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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1994 BMW 540I 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
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system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
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BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> 735 & 750 -> 850 -> H-31 Hydraulic System -> Master Cylinder
Vehicle: 1994 BMW 540I 4.0 V8 GAS
H-31 Hydraulic System
The H-31 hydraulic system, Fig. , incorporates a power flow regulator which diverts a small flow of fluid from the power steering operating circuit for the power assisted brake system. 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 permi...
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BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Anti-lock Brakes -> Diagnosis & Testing -> 318 and 325 -> 525, 535, 735 & 750 -> Diagnostic Tests
Vehicle: 1994 BMW 540I 4.0 V8 GAS
The electronic control unit monitors the Anti-Lock Brake System (ABS) constantly. The system must be checked when the ABS indicator lamp does not go out, comes on while driving or does not come on when ignition is turned on. A BMW service tester ...
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BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Anti-lock Brakes -> System Service -> Brake System Bleed -> Component Replacement -> Control Unit, Replace -> Front Speed Sensor, Replace -> Hydraulic Unit, Replace -> Rear Speed Sensor, Replace
Vehicle: 1994 BMW 540I 4.0 V8 GAS
Brake System Bleed
Refer to "Hydraulic Brake Systems," for procedures.
Component Replacement
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 off multiple pin connector and disconnect ground wire.
- Pull up on the front of the hydraulic unit, then disconnect t...
CLICK HERE TO GET FULL ACCESS TO 1994 BMW 540I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Hydraulic Brake Systems -> Brake System Bleed
Vehicle: 1994 BMW 540I 4.0 V8 GAS
- 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 joints). Wheels must be able to turn freely.
- Attach...
CLICK HERE TO GET FULL ACCESS TO 1994 BMW 540I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Power Brake Units -> Diagnosis & Testing -> 318, 325, 525 & 535 -> Brake Booster Vacuum Supply Check -> Function Test
Vehicle: 1994 BMW 540I 4.0 V8 GAS
Function Test
- Operate brake pedal ten times with engine stopped.
- If brake pedal gives, system is okay.
- If brake pedal does not give, check valve, vacuum hose and/or rubber ring between master cylinder and brake booster could be defective.
Brake Booster Vacuum Supply Check
318, 325...
CLICK HERE TO GET FULL ACCESS TO 1994 BMW 540I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 BMW 540I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 BMW 540I cars and light trucks from 1990+.
Anti-lock Brakes -> Description
Vehicle: 1994 BMW 540I 4.0 V8 GAS
The Anti-Lock Brake System (ABS) consists of a control unit, hydraulic unit, speed sensors and wiring harness. Each speed sensor has a gear wheel which runs past the permanently magnetized edge of the speed sensor installed in the wheel hub. The rotary motion of the wheels is recorded by inductive sensors and an electric signal is sent to the electronic control unit.
The electronic control unit is located in a compartment on the right side of the engine compartment. This control unit inputs acceleration, deceleration and slip factors from the electronic speed sensors, which are propo...
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