This page gives the exact flanging procedure: unbolt the relevant brake line at the caliper or wheel cylinder, catch escaping fluid for disposal, then cut through the line at a suitable point.
| Unbolt relevant brake line at brake caliper or wheel brake
cylinder; catch escaping brake fluid and dispose of this as per
regulations. |
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Cut through brake line at a suitable point (straight, freely
accessible section) using pipe cutter -2-. |
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Remove section to be renewed. |
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Degrease brake line surface. |
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Clamp brake line in set of grips -4-
so that approx. 50 mm project from plastic jaws. |
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Clamp scraper -3- into a drill
and place it onto brake line. |
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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. |
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Pull scraper off brake line and remove scrapings. |
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Remove grip wrench and slide brake line nut
-D- onto brake line. |
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Slide brake line -B- up to stop
-A- in flanging tool. |
 Note
| Brake line must be positioned against stop when the hexagon
socket head bolts are tightened, or the flange will not be
formed correctly. |
| – |
Clamp brake line in flanging tool until brake line can no
longer be moved. Fold up stop -A-,
then tighten hexagon socket head bolts diagonally using angle
screwdriver -C-. |
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Turn spindle as far as stop in flanging tool. |
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Turn spindle back again. |
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Unscrew hexagon socket head bolts in diagonal sequence. |
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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 5234-, connect
hose of bleed bottle to brake line flange and allow brake
filling and bleeding unit -VAS 5234- to run briefly until a
little brake fluid has run through. |
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Blow out new brake line to be inserted with compressed air. |
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Join brake lines using connector -E-. |
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Bleed brake system
→ Chapter. |
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Questions & answers
Work instructions — Volkswagen Golf Mk7
How do I use the Golf Mk7 GTE flanging tool?
Same procedure: cut, deburr, insert, double-flare. Compare with OEM shape.
1 -
Flanging tool upper part
Unbolt to change flanging jaws
2 -
Fastening for handle
Must be unscrewed to access ...
General notes on brake fluid
Only use new brake fluid conforming to VW standard
(VW 501 14).
Note
...
