Note. Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold.
Total information
type of drive | Hydraulic, double circuit (with diagonal split) with vacuum booster. Electronic anti-skid system (ESP), emergency brake booster (BAS) and anti-lock brakes (ABS) |
Brake mechanisms | |
| Disc, ventilated, fixed caliper |
| Disc, floating caliper |
Parking brake | With manual cable drive to the shoe assemblies of the brake mechanisms of the rear wheels |
Brake mechanisms
Minimum allowable thickness of friction linings of brake pads, mm | 2.0 |
The minimum allowable thickness of the friction linings of the parking brake shoes, mm | 3.5 |
Front wheel brake disc diameter, mm | |
| 315 |
| 303 |
Brake disc thickness, mm | |
| |
| |
| 30 |
| 16 |
| |
| 27.4 |
| 13 |
| |
| 27.6 |
| 13.6 |
| |
| 16 |
| 14 |
Maximum admissible value of the runout of the brake disc, mm | |
| |
| 0.15 |
| 0.1 |
| 0.1 |
Master brake cylinder
GTZ diameter, mm | |
| 26.99 |
| 25.40 |
Piston stroke, mm | |
| 19 |
| 13.5 |
Vacuum brake booster
Vacuum booster diameter, mm | 203/228.6 |
Gain | 5.6 |
Pressure in the brake lines (at a depression depth in the inlet pipeline 0.6 ÷ 0.8 atm), atm | |
When depressing the foot brake pedal: | |
| 10 ÷ 21 |
| 32 ÷ 45 |
| 54 ÷ 63 |
| 76 ÷ 90 |
| 98 ÷ 120 |
ABS
Gap between wheel sensors and their rotors (measuring rings), mm | 0.7 ÷ 0.05 |
Tightening force of threaded connections, Nm
wheel bolts | |
| 180 |
| 130 |
Brake caliper bleed valves | 15 |
Mounting the brake pipe to the GTZ | 15 |
GTZ fastening nuts to the brake booster housing | 25 |
Brake pedal support bracket to brake booster nuts | 16 |
Bolts of fastening of the vacuum pump to a head of cylinders (diesel models) | 14 |
Attachment of brake lines to ABS/ESP hydraulic modulator | 15 |
Self-locking bolts for fastening wheel sensors to steering knuckles | 22 |
Nuts securing parking brake lever support bracket to transmission line tunnel | 8 |
Attachment of brake pipes to hydraulic lines | 15 |
Attaching brake lines to calipers | 15 |
Floating caliper guide pins | 30 |
Self-locking bolts for mounting brake pad wear sensors to calipers | 30 |
Fixed type caliper mounting bolts to front axle hinged casings | |
| 220 |
| 280 |
Locking bolt of fastening of a brake disk to a wheel nave | 25 |
Bolt of fastening of a cable of a drive of a parking brake to a plate of the holder | 20 |