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2003 BMW Z8 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
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Air Bag System Precautions -> BMW -> Disarming
Vehicle: 2003 BMW Z8 5.0 V8 GAS
Prior to disconnecting any air bag/Supplemental Restraint System (SRS) electrical connectors, servicing any system components or other components located near an SRS electrical connector, the system must be disarmed. The connectors and components are identified by their orange color.
- Obtain radio theft protection code prior to disconnecting battery.
- Disconnect grou...
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BRAKE SERVICE PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Hydraulic Brake Systems -> Tightening Specifications
Vehicle: 2003 BMW Z8 5.0 V8 GAS
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 BMW Z8 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: 2003 BMW Z8 5.0 V8 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 2003 BMW Z8 AUTOMOBILES
CV AXLE SHAFT, Replace -> REAR
Vehicle: 2003 BMW Z8 5.0 V8 GAS
REAR
- Raise and support vehicle, then remove rear tire and wheel assembly.
- Remove mounting bolts and rear splash shield.
- Remove expansion rivets, mounting screws and lower rear bumper trim.
- Support exhaust system with a suitable fixture tool and suitable jack.
- Mark connections for installation alignment, then disconnect oxygen sensor connectors.
- Disconnect oxygen sensor cables.
- Remove mounting bolts heat shield.
- Remove back body catalytic converter mounting nuts, then disconnect rubber mount and remove suspension.
- Remove catalytic converter mounting nuts from exhaust manifolds.
- Remo...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Component Locations
Vehicle: 2003 BMW Z8 5.0 V8 GAS
Refer to F...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Starter, Replace
Vehicle: 2003 BMW Z8 5.0 V8 GAS
- Raise and support vehicle.
- Remove front and rear lower engine covers.
- Remove mounting nut, then disconnect plug and battery positive lead from stater.
- Remove mounting bolts and starter mounting fr...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Cabin Air Filter Service -> BMW -> 2000-03 Z8
Vehicle: 2003 BMW Z8 5.0 V8 GAS
Service interval is determined by the service indicator.
- Open the hood.
- Remove the four cabin air filter cover retaining screws, then the cover.
- Release the cabin air filter retaining clips, then remove...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
BMW -> Service Indicator Cluster ->
Vehicle: 2003 BMW Z8 5.0 V8 GAS
The service indicator cluster is used indicate when periodic maintenance is required. The service indicator consists of one yellow, five green and three red Light Emitting Diodes (LEDs), with the inscriptions "Oil Service" and "Inspection." When the ignition switch is turned to the On position, as many as five green LEDs will be illuminated.
The green LEDs will go out when the engine is started. If the yellow LED and one of the inscriptions illuminates with the ignition switch in the On position, and remain on after the engine has started, service the maintenance inscription indicated immediately. ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Radiator, Replace
Vehicle: 2003 BMW Z8 5.0 V8 GAS
- Raise and support vehicle, then drain coolant into suitable container.
- Disconnect coolant lever sensor connector.
- Remove intake air filter housing.
- Disconnect clamps and coolant expansion tank hose.
- Open coolant expansion tank cap and remove vent plug.
- Disconnect clip and remove expansion tank.
- Remove fan cowl expanding rivets.
- Lock belt pulley in position using holding t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 BMW Z8 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 BMW Z8 5.0 V8 GAS
- If reusing belt, mark rotational direction for installation.
- Lock belt pulley in position using suitable holding tool, then remove mounting nut using suitable wrench. Nut has lefthand threads.
- Remove fan clutch.
- Remove engine splash shield.
- Tighten a...
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COMPONENT LOCATION DIAGRAMS FOR 2003 BMW Z8 AUTOMOBILES
Component location diagrams for most 2003 BMW Z8 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2003 BMW Z8 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 BMW Z8 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 BMW Z8 AUTOMOBILES
OEM TSB listings for most 2003 BMW Z8 cars and light trucks sold in the U.S. from 1985+.
Document: Tools and Equipment Vehicle: 2003 BMW Z8 5.0 V8 GAS Auto Systems: |
Document: Tools and Equipment Vehicle: 2003 BMW Z8 5.0 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 BMW Z8 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 BMW Z8 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 2003 BMW Z8 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 2003 BMW Z8 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 2003 BMW Z8 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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