Volkswagen Workshop Service and Repair Manuals

Vehicles with engine code FN ▸ 07.79, Keihin carburettor and manual gearbox

=> Repair group 26

Engine code EM 08.79 ▸ 08.81 with manual gearbox

• Vacuum limiter

• Thermoswitch for intake manifold preheating
• Stage II thermopneumatic valve
• Servo unit
• Vacuum advance unit
• Vacuum retard unit
• Temperature regulator
• ◆ Single regulator
• Vacuum unit
• ◆ In air cleaner
• vacuum reservoir
• Restrictor
• Pull-down unit
• Intake manifold
• Keihin carburettor
• Stage II vacuum unit

Engine code EM 08.79 ▸ 07.81 with automatic gearbox

• Vacuum II reservoir for ignition retard
• Retard valve
• ◆ Black connection to carburettor
• Thermoswitch for intake manifold preheating

• Stage II thermopneumatic valve
• Servo unit
• Vacuum advance unit
• Vacuum retard unit
• Temperature regulator
• ◆ Single regulator
• Vacuum unit
• ◆ In air cleaner
• Vacuum reservoir for pull down
• Restrictor
• Pull-down unit
• Intake manifold
• Keihin carburettor
• Stage II vacuum unit

Engine code EM 08.81 ▸ with manual gearbox

• Thermoswitch for intake manifold preheating
• Thermopneumatic valve
• To servo unit
• Retard valve
• ◆ Position: White connection must point towards vacuum advance unit

• Vacuum reservoir
• Vacuum advance unit
• Vacuum retard unit
• Temperature regulator
• ◆ Single regulator
• Vacuum unit
• Vacuum reservoir
• Restrictor
• ◆ Green
• Pull-down unit
• Intake manifold
• Keihin carburettor
• Stage II vacuum unit
• Vacuum limiter

Engine code EM 08.81 ▸ with manual gearbox

• Thermopneumatic valve - EGR
• Thermoswitch for intake manifold preheating
• Stage II thermopneumatic valve

• To servo unit
• Vacuum advance unit
• Vacuum retard unit
• Temperature regulator
• ◆ Single regulator
• Vacuum unit
• Vacuum reservoir
• Pull-down unit
• Restrictor
• Intake manifold
• Keihin carburettor
• EGR valve
• Stage II vacuum unit

Engine code
HN 08.83 ▸07.84 with manual gearbox,
HN 08.83 ▸with automatic gearbox

• To consumption indicator
• To servo unit
• Overrun mixture valve
• ◆ Manual gearbox only
• EGR valve
• Control valve
• ◆ For overrun mixture valve
• ◆ Manual gearbox only

• Vacuum advance unit
• Thermoswitch for intake manifold preheating
• Stage II vacuum unit
• Keihin carburettor
• Intake manifold
• Pull-down unit
• Restrictor
• ◆ Green
• Vacuum reservoir
• ◆ Leak test: 30 mbar vacuum must be retained for min. 2 minutes
• Temperature regulator
• ◆ Single regulator
• Control box

Engine code EM 08.84 ▸ with manual gearbox

• To servo unit
• Vacuum advance unit
• Stage II vacuum unit
• Retard valve
• ◆ Position: Connect white to control valve connection

• Vacuum unit
• ◆ For overrun boost (throttle valve positioner)
• Control box
• Temperature regulator
• Vacuum switch
• ◆ Leak lest: 30 mbar vacuum must be retard for min. 2 minutes
• Restrictor
• ◆ Green
• Pull-down unit
• Keihin carburettor
• Intake manifold
• EGR valve
• Control valve
• ◆ For overrun boost

Engine code GY 02.86 ▸, HM 04.86 ▸ with manual gearbox
HM 07.87 ▸with automatic gearbox

• To servo unit
• Vacuum advance unit
• Stage II vacuum unit
• Control box
• Temperature regulator
• Pull-down unit
• Keihin carburettor
• Intake manifold