1991 BMW 325I Brake Service (ONLINE REPAIR MANUALS)

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BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Hydraulic Brakes -> COMPONENT REPLACEMENT -> 735, 750 & 850 -> MASTER CYLINDER, REPLACE -> POWER FLOW REGULATOR, REPLACE
Vehicle: 1991 BMW 325I 2.5 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...

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BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Anti-Lock Brakes -> COMPONENT REPLACEMENT -> CONTROL UNIT, REPLACE -> FRONT SPEED SENSOR, REPLACE -> HYDRAULIC UNIT, REPLACE -> REAR SPEED SENSOR, REPLACE
Vehicle: 1991 BMW 325I 2.5 L6 GAS

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 of f multiple pin connector and disconnect ground wire.
  • Pull up on the front of the hydraulic unit, then disconnect the rear and remove the unit.
  • Reverse procedure to install, ensuring hydraulic lin...

CLICK HERE TO GET FULL ACCESS TO 1991 BMW 325I BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Hydraulic Brakes -> DESCRIPTION -> 735 & 750 -> 850 -> H-31 HYDRAULIC SYSTEM -> MASTER CYLINDER
Vehicle: 1991 BMW 325I 2.5 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 325I BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Disc Brakes -> CALIPER REPLACEMENT -> FRONT -> REAR
Vehicle: 1991 BMW 325I 2.5 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 325I BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Disc Brakes -> FRONT DISC BRAKE PADS REPLACEMENT -> 318 & 325 -> EXCEPT 318 & 325
Vehicle: 1991 BMW 325I 2.5 L6 GAS

318 & 325

  • Raise and support vehicle, then remove front wheels.
  • Remove brake pad wear indicator connector from left side of caliper.
  • Remove anti-rattle clip, then the caliper sliding bolt plastic caps.
  • Lift brake hose out of holder, then remove caliper sliding bolts.
  • Remove caliper toward rear. Remove brake pads, then suspend caliper from frame with wire.
  • Reverse procedure to install, noting the following:
    • Compress caliper piston into bore.
    • Check fluid ...

CLICK HERE TO GET FULL ACCESS TO 1991 BMW 325I BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 BMW 325I AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 325I cars and light trucks from 1990+.

Disc Brakes -> REAR BRAKE PADS REPLACEMENT
Vehicle: 1991 BMW 325I 2.5 L6 GAS

  • Remove wheels and disconnect electrical connector from wear sensor, if equipped.
  • Pry caps off caliper guide bolts and remove guide bolts.
  • Pry outer pad retaining clamp...

CLICK HERE TO GET FULL ACCESS TO 1991 BMW 325I BRAKE SERVICE PROCEDURES

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