TT Quattro Coupe L4-18L Turbo (BEA) Air Flow Meter/Sensor Component Diagrams - Page 5379
Air Flow Meter/Sensor: Testing and Inspection
Mass Air Flow (MAF) Sensor -G70-, Checking
Special tools and equipment
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VAG1526A
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VAG1594A
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VAG1598/31
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VAS5051 with VAG5051/1
or
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VAG1551 with VAG1551/3B
Test requirements:
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Coolant temperature at least 80 degree C.
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Electrical consumers switched off (radiator fan must NOT run during test).
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A/C switched off.
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Fuse for Mass Air Flow (MAF) sensor OK
Checking function
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Connect VAS5051 tester or VAG1551 scan tool and select the control module for engine electronics using "address word" 01. See: Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/Scan Tool Connecting and Initial
Checks/Connecting VAS 5051/VAG1551 Scan Tool
Engine must run at idle for this.
Indicated on display:
Rapid data transfer
HELP