High Pressure Lines
WARNING: This page is about a different car, the 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Torque Wrench 5-50 Nm VAG 1331
- Ring Spanner Insert VAG 1331/2
NOTE:
Tighten the union nut on the high pressure pump Figure
High pressure line connections must not show any signs of damage.
Do not bend the high pressure lines to a different angle.
Never bend any of the fuel line mounting clamps.
If a mounting clamp was bent, or if the fuel line is being replaced, then the mounting clamps must also be replaced.
-- Coat the threads on the union nut with fuel.
-- Tighten the high pressure line union nuts by hand, making sure they are seated without tension.
-- Use the VAG 1331 with the open end VAG 1331/2 to tighten the high pressure line on the fuel rail.
- Tightening specification: union nut on the high pressure lines, 25 Nm
-- Only install the retaining tabs after tightening the high pressure lines.
-- Perform a leak test on the fuel system.