Tiguan 2021 ➤, Tiguan RUS 2021 ➤
Brake system - Edition 10.2020
4
Brake lines
4.1
Repairing brake lines
⇒ f4.1.2 or use of flanging tool”, page 123
4.1.1
Assembly overview - flanging tool
With flanging tool for brake lines -VAS 6056-, a flange can be
made on brake lines with 5 mm external pipe diameter without
damaging the lining. This allows partial replacement of brake
lines to save costs
NOTICE
Brake lines may only be bent to max. 90°, as they otherwise
kink or reveal deformations which constrict the line cross-sec‐
tion to an impermissible degree.
Preferably separate brake lines at underbody.
The positions of the intermediate pieces must be selected so
that they cannot chafe on moving parts.
Do not grease spindle; merely clean with methylated spirits.
Special tools and workshop equipment required
♦ Flanging tool for brake lines -VAS 6056-
♦ Brake filling and bleeding equipment -VAS 6860-
122
Rep. gr.47 - Brakes - hydraulics
Tiguan 2021 ➤, Tiguan RUS 2021 ➤
Brake system - Edition 10.2020
A - Flanging tool -VAS
6056/1-
❑ Flanging tool -VAS
6056/1- contains flang‐
ing jaws -VAS 6056/6-
B - Pipe cutter -VAS 6056/2-
C - Brake line scraper -VAS
6056/3-
❑ Grub screws (in shaft
and at side) are adjus‐
ted and must not be
tampered with!
D - Set of grips with plastic
jaws -VAS 6056/4-
E - Pipe bending tool -VAS
6056/5-
F - Special wrench, 6 mm
G - Clamp jaws -VAS 6056/6-
or clamp jaws -VAS 6056/7-
❑ -VAS 6056/6- for black
brake lines
❑ -VAS 6056/7- for green
brake lines
4.1.2
Instructions for use of flanging tool
– Unbolt respective brake line from brake caliper or wheel
brake cylinder. Catch escaping brake fluid and dispose of
this as per regulations.
– Cut through brake line at a suitable point (straight, freely
accessible section) using pipe cutter -VAS 6056/2- -B-.
– Remove section to be renewed.
– Degrease brake line surface.
4. Brake lines
123
Tiguan 2021 ➤, Tiguan RUS 2021 ➤
Brake system - Edition 10.2020
– Clamp brake line -1- in set of grips -D- so that approx.
50 mm project from plastic jaws.
– Clamp scraper -3- into a drill and place it onto brake line.
– At slow drill speed and with gentle pressure on brake line,
scrape coating off brake line.
Length of scraping is determined by stop in scraper.
– Pull scraper off brake line and remove scrapings.
– Remove set of grips and slide union bolt -2- onto brake line.
– Push brake line -1- against stop -arrow- in flanging tool -A-.
NOTICE
Brake line must be positioned against stop when the hexagon
socket head bolts are tightened, or the flange will not be
formed correctly.
– Tighten brake line in flanging tool until brake line can no lon‐
ger be moved. Then fold up stop -A-. Now tighten hexagon
socket head bolts diagonally using angle screw driver -C-.
124
Rep. gr.47 - Brakes - hydraulics
Tiguan 2021 ➤, Tiguan RUS 2021 ➤
Brake system - Edition 10.2020
– Turn spindle -arrow- to stop into flanging tool -A-.
– Turn spindle back again.
– Unscrew hexagon socket head bolts in diagonal sequence.
– Remove brake line from flanging tool, then clean and inspect
brake line and flange.
Briefly flush the section of brake line remaining in the vehicle:
– Connect brake filling and bleeding unit -VAS 6860-, connect
bleeder bottle hose to brake line flange and allow brake
filling and bleeding unit -VAS 6860- to run briefly until a little
of brake fluid has run through.
– Blow out the new brake line to be inserted with compressed
air.
– Join brake lines -1- using connecting piece -3-.
– Install brake line.
– Bleed brake system ⇒ page 126 .
4. Brake lines
125
2024 VW Tiguan Owner's Manual
