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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 BMW 735I 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 &
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procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
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BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Anti-Lock Brakes -> DESCRIPTION
Vehicle: 1991 BMW 735I 3.5 L6 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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BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Hydraulic Brakes -> BRAKE SYSTEM BLEEDING
Vehicle: 1991 BMW 735I 3.5 L6 GAS
The following procedure has been revised by BMW Technical Service Bulletin No. 34 06 90 (3134).
- 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 jo...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 735I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Anti-Lock Brakes -> DIAGNOSIS & TESTING
Vehicle: 1991 BMW 735I 3.5 L6 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 is required to check any malfunction of the syst...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 735I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Hydraulic Brakes -> COMPONENT REPLACEMENT -> 735, 750 & 850 -> MASTER CYLINDER, REPLACE -> POWER FLOW REGULATOR, REPLACE
Vehicle: 1991 BMW 735I 3.5 L6 GAS
MASTER CYLINDER, REPLACE
- Remove brake fluid from master cylinder with a syringe.
- Remove plug and clutch hose if equipped.
- Remove fluid reservoir.
- Remove brake lines, then mounting bolts.
- Remove master cylinder.
- Reverse procedure to install and bleed brake system.
POWER FLOW REGULATOR, REPLACE
735, 750 & 850
- With engine off, discharge hydraulic reservoir by operating brake...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 735I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Disc Brakes -> CALIPER REPLACEMENT -> FRONT -> REAR
Vehicle: 1991 BMW 735I 3.5 L6 GAS
FRONT
- Raise and support vehicle, then remove front wheel.
- Drain a moderate amount of brake fluid from reservoir with a syringe.
- Disconnect caliper brake hose.
- Remove caliper bolts and disconnect brake pad wear sensor electrical connector, if necessary.
- Remove caliper toward rear.
- Reverse procedure to install, noting the following:
- Tighten bolts to specifications.
- Blee...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 735I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 735I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 735I cars and light trucks from 1990+.
Hydraulic Brakes -> DESCRIPTION -> 735 & 750 -> 850 -> H-31 HYDRAULIC SYSTEM -> MASTER CYLINDER
Vehicle: 1991 BMW 735I 3.5 L6 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 permit...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 735I BRAKE SERVICE PROCEDURES
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