Audi Workshop Service and Repair Manuals

Components A to E are not shown in the illustration.

•     A -    Glow plug relay (J52)
• ◆ Central electrics, relay position 4
•     B -    Accelerator pedal position sender (G79)
• ◆ In footwell on accelerator pedal
•     C -    Brake light switch (F) and brake pedal switch
• ◆ In footwell on brake pedal
• ◆ Combined as one unit
•     D -    Clutch pedal switch (F36)
• ◆ In footwell on clutch pedal
•     E -    Low/High heating output relay
  (Additional heater)
• ◆ Electronics box in plenum chamber
• ◆ Only on vehicles with manual gearbox

• Mechanical exhaust gas recirculation valve
• Coolant temperature sender (G62)
• Exhaust gas recirculation valve (N18)
• Connector
• ◆ 3 pin
• ◆ For engine speed sender (G28)
• Connector
• ◆ 2 pin
• ◆ For needle lift sender (G80)
• Intake manifold pressure sender (G71) and intake manifold temperature sender (G72)

Note:

Some vehicles are equipped with a 10-pin connector instead of an 8-pin and 3-pin connector (Item 7 and 8).

• Connector
• ◆ 8-pin
• ◆ For fuel temperature sender (G81)
• ◆ For quantity adjuster (N146)
• ◆ For modulating piston movement sender (G149)
• Connector
• ◆ 3 pin
• ◆ For commencement of injection valve (N108)
• ◆ For fuel shut-off valve (N109)

• Electronics box
• ◆ Diesel direct injection system control unit (J248) with altitude sender (F96)
• ◆ Diesel direct injection system relay (J322)
• ◆ Fuse for glow plugs
• ◆ Low/High heating output relay
  (only on vehicles with manual gearbox)
• Engine speed sender (G28)
• Injection pump
• ◆ With commencement of injection valve (N108)
• ◆ With fuel shut-off valve (N109)
• ◆ With fuel temperature sender
• ◆ With quantity adjuster (N146)
• ◆ With modulating piston movement sender (G149)

• Injector with needle lift sender (G80)
• Charge pressure control solenoid valve (N75)
• Air mass meter (G70)