Bypass Flap with Cooler for EGR
Bypass Flap with Cooler for EGR
• Hose connections are secured with either spring type or clamp type clips.
• Always replace clamps.
• Use spring type clip pliers (VAS 5024 A) to install spring clips.
• Exhaust Gas Recirculation (EGR) overview. Refer to => [ EGR System ] EGR System.
1 Bolt
• 8 Nm
2 Vacuum Tube
3 Vacuum Line
• For cylinder bank 2.
• Make sure it is tight.
• To the EGR cooler switch over valve 2 (N381).
• Connection diagram for vacuum hoses. Refer to => [ Vacuum Hose Connection Diagram ] Vacuum Hose Connection Diagram.
4 Vacuum Hose
• For cylinder bank 1.
• Make sure it is tight.
• To the EGR cooler switch over valve (N345)
• Connection diagram for vacuum hoses. Refer to => [ Vacuum Hose Connection Diagram ] Vacuum Hose Connection Diagram.
5 Coolant Hose
• Between the cooler for Exhaust Gas Recirculation (EGR) and bypass flap.
• Make sure it is tight.
6 Bolt
• 40 Nm
7 Coolant Hose
• Make sure it is tight.
• Use the spring type clip pliers (VAS 5024 A) to remove and install.
8 Bolt
• 5 Nm
9 Coolant Line
10 Bracket
• For the coolant line - item 9 -.
11 Bolt
• 20 Nm
12 Coolant Hose
• Make sure it is tight.
• Use the spring type clip pliers (VAS 5024 A) to remove and install.
• To the heater core.
13 Vacuum Actuator
• For cylinder bank 1.
• Check operation using the hand vacuum pump (V.A.G 1390) at the vacuum connection.
14 Connecting Pipe
• For cylinder bank 1.
• From the EGR vacuum regulator solenoid valve (N18) (electro-pneumatic) with EGR potentiometer (G212) , see => [ (Item 16) EGR Vacuum Regulator Solenoid Valve with EGR Potentiometer ] EGR System.
15 Connecting Pipe
• For cylinder bank 1.
• To the connecting pipe => [ (Item 11) Connecting Pipe ] EGR System for the exhaust manifold.
16 Connecting Pipe
• For cylinder bank 2.
• From Valve 2 for EGR (N213) (electro-pneumatic) with exhaust gas recirculation position sensor 2 (G466) , see => [ (Item 16) EGR Vacuum Regulator Solenoid Valve with EGR Potentiometer ] EGR System.
17 Connecting Pipe
• For cylinder bank 2.
• To the connecting pipe => [ (Item 11) Connecting Pipe ] EGR System for the exhaust manifold.
18 Gasket
• Always replace
• Note the installed position.
19 Bracket
• For the bypass flap - item 20 -.
• Bolted to the cylinder block.
20 Bypass flap
• Remove and install with the EGR cooler - item 25 -. Refer to => [ Bypass Flap with EGR Cooler ] Service and Repair.
21 Vacuum Actuator
• For cylinder bank 2.
• Check the operation using the hand vacuum pump (V.A.G 1390) at the vacuum connection.
22 Ball Pin
• 3 Nm
• Fastened to the flange of the generator.
23 Rubber Bushing
24 Bracket
• For the cooler for Exhaust Gas Recirculation (EGR) - item 25 -.
25 Cooler for Exhaust Gas Recirculation (EGR)
• Together with the bypass flap - item 20 -.
• Removing and installing, refer to => [ Bypass Flap with EGR Cooler ] Service and Repair.
26 Coolant Hose
• Make sure it is tight.
• Use the spring type clip pliers (VAS 5024 A) to remove and install.
• From the coolant pipe.