Subsequent Bleeding Of Hydraulic System; Testing Leak-Tightness - Skoda Kodiaq 2017 Workshop Manual

6.4 Subsequent bleeding of hydraulic sys‐
tem
Special tools and workshop equipment required
♦ Brake filling and bleeding device , e. g. - VAS 5234-
♦ Tool set for brake bleeding - VAS 6564-
♦ Insertion tool - VAS 6564/9-
♦ Bleeding bottle (commercially available)
♦ Braking fluid ⇒ Electronic Catalogue of Original Parts
Subsequent bleeding must be performed if the brake pedal travels
too far or if the »brake pedal "feels" soft«.
Note
A second mechanic is needed for this task.
– Firmly push the brake pedal to the floor and keep it held down.
– Connect the bleeder bottle.
– Open the bleeder screw on the brake caliper.
– Fully depress brake pedal.
– Close bleeder valve with pedal held down.
– Release brake pedal slowly.
– Repeat this operation on all calipers in the prescribed se‐
quence at least 5 times.
Bleeding sequence
1. Front left brake caliper
2. Front right brake caliper
3. Rear left brake caliper
4. Rear right brake caliper
– Check brake fluid level in the brake fluid container, if neces‐
sary top up with brake fluid.
– Perform a test drive. While doing so, at least one ABS adjust‐
ment must be carried out on vehicles with ABS!
6.5

Testing leak-tightness

Special tools and workshop equipment required
♦ Brake system tester e. g. -V.A.G 1310A-
♦ Adapter M 10 e.g. -V.A.G 1310/6-
Test requirements:
• Function and tightness of the brake system (brake lines, brake
hoses, brake calipers, hydraulic unit) O.K.
– Unscrew and remove the bleeder screw on one of the front
brake calipers.
– Connect the brake system tester e.g. - V.A.G 1310A- to the
brake caliper and bleed.
– Push down brake pedal until the pressure gauge indicates 5
MPa (50 bar). Throughout the test which lasts 45 s the pres‐
Kodiaq 2017 ➤ , Kodiaq 2019 ➤
Brake systems - Edition 11.2018
6. Hydraulic system
127