Volkswagen Amarok 2011, Workshop Manual

Page: 233 / 259

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– Remove 2 bolts -arrows-.
– Carefully pull out high-pressure fuel pump. Sleeve can remain
inserted in vacuum pump.
Installing
– Renew high-pressure pump O-ring.
– Insert roller tappet in vacuum pump (first check roller tappet
for damage).
Note
♦
Roller tappet must be at bottom dead centre to enable high-
pressure pump to be installed.
♦
If same or a used high-pressure pump is installed, connection
for fuel pressurisation line (high-pressure side) must be re‐
newed. See assembly overview - high-pressure pump item 11
⇒ page 225
– Turn crankshaft until roller tappet is at bottom dead centre.
– Insert high-pressure pump into vacuum pump and tighten.
– Tighten bolts hand tight.
– Renew high-pressure pump connection.
• Specified torque: assembly overview - high-pressure pump
⇒ page 225 .
– Now tighten bolts in diagonal sequence to specified torque,
see assembly overview - high-pressure pump ⇒ page 225 .
– Tighten union nut of high-pressure line hand-tight. Align free
of tension.
• Specified torque for fuel pressurisation line (union nut): as‐
sembly overview - intake manifold ⇒ page 213 .
– Reattach connector to fuel pressure regulating valve -N276-
-1-.
– Put back fuse if it has been removed.
Note
Check fuel system for leaks.
2.17 Removing and installing engine control
unit
Special tools and workshop equipment required
Amarok 2011 ➤
4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
2. Injection system
227