volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Air Cleaner Housing|Service and Repair|Page 3099 > < Idle Speed, Checking|Page 3095
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Air Cleaner Housing: Service and Repair

Air Cleaner

1

-

Harness connector
-

Blacks, 2-pin

-

For Positive Crankshaft Ventilation (PCV) heating element -N79-

-

Check heating element voltage supply between terminals 1 and 2 with engine running: 
Specified value: at least 11.5 V

2

-

Intake hose
-

With Positive Crankshaft Ventilation (PCV) heating element -N79- for crankcase breather

3

-

Mass Air Flow (MAF) sensor -G70-* with Intake Air Temperature (IAT) sensor -G42-*
-

Checking -G70- See: Computers and Control Systems/Air Flow Meter/Sensor/Testing and Inspection 

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Checking -G42- See: Computers and Control Systems/Intake Air Temperature Sensor/Testing and Inspection 

-

Sensor and harness connector terminals are gold plated

4

-

Harness connector
-

Black, 5-pin

-

Sensor and harness connector terminals are gold plated

5

-

Seal
-

Replace if damaged

6

-

Air cleaner upper section

7

-

Air duct

Air Cleaner Housing|Service and Repair|Page 3099 > < Idle Speed, Checking|Page 3095