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1999 BMW Z3 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT BMW REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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 1999 BMW Z3 AUTOMOBILES
BMW -> Manual A/C & Heater System Diagnosis & Testing -> A/C System Diagnosis & Testing -> System Performance Check
Vehicle: 1999 BMW Z3 Roadster 2.5 L6 GAS
System Performance Check
System performance check should be performed as both initial an diagnostic check for cooling related complaints and a final check after repairs are completed.
- Connect manifold gauge set to A/C system and place suitable temperature sensors at evaporator outlet and outside vehicle.
- Start engine and run until it reaches normal operating temperature. Front of vehicle should be at least 5 ft. away from any wall or air obstruction during test. Use an external fan to force air past condenser, if necessary. ...
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BRAKE SERVICE PROCEDURES FOR 1999 BMW Z3 AUTOMOBILES
Hydraulic Brake Systems -> Component Replacement -> 323Ci, 325, 328Ci & 330 & 2000 323i & 328i & 1999 323i & 328i Sedans -> 740 & 750 -> M3, Z3, 318, 3232, 325, 328 & 330 -> M5, 525, 528, 530 & 540 -> Master Cylinder, Replace -> X5 -> Z3, 318, 323is & 328is & 1998-99 M3, 328i & 1998 323i & 1999 323i & 328i Convertibles
Vehicle: 1999 BMW Z3 Roadster 2.5 L6 GAS
Master Cylinder, Replace
M3, Z3, 318, 3232, 325, 328 & 330
Z3, 318, 323is & 328is & 1998-99 M3, 328i & 1998 323i & 1999 323i & 328i Convertibles
- Remove brake fluid from master cylinder using suitable syringe.
- Remove mounting bolt.
- Disconnect reservoir from master cylinder by titling to side.
- Plug master cylinder connections.
- Disconnect brake lines, then plug bores and lines.
- Remove mounting nuts and master cylinder.
- Remove plug and clutch hose, as required.
- Reverse procedure to install, noting the following:
- Install new mounting nuts and seal.
- Coat sealing rings with suitable brake fl...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1999 BMW Z3 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: 1999 BMW Z3 Coupe 2.8 L6 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 1999 BMW Z3 AUTOMOBILES
DRIVESHAFT, Replace -> w/Rear Constant-Velocity Joint -> With Slide
Vehicle: 1999 BMW Z3 Coupe 2.8 L6 GAS
w/Rear Constant-Velocity Joint
- Raise and support vehicle.
- Remove exhaust system and heat shield.
- Remove mounting bolts and exhaust suspension frame.
- Remove transmission joint disk mounting nuts.
- Remove mounting nuts and differential final drive flange constant-velocity joint.
- Remove center bearing mounting bolts. Do not allow propeller shaft to fall into joints.
- Bend propeller shaft downward at center mount and disconnect transmission or constant-velocity joint centering pin.
- Protect constant-velocity joint with suitable transport cap.
- Reverse procedure to install, noting the followi...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1999 BMW Z3 AUTOMOBILES
Starter, Replace
Vehicle: 1999 BMW Z3 M Roadster 3.2 L6 GAS
- Raise and support vehicle.
- Remove mounting bolts and reinforcing brace.
- Remove fuel lines cover.
- Disconnect fuel lines from back-up lamp bracket.
- Remove mounting nuts and starter motor electrical connectors.
- Remove starter motor mounting bolts.
- Remove mounting nut, support a...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1999 BMW Z3 AUTOMOBILES
BMW -> Anti-Lock Brake System Warning Lamp ->
Vehicle: 1999 BMW Z3 Roadster 2.8 L6 GAS
The Anti-Lock 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. If the ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1999 BMW Z3 AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1999 BMW Z3 Roadster 2.8 L6 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at water outlet and remove hose.
- Remove hose from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1999 BMW Z3 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1999 BMW Z3 M Roadster 3.2 L6 GAS
- If reusing belt, mark rotational direction for installation.
- Lock belt pulley in position using suitable holding tool, then remove mounting nut using a suitable wrench. Nut has lefthand thread...
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COMPONENT LOCATION DIAGRAMS FOR 1999 BMW Z3 AUTOMOBILES
Component location diagrams for most 1999 BMW Z3 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1999 BMW Z3 AUTOMOBILES
OEM drawn wiring diagrams for most 1999 BMW Z3 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1999 BMW Z3 AUTOMOBILES
OEM TSB listings for most 1999 BMW Z3 cars and light trucks sold in the U.S. from 1985+.
Document: Tools and Equipment Vehicle: 1999 BMW Z3 Roadster 2.5 L6 GAS Auto Systems: |
Document: Tools and Equipment Vehicle: 1999 BMW Z3 Roadster 2.5 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1999 BMW Z3 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1999 BMW Z3 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 1999 BMW Z3 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 1999 BMW Z3 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 1999 BMW Z3 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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