Turbocharger Component Overview
Turbocharger Component Overview
I - => [ Wastegate Bypass Regulator Valve (N75) and Turbocharger Recirculation Valve (N249) ]
II - => [ Coolant Supply and Oil Pipes ]
III - => [ Turbocharger and Coolant Return Pipe ]
IV - => [ Vacuum Diaphragm ]
Wastegate Bypass Regulator Valve (N75) and Turbocharger Recirculation Valve (N249)
1 Turbocharger
• Can only be replaced with the exhaust manifold and pressure unit.
• Removing and installing, refer to => [ Turbocharger ] Turbocharger.
2 to the Evaporative Emission (EVAP) Canister
3 Turbocharger Vacuum Diaphragm
• Checking, refer to => [ Turbocharger Vacuum Diaphragm, Checking ] Testing and Inspection.
• Removing and installing, refer to => [ Turbocharger Vacuum Diaphragm ] Service and Repair.
4 Hose
5 Hose
6 Bolt
• 3 Nm
7 Wastegate Bypass Regulator Valve
8 Hose
9 Connection
10 Securing Clip
11 Bolt
• 9 Nm
12 Seal
13 Turbocharger Recirculation Valve
• Note the installed position, refer to => [ Turbocharger Recirculation Valve (N249), Installed Position ] Turbocharger Recirculation Valve (N249), Installed Position.
14 Bolt
• 7 Nm
15 Seal
Coolant Supply and Oil Pipes
1 Seal
• Always replace.
2 Banjo Bolt
• 33 Nm
3 Oil Supply Pipe
4 Turbocharger
• Can only be replaced with the exhaust manifold and pressure unit.
• Removing and installing, refer to => [ Turbocharger ] Turbocharger.
5 Bolt
• 9 Nm
6 Bolt
• 9 Nm
7 Seal
• Always replace.
8 Banjo Bolt
• 38 Nm
9 Bolt
• 9 Nm
10 Banjo Bolt
• 38 Nm
11 Seal
• Always replace.
12 Coolant Supply Pipe
13 O-ring
• Always replace.
14 Bolt
• 9 Nm
15 Gasket
• Always replace.
16 Oil Return Pipe
17 Bolt
• 9 Nm
18 Gasket
• Always replace.
Turbocharged and Coolant Return Pipe
1 Gasket
• Always replace.
2 Nut
• Tightening sequence, refer to => [ Turbocharger Nut Tightening Sequence ].
• Always replace.
• Lubricate the studs of the exhaust manifold with hot bolt paste.
3 Banjo Bolt
• 38 Nm
4 Seal
• Always replace.
5 Coolant Return Pipe
6 Bolt
• 9 Nm
7 Turbocharger
• Can only be replaced with the exhaust manifold and pressure unit.
• Removing and installing, refer to => [ Turbocharger ] Turbocharger.
8 Bracket
9 Bolt
• 30 Nm
• Lubricate the bolt with hot bolt paste.
10 Bolt
• 30 Nm
• Lubricate the bolt with hot bolt paste.
11 Nut
• 30 Nm
• Do not loosen to remove the turbocharger.
• Always replace.
• Lubricate the studs of the exhaust manifold with hot bolt paste.
12 Fastening Strip
Turbocharger Nut Tightening Sequence
- Tighten the nuts - 1 through 5 - in 4 passes as follows:
- 1. Tighten the nuts to 5 Nm.
- 2. Tighten the nuts to 12 Nm.
- 3. Tighten the nuts to 16 Nm.
- 4. Tighten the nuts to 25 Nm.
Vacuum Diaphragm
• Engine codes CCTA and CBFA do not have an adjustable vacuum diaphragm.
1 Turbocharger
• Can only be replaced with the exhaust manifold and pressure unit.
• Removing and installing, refer to => [ Turbocharger ] Turbocharger.
2 Turbocharger and Vacuum Diaphragm
• Checking, refer to => [ Turbocharger Vacuum Diaphragm, Checking ] Testing and Inspection.
• Removing and installing, refer to => [ Turbocharger Vacuum Diaphragm ] Service and Repair.
3 Bolt
• 10 Nm
4 Nut
• 9 Nm
• Secure with sealing wax.
• Not available with engine codes CCTA and CBFA.
5 Securing Plate
• Not available with engine codes CCTA and CBFA.
6 Knurled Nut
• Not available with engine codes CCTA and CBFA.