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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 BMW 525I 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 1991 BMW 525I automobile. Try the Automotix DIY solution today!
BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Power Brake Units -> TROUBLESHOOTING -> 318, 325, 525 & 535 -> BRAKE BOOSTER VACUUM SUPPLY CHECK -> FUNCTION TEST
Vehicle: 1991 BMW 525I 2.5 L6 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, ...
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BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Hydraulic Brakes -> BRAKE SYSTEM BLEEDING
Vehicle: 1991 BMW 525I 2.5 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 525I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Disc Brakes -> TIGHTENING SPECIFICATIONS
Vehicle: 1991 BMW 525I 2.5 L6 GAS
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 525I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Disc Brakes -> CALIPER REPLACEMENT -> FRONT -> REAR
Vehicle: 1991 BMW 525I 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 525I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Disc Brakes -> CALIPER OVERHAUL
Vehicle: 1991 BMW 525I 2.5 L6 GAS
- Remove piston boot and snap ring.
- Position block of wood in caliper recess, then apply compressed air to fluid inlet to force piston from bore.
- Remove bleeder screw.
- Remove piston seal using a suitable tool, taking care not to damage caliper bore.
- Remove dowel sleeves (5) from guide bolt bores, Fig. .
- Clean caliper and piston with alcohol, blow dry with compressed air and coat sealing surfaces with brake fluid.
- Inspect piston and replace if corroded, or if sealing surfa...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 525I BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 BMW 525I AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 BMW 525I cars and light trucks from 1990+.
Hydraulic Brakes -> BRAKE FORCE REGULATOR, REPLACE -> 318 & 325
Vehicle: 1991 BMW 525I 2.5 L6 GAS
318 & 325
- Remove brake fluid in reservoir with a syringe.
- Disconnect brak...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW 525I BRAKE SERVICE PROCEDURES
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