How serious is this and what is cost to fix?

[The Radium King]

most likely failed variocam solenoid. to confirm drain the oil and look for green rubber bits that look like this:



work can be done with engine in car, but mechanic will most likely want to drop engine. lots of 'while you are in there' work to do - updated tensioners, chain tensioner pads, chains. do you want to fix both sides or just the side that failed, etc.

[Homeoboxter]

Originally Posted by The Radium King

most likely failed variocam solenoid. to confirm drain the oil and look for green rubber bits that look like this:



work can be done with engine in car, but mechanic will most likely want to drop engine. lots of 'while you are in there' work to do - updated tensioners, chain tensioner pads, chains. do you want to fix both sides or just the side that failed, etc.

The picture is showing the variocam actuator, not the solenoid. Both can fail and both will throw codes but different ones. Both will require pulling the head cover.