The VANOS solenoid controls variable camshaft timing by controlling oil flow to the VANOS adjustment unit. These commonly fail at higher milages but are easy to replace. If your VANOS solenoid has failed, you could experience rough running conditions, a loss of power, and a check engine light. Replace your faulty solenoid with this OEM unit from Pierburg to restore smooth engine operation and power. Two are required for models with an N55 or S55 engine Four are required for models with an N63 or S63 engine
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Located at the rear of the high-pressure fuel rail, this pressure sensor relays fuel pressure information to the vehicle's DME/ECS and is a common source of fault codes.
