replace
Vehicle: 1991 BMW 318IS 1.8 L4 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 318IS AUTOMOBILES
BMW -> Automatic Stability Control (ASC, ASC+) & Dynamic Stability Control (DSC) Warning Lamp ->
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
The 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. The warning lamp will also flash when the syst...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 BMW 318IS AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
Lower
- Drain coolant into a suitable container.
- Reposition hose clamp and remove hose from radiator.
- Reposition hose clamp and remove hose from engine.
- Remove hose from vehicle.
- Reverse procedure to ins...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 BMW 318IS AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 BMW 318IS 1.8 L4 GAS
If a belt has been contaminated with antifreeze or oil it should be replaced.
- 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. Turn nut clockwise to remove.
- Loosen tensioner lock bolts, the...
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COMPONENT LOCATION DIAGRAMS FOR 1991 BMW 318IS AUTOMOBILES
Component location diagrams for most 1991 BMW 318IS cars and light trucks sold in the U.S. from 1990+.
LH Side Of Soft Top Storage Compartment Diagram for 1991 BMW 318IS 1.8 L4 GAS Components on diagram: |
Behind LH Side Of I/P Diagram for 1991 BMW 318IS 1.8 L4 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1991 BMW 318IS AUTOMOBILES
OEM drawn wiring diagrams for most 1991 BMW 318IS cars and light trucks sold in the U.S.
1991 BMW 318IS 1.8 L4 GAS Wiring Diagram Components on diagram: |
1991 BMW 318IS 1.8 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 BMW 318IS AUTOMOBILES
OEM TSB listings for most 1991 BMW 318IS cars and light trucks sold in the U.S. from 1985+.
Document: Tools and Equipment Vehicle: 1991 BMW 318IS 1.8 L4 GAS Auto Systems: |
Document: Tools and Equipment Vehicle: 1991 BMW 318IS 1.8 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 BMW 318IS AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 BMW 318IS 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 318IS 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 318IS 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 318IS 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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