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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 BMW 330I car and truck
repair procedures including BMW engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 2003 BMW 330I automobile. Try the Automotix DIY solution today!
BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Hydraulic Brake Systems -> Component Replacement -> 740 & 750 -> 745 -> M3, 325 & 330 -> M5, 525, 530 & 540 -> Master Cylinder, Replace -> Mini Cooper -> X5 -> Z3 -> Z8
Vehicle: 2003 BMW 330I 3.0 L6 GAS
Master Cylinder, Replace
Mini Cooper
- Suck brake fluid from expansion tank into suitable container using suitable suction bottle.
- Disconnect brake fluid level switch connector.
- Disconnect clutch hydraulic supply hose. Position line so that fluid does not drain. Plug or cap lines and openings.
- Disconnect expansion tank booster vacuum hose.
- Remove mounting bolt and expansion tank.
- Remove battery.
- Disconnect clips, lock and connectors, then remove Engine Control Module (ECM).
- Remove battery box mounting bolt and disconnect clips.
- Remove battery box.
- Disconnect brake lines. Plug or cap li...
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BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service -> 740 & 750 -> 745 -> Hydraulic Power Flow Regulator, Replace -> M3, 325 & 330 -> M3, M5, X5, Z3, Z8, 325, 330, 525, 530, 540, 740, 745, 750 & 760 -> M5, 525, 530 & 540 -> Mini Cooper -> Power Brake Booster, Replace -> X5 -> Z3 -> Z8
Vehicle: 2003 BMW 330I 3.0 L6 GAS
Hydraulic Power Flow Regulator, Replace
Mini Cooper
- Ensure ignition switch is in OFF position.
- Disconnect clip and air filter outlet hose.
- Remove air filter housing mounting bolts, then disconnect harness clip and connector.
- Remove air filter housing.
- With engine off, discharge hydraulic reservoir by operating brake pedal approximately 20 times with same force required for full stop braking action.
- Remove battery.
- Disconnect clips, lock and connectors, then remove Engine Control Module (ECM).
- Remove battery box mounting bolt and disconnect clips.
- Remove battery box.
- Disconnect val...
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BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Power Brake Units -> Diagnosis & Testing -> Brake Booster Low-Pressure Test
Vehicle: 2003 BMW 330I 3.0 L6 GAS
Brake Booster Low-Pressure Test
- Disconnect brake booster vacuum hose.
- Install vacuum test tool No. 34 3 100, or equivalent, between booster and check valve.
- Start engine and build up partial vacuum.
- Switch engine off.
- Press brake pedal to set partial vacuum of no more than 12 psi.
- When brake pedal is not pressed, partial vacuum...
CLICK HERE TO GET FULL ACCESS TO 2003 BMW 330I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Power Brake Units -> Description -> Hydraulic Booster System -> Vacuum Booster System
Vehicle: 2003 BMW 330I 3.0 L6 GAS
Hydraulic Booster System
The hydraulic system incorporates a power flow regulator which diverts a small flow of fluid from the power steering operating circuit for the power assisted brake system, Fig. . It charges the hydraulic reservoir in a high pressure range without impairing the function of power steering. The pressurized hydraulic oil volume is supplied to the booster for the sake of power assistance and is applied by operating the connected standard tandem master cylinder. Should the power steering pump fail, the hydraulic reservoir has sufficient reserve pressure to permit m...
CLICK HERE TO GET FULL ACCESS TO 2003 BMW 330I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Disc Brakes -> Rotor, Replace
Vehicle: 2003 BMW 330I 3.0 L6 GAS
- Raise and support vehicle, then remove tire and wheel assembly.
- Remove brake pads as outlined in "Pad, Replace," as required.
- Remove caliper mounting bolts, then position caliper aside with brake hoses connected.
- Remove mounting bolts and rotor. Tapping rotor wit...
CLICK HERE TO GET FULL ACCESS TO 2003 BMW 330I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 BMW 330I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 BMW 330I cars and light trucks from 1990+.
Power Brake Units -> Precautions -> Audio Coded Anti-Theft System
Vehicle: 2003 BMW 330I 3.0 L6 GAS
Audio Coded Anti-Theft System
Some original radios have a coded theft protection circuit. Obtain customer's code number before disconnecting the battery, removing fuses from the underhood fuse/relay box or removing the radio.
- After servicing vehicle, reconnect p...
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