Note. Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold.
Type | |
- until mid-1995 release | Dual-circuit, with disc front and drum rear brakes. A pressure regulating valve is installed in the rear brake circuit. The parking brake acts on the rear brakes. There is a vacuum booster |
- since the middle of 1995 release | Dual-circuit, with disc front and rear brakes. The parking brake acts on individual brake pads on the rear wheels. There is a vacuum booster |
- cars with ABS | Double circuit, with disc front and rear brakes. The braking system is controlled by a hydraulic unit. The parking brake acts on individual brake pads on the rear wheels |
Brakes | |
- front wheels | Disc with floating brackets, self-aligning |
- rear wheels | Drum or disc with floating brackets, self-aligning |
- parking brake | Acts on the rear wheels. Separate brake pads with inner sides of the rear brake discs |
Front brakes
Disc brakes | |
Diameter - until mid-1995 release - since the middle of 1995 release | 257 mm 280 mm |
Brake disc thickness - after grinding: - until mid-1995 release - since the middle of 1995 release | 20.97 mm 24.97 mm |
Brake disc thickness - after wear: - until mid-1995 release - since the middle of 1995 release | 20.6mm 24.6 mm |
Max. brake disc runout: - until the middle of 1995 of release, on a diameter of 203 mm - from the middle of 1995 of release, at a distance of 29 mm from the outer edge | 0.13 mm 0.10 mm |
Brake pad thickness with metal plate: - new - min. admissible | 10.5mm 1.0 mm |
Rear wheel drum brakes - up to mid-1995 release
Adjustment | self-aligning |
Inner diameter | 254 mm |
Max. allowable runout | 0.15mm |
Max. permissible inner diameter after boring | 255.5 mm |
Brake shoe width | 50 mm |
brake pad thickness | 5.0 mm |
Min. allowable lining thickness | 1.0 mm |
Max. permissible piston clearance of the wheel cylinder | 0.15mm |
Rear wheel disc brakes - from mid-1995 release
Execution | Solid discs |
Disc diameter Disc thickness | 313.0 mm 18.0 mm |
Min. allowable disc thickness after machining | 16.97 mm |
Min. allowable brake pad thickness | 16.60 mm |
Max. allowable disc runout (measured at a distance of 22 mm from the outer edge) | 0.13mm |
Min. allowable lining thickness | 1.0 mm |
Brake disc/drum inner diameter | 210.0 mm |
Max. permissible inner diameter | 211.4 mm |
Brake master cylinder and brake booster
Piston-cylinder clearance 0.04 - 0.125 mm, limit (until mid-1995 release) | 0.15mm |
Brake booster, distance from flange to the end of the stem (until the end of 1995 release) | 18 - 18.2 mm |
Check valve, low pressure hose | The arrow on the valve indicates connection to the exhaust manifold |
Brake fluid | Only installed by Opel |
Fluid replacement | Until the end of 1995, issue once a year, then every 2 years |
The amount of liquid to be filled | about 0.4 l |
Tightening force of threaded connections, Nm
Note. Fastener tightening torques are also given in the text of Chapter "Brake system".
Thrust bolt of the main brake cylinder (all models) | 6 |
Piping to master cylinder | 12 |
Caliper to guide (guide pins:) - front brake, until mid-1995 release - front brake, from the middle of 1995 release - rear brake, from the middle of 1995 release | 32 74 44 |
Brake hose front to pipeline | 19 |
Brake drum to wheel hub | 4 |
The union for removal of air to the wheel cylinder | 8 |
Locknut, brake pedal | 34 |
The holder of a regulator of brake effort to the bridge | 13 |
Master brake cylinder to booster | 13 |
Brake master cylinder to tee | 16 |
Brake pipeline to hydraulic unit | 15 |
Locknut a pusher of the amplifier of a brake (until mid-1995 release) | 27 |
Locknut, brake booster tappet fork | 20 |
Parking brake adjuster locknut | 12 |
Hydraulic unit fastening nuts | 9 |
Brake force regulator to holder | 12 |
Nuts of fastening of the amplifier of a brake: - until mid-1995 release - since the middle of 1995 release | 26 21 |
Wheel cylinder to brake shield | 10 |
Brake hose hollow bolt to caliper | 35 |
Bolt of fastening of a tank | 2 |
ABS front speed sensor upper bolt | 6 |
ABS sensor cable bottom bolt | 27 |
Bolts of fastening of a forward casing of a brake disk | 13 |
Caliper mounts: - front - rear | 212 104 |
The holder of a brake hose back to the bridge | 13 |
Parking brake cable holder to axle | 9 |
Parking brake lever to floor | 20 |
ABS sensor sprocket mounting bolts | 18 |
Rear ABS sensor cable bolts | 22 |
Bolts of fastening of the forward gauge ABS | 9 |
Union nuts of brake pipelines | 15 |
Wheel mount: - with steel wheels - with light alloy wheels | 110 120 |
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