11 74 ... Vacuum System Arrangement

11 74 ... Vacuum system arrangement (M57T2TOP_SCR)





1 Retaining clip on clean air pipe.
2 Hose clip on bracket for clean air pipe.
3 Connecting piece, red vacuum pipe to impeller bypass.





1 Heat shielding foil directly above high-pressure turbocharger.
2 Loose hose clip.
3 Connection, wastegate valve blue vacuum pipe to connecting piece.
4 Connection, wastegate valve from connecting piece, black vacuum pipe.

Important!
Black vacuum pipe must be high temperature resistant.

EURO vehicles:
1 EGR valve, blue vacuum pipe to pressure converter.





2 Vacuum adjuster for swirl flaps.
3 Electric changeover valve for swirl flaps, white vacuum pipe.
4 Electric changeover valve for hydraulic mountings (engine).
5 Pressure converter, blue vacuum pipe (1).
6 Connection for hydraulic mounting (engine), red vacuum pipe.
7 Connector, black vacuum pipe to (3) electric changeover valve for swirl flaps.
8 Connector, black vacuum pipe to electric changeover valve (4) for hydraulic mountings (engine).
9 Connector, black vacuum pipe to (5) pressure converter.
10 Connector, black vacuum pipe to vacuum accumulator.
11 Connector, black vacuum pipe to pressure converter for wastegate valve.





US vehicles:
1 Not fitted.
2 Not fitted.
3 Not fitted.
4 Electric changeover valve for hydraulic mountings (engine).
5 Not fitted.
6 Connection for hydraulic mounting (engine) red vacuum pipe.
7 Not fitted.
8 Connector, black vacuum pipe to electric changeover valve (4) for hydraulic mountings (engine).
9 Not fitted.
10 Connector, black vacuum pipe to vacuum accumulator.
11 Connector, black vacuum pipe to pressure converter for wastegate valve.





1 Black supply line to vacuum distributor (master VAC)
2 Vacuum accumulator to T-joint black vacuum pipe.
3 Connector on pressure converter to wastegate valve blue vacuum pipe; connector is marked with a blue spot.
4 Connector on pressure converter to turbine control flap blue vacuum pipe; connector is marked with a blue spot.
5 Connector on pressure converter for turbine control flap black vacuum pipe to vacuum accumulator T-joint.
6 Connector on pressure converter for wastegate valve black vacuum pipe to vacuum distributor (master VAC).





1 Secure vacuum pipes with a cable tie.
2 Secure vacuum pipes with a loose hose clip.
3 Secure vacuum pipes with heat shielding foil directly above high-pressure turbocharger.

1 Connector on pressure converter to wastegate valve blue vacuum pipe; connector is marked with a blue spot.





2 Connector on vacuum unit (turbine control flap), blue vacuum pipe.
3 Connector on pressure converter to turbine control flap blue vacuum pipe; connector is marked with a blue spot.
4 Connector on pressure converter for turbine control flap black vacuum pipe to vacuum accumulator T-joint.
5 Connector on pressure converter for wastegate valve black vacuum pipe to vacuum distributor (master VAC).





1 T-joint for vacuum accumulator.
2 Electric changeover valve for impeller bypass flap
3 Connector, red vacuum pipe to impeller bypass.
4 Connector, black vacuum pipe to T-joint (vacuum accumulator).





1 Connector, red vacuum pipe to impeller bypass.
2 Vacuum unit, impeller bypass.
3 Retaining clip on low-pressure turbocharger for black vacuum pipe (heat resistant)
4 Connection, wastegate valve from connecting piece, black vacuum pipe.

Important!
Black vacuum pipe must be high temperature resistant.

5 Connection, wastegate valve blue vacuum pipe to connecting piece.





1 Vacuum unit, bypass exhaust flap on EGR cooler.
2 Connection, bypass exhaust flap, blue vacuum pipe.





1 T-joint, connector for black vacuum pipe to vacuum distributor.
2 Connector on electric changeover valve to vacuum unit for bypass exhaust flap, blue vacuum pipe.
3 Connector on electric changeover valve for bypass exhaust flap, black vacuum pipe.