Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
VANOS solenoid valve, exhaust: Notes
The VANOS inlet and exhaust solenoid valves are positioned axially on the front of the cylinder head. The VANOS solenoid valves (with integrated non-return valve) distribute the engine oil pressure to the two VANOS units.
The variable camshaft timing control serves to enhance the torque in the lower and middle engine speed range. At the same time, the most favorable valve operation times for idle speed and maximum power output are adjusted.
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.