Mercedes-Benz ML320. Manual — part 131

interconnected flap shafts are closed by means of vacuum by the intake manifold switchover diaphragm unit.

When the variable intake manifold switchover valve is open, the vacuum is supplied from a vacuum reservoir
with check valve in the intake manifold. The reservoir volume is designed for about 5 operations without
renewed evacuation.

The variable flaps open by means of spring force.

INTAKE MANIFOLD, LOCATION/TASK/DESIGN/FUNCTION - GF09.20-P-3102A

ENGINE
112.910 /911 /912 /913 /914 /916 /917 /920 /921 /922 /923 /940 /941 /942 /943 /944 /946 /947 /949 /953 /954 /95

ENGINE 113.940 /941 /942 /943 /948 /960 /961 /963 /965 /967 /966 /968 /969

Fig. 5: Identifying Intake Manifold Design/Function

Intake manifold,
location

GF09.20-P-3102-
01A

Intake manifold, task

Optimizing engine torque curve by means of two different
intake manifold lengths

Intake manifold,
design

GF09.20-P-3102-
03A

Intake manifold,
function

GF09.20-P-3102-
02A

2001 Mercedes-Benz ML320

1998-2005 ENGINE Air Intake, Turbo Charging - 163 Chassis

me

TESTING & REPAIR

INTAKE MANIFOLD CONNECTION DIAGRAM - AR09.20-P-1310-01A

Connection schema intake manifold Engine 112

Fig. 6: Intake Manifold Connection Diagram - Connection Schema Intake Manifold - Engine 112

INTAKE MANIFOLD CONNECTION DIAGRAM - AR09.20-P-1310-01AA

Connection diagram of intake manifold engine 112 with USA version code 494a

2001 Mercedes-Benz ML320

1998-2005 ENGINE Air Intake, Turbo Charging - 163 Chassis

me

Fig. 7: Intake Manifold Connection Diagram - Connection Diagram Of Intake Manifold - Engine 112
With USA Version Code 494a

INTAKE MANIFOLD CONNECTION DIAGRAM - AR09.20-P-1310-01AC

Shown on engine 113 with USA version code 494a

2001 Mercedes-Benz ML320

1998-2005 ENGINE Air Intake, Turbo Charging - 163 Chassis

me

Fig. 8: Intake Manifold Connection Diagram - Shown On Engine 113 With USA Version Code 494a

INTAKE MANIFOLD CONNECTION DIAGRAM - AR09.20-P-1310-01AU

Shown on engine 113

Fig. 9: Intake Manifold Connection Diagram - Shown On Engine 113

REMOVE/INSTALL INTAKE MANIFOLD - AR09.20-P-1310A

ENGINE 112.910 in MODEL 202.026/086

ENGINE 112.920 in MODEL 202.029/089

ENGINE 112.921 in MODEL 210.063/081 /263 /281

ENGINE 112.922 in MODEL 220.063/163

ENGINE 112.923 in MODEL 129.059

ENGINE 112.940 in MODEL 208.365/465

ENGINE 112.941 in MODEL 210.065/082/265/282

ENGINE 112.942 in MODEL 163.154

2001 Mercedes-Benz ML320

1998-2005 ENGINE Air Intake, Turbo Charging - 163 Chassis

me