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1991 BMW M3 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
- 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
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Imported Cars & Light Trucks & Vans -> 1991-92 -> Leak Tests -> Electronic Leak Detectors -> Flame-Type (Halide) Leak Detectors -> Fluid Leak Detectors
Vehicle: 1991 BMW M3 2.3 L4 GAS
Testing the refrigerant system for leaks is one of the most important phases of troubleshooting. One or more of the methods outlined will prove useful in detecting leaks or checking connections if service work is performed. Before beginning any leak test, attach a manifold gauge set and note pressure. If little or no pressure is indicated, a partial charge must be installed. Check all connections, compressor head gasket, oil filler plug and compressor shaft seal for leaks.
Electronic Leak Detectors
There are a number of electronic leak detectors, Fig. available to per...
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BRAKE SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Hydraulic Brakes -> BRAKE SYSTEM BLEEDING
Vehicle: 1991 BMW M3 2.3 L4 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 M3 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 M3 2.3 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 M3 AUTOMOBILES
DRIVESHAFT, Replace -> With constant velocity joint -> With slide
Vehicle: 1991 BMW M3 2.3 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 pro...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Alternator, Replace
Vehicle: 1991 BMW M3 2.3 L4 GAS
- Disconnect battery ground lead.
- Disconnect B+ and D+ leads on alternator terminals.
- Remove ground lead.
- Remove air cleaner and air flow sensor.
- Remove bracket...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
BMW -> Service Interval Indicator -> 3 Series & M3 -> Interval Indicator -> Less Underhood Diagnostic Connector -> Oil Service -> With Underhood Diagnostic Connector
Vehicle: 1991 BMW M3 2.3 L4 GAS
Less Underhood Diagnostic Connector
On these models the SII reset tool cannot be used. Resetting is possible using the instrument cluster trip odometer reset button. Proceed as follows:
- Turn ignition Off.
- Press and hold trip odometer reset button, then turn ignition to "1" (Accessory).
- Keep odometer reset button depressed for approximately five more seconds until any of following words appear in display: "Oil Service" or "Inspection" with "Reset" or "Re."
- On models equipped with high cluster, remaining amount of fuel in liters until next service is displayed should appear.
- On all models, depress ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Radiator, Replace
Vehicle: 1991 BMW M3 2.3 L4 GAS
- Drain coolant into a suitable container.
- Remove clamping nipple through access hole.
- Rotate brackets approximately 90 degrees and unclip cable from bracket.
- Remove front bumper.
- Disconnect hood release cable.
- Unscrew both left and right side trim panels and pull panels out of side grommets.
- Remove upper radiator bracket.
- Disconnect lock carrier support and remove.
- Remove bolts and remove lower cooling air duct f...
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TECHNICAL SERVICE BULLETINS FOR 1991 BMW M3 AUTOMOBILES
OEM TSB listings for most 1991 BMW M3 cars and light trucks sold in the U.S. from 1985+.
Document: Tools and Equipment Vehicle: 1991 BMW M3 2.3 L4 GAS Auto Systems: |
Document: Turbocharger Installation Tool Vehicle: 1991 BMW M3 2.3 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 BMW M3 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 BMW M3 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 M3 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 M3 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 M3 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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