Carrying out bleeding operation - AR42.10-P-0010-02I

MODIFICATION NOTES

11.8.05

Bleed screw on rear axle fixed brake caliper

Type 215.379

FRONT AXLE FIXED BRAKE CALIPER

Number	Designation		Model 215.373/ 375/378, Model 215.376	Model 215.374/376/379 except 215.376
BA42.10-P-1002-02A	Bleed screw at front axle fixed brake caliper	Nm	7	14

FRONT AXLE FIXED BRAKE CALIPER

Number	Designation		Model 220 except 220.074/174/ 176/179, Model 220.175 without code Z07 +979	Model 220.074/174/ 179, model 220.176 without , model 220.175 with code Z07 +979	Model 220.176
BA42.10-P-1002-02A	Bleed screw at front axle fixed brake caliper	Nm	7	14	7

FRONT AXLE FLOATING BRAKE CALIPER

Number	Designation		Model 163.113 up to VIN A289564, X754619 163.154 up to VIN A289564 except	Type 163.11316
BA42.10-P-1002-03A	Bleed screw at front axle floating caliper	Nm	18	18

FRONT AXLE FIXED BRAKE CALIPER

Number	Designation		Model 163.113 as of VIN A289565, X754620 163.154 as of VIN A289565 except	Model 163.128/ 172/174/ 175	Model 163.128/except
BA42.10-P-1002-02A	Bleed screw at front axle fixed brake caliper	Nm	18	18	18

FRONT AXLE FLOATING BRAKE CALIPER

Number	Designation		Models 163.128/ 157/172/ 174/175	Model 163.154/157
BA42.10-P-1002-03A	Bleed screw at front axle floating caliper	Nm	18	18

FIXED CALIPER AT REAR

Number	Designation		Model 215.373/ 375/378/ 379	Model 215.374/ 376
BA42.10-P-1002-01A	Bleed screw on rear axle fixed brake caliper	Nm	7	14

FIXED CALIPER AT REAR

Number	Designation		Model 220.073/173/ 178/179/874/ 875/876/878, Model 220.070/075/ 170/175 with code 494 or 498 or 625	Model 220.074/174/ 176, Model 220.175 with codes Z07, Model 220.175 with code 494+Z04
BA42.10-P-1002-01A	Bleed screw on rear axle fixed brake caliper	Nm	7	14

FIXED CALIPER AT REAR

Number	Designation		Model 163.113 as of VIN A289565, X754620 163.154 as of VIN A289565
BA42.10-P-1002-01A	Bleed screw on rear axle fixed brake caliper	Nm	18

REAR AXLE FLOATING CALIPER

Number	Designation		Model 163.136	Models 163.154/157	Model 163.113 to VIN A289564, X754619 163.154 to VIN A289564
BA42.10-P-1001-17A	Bleed screw at rear axle floating caliper	Nm	18	18	18

CLUTCH ACTUATION

Number	Designation		Transmission 716.6
BA25.20-P-1001-01B	Bleed screw to central clutch operator	Nm	6

Fig 1: Identifying Socket Wrench (140 589 03 09 00)

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1008-11A	Brake bleeder wrench WAF 8
WH58.30-Z-1009-11A	Brake bleeder wrench WAF 10

Sequence of bleeding operation for brake calipers with one bleed screw, shown on model 220.

Fig 2: Identifying Sequence Of Bleeding Operation For Brake Calipers With Bleed Screw

Sequence of bleeding operation for 8-piston brake calipers at front axle with two bleed screws

Observe different sequence of bleeding operation for left-hand and right-hand drive vehicles.

Fig 3: Locating Bleeding Operation For Left-Hand And Right-Hand Drive Vehicles

Open bleed screw at brake caliper (1), allow approx. 80 cm³ of brake fluid to drain out free of bubbles , bleeding pressure 2 bar.
Repeat bleeding procedure at the brake calipers (2, 3, 4), allowing approx. 80 cm³ of brake fluid to drain out free of bubbles at each caliper.
On vehicles with 8-piston brake calipers at the front axle, observe the sequence shown in the figure.

3.1 Model 163

Repeat bleeding procedure at bleed screw of clutch slave cylinder, allow approx. 80 cm³ of brake fluid to drain out free of bubbles .

Model 163, 215, 220

If the brake pedal travel is still too long, an additional high-pressure bleeding operation is to be performed:

a) Start engine.

B) Open bleed screw on brake caliper (1), depressing the brake pedal in jerks in the process, hold down for approx. 3 seconds and release slowly (carry out the process approx. 5 times).

On model 163 the bleed screw should be opened with the commercially available tool listed above