This N63 came in with check engine light on,,,the fault was bank 2 intake vanos during cold start,,,,so the vanos unit wasn’t working properly during cold start operations,,,,performed the test play which operates the vanos units and checks there functioning properly. So what I found during the test is that the vanos solenoid for bank 2 intake was jamming,,,,so to remove the solenoid you have to remove or just loosen and push aside the turbo intake cooler,,,it’s not to bad to remove,,,there are just three bolt holding it in place,,,,one of the bolts is hidden and kind of hard to get to. Once you move the intercooler,,,,both vanos solenoid are behind the intercooler,,,,the one on top is the intake solenoid,,,,,and it’s the same on bank 1,,,,, the intake solenoid on top and the exhaust one on the bottom,,,,removing it is easy just one bolt and pull it out,,,,slide new on in. Here are the old and the new,,,new one on the right,,,,you can see the changed the design a little,,,they added a screen mesh over the holes,,,,so no dirt can clog or jam the solenoid valve,,,,because any little dirt that goes inside can cause problems.
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