Checking Components

For variable valve timing control to operate correctly the engine oil must be at the correct level, of the correct quality and not contaminated.

Check the engine oil level and quality. Check for contaminants in particular.

Adjust the camshaft settings.

Other information: 

• For B5xx4T, see CAMSHAFT SEAL/VARIABLE VALVE TIMING (VVT) UNIT, REPLACING
• For B6xx4T, see CAMSHAFT SEAL/VARIABLE VALVE TIMING (VVT) UNIT, REPLACING .

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Camshaft Position Angle

Courtesy of VOLVO CARS CORPORATION

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  Refer to VERIFICATION