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B-24, Check: Intake-Air System/Charge-Air System
Test
Work Order Description
T01
Check: Function-Group Intake-Air System/Charge-Air System
Perform the following tests in the given order until a defect is found.
• Verify mechanical system functions/components
Exhaust-gas turbo charger
Exhaust system
• Check air filter for fouling and correct mounting.
• Check mass air flow sensor for fouling.
• Check intake system/charge air hoses for leaks (secondary air,
porosity and blockages)
• Check connected hoses and tubes for kinks, damage etc.
• Perform quick check data list:
Refer to Table B-02 Data List "T14" Barometric Pressure/Baromet-
ric Sensor Voltage
Refer to Table B-02 Data List "T15" Turbo Pressure/Turbo Pres-
sure Voltage
• If no defect has been found in previous test steps:
Refer to Table C-12, Boost Pressure Sensor Circuit
• After successful test/fault repair proceed to the next test step
Yes: –
ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z13DT ENGINE) 6-3-51
Nominal Value
No: –
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