Checking Components

For the variable valve timing control to work, the engine oil must be at the correct level, of the correct grade and free of contaminants.

Check the level and quality of the engine oil. 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