Anyone has Vanos troubles?

[phoenixcsl]

Has anyone here experienced vanos troubles?

I had the dreaded cam gear rattle back at the beginning of the year, which I duly had fixed, thought everything was hunky dory etc.

Since Feb i've battled with Engine light coming on, car feeling sluggish, to be told that the Vanos is broken, fault codes point at the Vanos.

So, finally had authorisation to get things replaced by my 3rd party warranty co.

Yesterday I had fitted: new Intake and Exhaust Camshaft Sensors and a new Vanos Solenoid / Gasket etc on the car...no change, recurring engine management light, failed Vanos test.

Today, had a vanos unit from another M3 fitted to the car, again no change, again enginge managment light, again failing Vanos test, apparently the same vanos codes were thrown.

It's so disappointing, I am truly gutted, I've hardly driven the car since I bought it, probably around 2k miles which is rubbish.

Anyone got any bright ideas on what could be potentially the problem? I'm thinking that when the CAM Gears were changed the CAM timing has been totally spooned, this is the next thing to check, apart from that i'm completetly stumped