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Check hose connectors and fittings on intake system / vacuum system
Check all vacuum lines of the following component for tightness and proper installation:
Check air filter for fouling and correct mounting.
Intake hose
Throttle-housing
Check function of the tank ventilation.
B67 Sensor - Absolute Pressure, Intake Manifold
Brake Booster
Y1_Y21B Solenoid Valve - Twinport
Y56 Solenoid Valve - Exhaust Gas Recirculation
Check the following component for tightness and proper installation:
Oil Dipstick
Oil Filler Cap
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