Audi Workshop Service and Repair Manuals

Note:

On vehicles 07.97 ▸ intake manifold pressure sender -G71 combined with intake manifold temperature sender -G72 is located on air duct pipe from charge air cooler to intake pipe. The connection hose shown in this illustration, from rear air duct pipe -1- to diesel direct injection system control unit -2- is therefore no longer required.

• Air duct pipe, rear
• ◆ Boost air cooler/intake pipe
• ◆ ä 06.97 with pressure connection for intake manifold pressure sender -G71

• From exhaust gas recirculation valve
• Control unit for diesel direct injection system -J248
• ◆ ä 06.97 with intake manifold pressure sender -G71
• Vacuum connection
• ◆ For air conditioner
• ◆ With filler cap on vehicles without air conditioner
• From brake servo
• Exhauster
• Vacuum unit for boost pressure control
• Vacuum hose
• ◆ To vacuum reservoir

• Vent line
• ◆ From solenoid valve for boost pressure limitation -N75 to air cleaner.
• Boost pressure control solenoid valve -N75
• Vacuum reservoir
• Vacuum hose
• ◆ From solenoid valve for boost pressure limitation -N75 to vacuum unit for boost pressure control
• Vacuum hose
• ◆ From solenoid valve for boost pressure limitation -N75 to non-return valve

• Non-return valve
• ◆ White connector to solenoid valve for boost pressure limitation -Fig.10- and to vacuum reservoir.
• Vent line
• ◆ To air cleaner
• Vent line
• ◆ To EGR valve -N18