Turbocharger – assembly overview and fastening

Part I

• 1 Charge pressure control solenoid valve - N75-
• 2 10 Nm
• 3 7 Nm
• 4 Turbocharger air recirculation valve - N249-
  • To remove, pressure pipe must be removed ⇒ 1.2 Removing and installing turbocharger.
• 5 O-ring
  • Renew if damaged
• 6 Exhaust turbocharger
  • Removing and installing ⇒ 1.2 Removing and installing turbocharger
  • Checking turbocharger vacuum unit ⇒ 1.3 Checking vacuum unit for turbocharger.
  • Removing and installing vacuum unit for turbocharger ⇒ 1.4 Removing and installing vacuum unit for turbocharger.
  • Adjusting vacuum unit for turbocharger ⇒ 1.5 Adjusting vacuum unit for turbocharger.
• 7 Connection hose
• 8 Connection hose

Part II

• 1 8 Nm
• 2 Coolant pipe
• 3 O-ring
  • Renew
• 4 Exhaust turbocharger
  • Specified torque for catalytic converter studs: 20 Nm
  • Removing and installing ⇒ 1.2 Removing and installing turbocharger
  • Checking turbocharger vacuum unit ⇒ 1.3 Checking vacuum unit for turbocharger.
  • Removing and installing vacuum unit for turbocharger ⇒ 1.4 Removing and installing vacuum unit for turbocharger.
  • Adjusting vacuum unit for turbocharger ⇒ 1.5 Adjusting vacuum unit for turbocharger.
• 5 Seal
  • Renew
• 6 Bracket

• 7 Bracket

• 8 25 Nm
  • Renew studs and fastening nuts.

Screw the studs into cylinder head until they project only 25 mm.

Coat studs with high-temperature paste.

Observe tightening sequence: items -A- to -I-.

• 9 Coolant pipe
• 10 Seal
  • Renew
• 11 8 Nm
• 12 Oil return pipe
  • To remove, catalytic converter needs to be removed ⇒ 2 Exhaust gas cleaning.
• 13 Seal
  • Renew
• 14 Banjo bolt, 20 Nm
  • Secured to valve timing housing.
• 15 Oil supply pipe

• 16 Banjo bolt, 30 Nm