Audi Workshop Service and Repair Manuals

• Intake pipe connection
• ◆ With motor for intake manifold flap -V157
• ◆ Checking motor for intake manifold flap -V157:

=> TDI Injection and Glow Plug System (4-cyl Pump Jet); Repair group 01

• ◆ With mechanical exhaust gas recirculation valve
• ◆ Checking => Page 26-50

• To the vacuum unit for boost pressure control
• Vacuum unit
• ◆ For exhaust gas recirculation changeover
• EGR valve 1 -N18
• ◆ Fitting location: On bulkhead in engine compartment
• ◆ Checking => Page 26-56
• ◆ Hose connection diagram =>Page 26-48

• Valve 2 for exhaust gas recirculation -N213
• ◆ Fitting location: On bulkhead in engine compartment
• ◆ Checking => Page 26-65
• ◆ Hose connection diagram =>Page 26-48
• Boost pressure control solenoid valve -N75
• ◆ Fitting location: On bulkhead in engine compartment
• ◆ Hose connection diagram =>Page 26-48
• Breather pipe
• ◆ To air cleaner
• To brake servo
• ◆ With deviation to vacuum pressure distributor for solenoid valves
• Tandem pump
• ◆ Generates vacuum for brake servo and solenoid valves
• Vacuum hose
• ◆ To vacuum unit