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1990 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
- Component Locations
- 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 1990 BMW M3 AUTOMOBILES
A/C & Cooling System Maintenance -> BMW
Vehicle: 1990 BMW M3 2.3 L4 GAS
Inspection Interval Is Determined By Service Inspection Indicator.
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BRAKE SERVICE PROCEDURES FOR 1990 BMW M3 AUTOMOBILES
Anti-Lock Brakes -> COMPONENT REPLACEMENT -> CONTROL UNIT, REPLACE -> FRONT SPEED SENSOR, REPLACE -> HYDRAULIC UNIT, REPLACE -> REAR SPEED SENSOR, REPLACE
Vehicle: 1990 BMW M3 2.3 L4 GAS
HYDRAULIC UNIT, REPLACE
- Disconnect battery ground cable.
- Remove coolant expansion tank.
- Remove brake lines from hydraulic unit as follows: front left; front right; rear left; rear right.
- Remove brake hydraulic lines from master cylinder to hydraulic unit.
- Remove cover from top of hydraulic cover, then loosen, but do not remove, bolts for hydraulic unit.
- Remove retaining screws and pull of f multiple pin connector and disconnect ground wire.
- Pull up on the front of the hydraulic unit, then disconnect the rear and remove the unit.
- Reverse procedure to install, ensuring hydraulic lin...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 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: 1990 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 1990 BMW M3 AUTOMOBILES
DRIVESHAFT, Replace -> With constant velocity joint -> With slide
Vehicle: 1990 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 1990 BMW M3 AUTOMOBILES
Alternator, Replace
Vehicle: 1990 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 1990 BMW M3 AUTOMOBILES
BMW -> Automatic Transmission Indicator Lamp ->
Vehicle: 1990 BMW M3 2.3 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 system ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 BMW M3 AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 BMW M3 2.3 L4 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at union and remove hose.
- Remove hose from vehicle.
- Reverse procedure to in...
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COMPONENT LOCATION DIAGRAMS FOR 1990 BMW M3 AUTOMOBILES
Component location diagrams for most 1990 BMW M3 cars and light trucks sold in the U.S. from 1990+.
LH Side Of Evaporator Housing Diagram for 1990 BMW M3 2.3 L4 GAS Components on diagram: |
Main Harness Splice Locations Diagram for 1990 BMW M3 2.3 L4 GAS Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 BMW M3 AUTOMOBILES
OEM TSB listings for most 1990 BMW M3 cars and light trucks sold in the U.S. from 1985+.
Document: Tools and Equipment Vehicle: 1990 BMW M3 2.3 L4 GAS Auto Systems: |
Document: Diagnosis Feedback with ISTA Vehicle: 1990 BMW M3 2.3 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 BMW M3 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 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 1990 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 1990 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 1990 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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