Good day everyone. Iwould like to obtain the information on how to remove the cylinder head from my bm 320d e46. The timing marks on the camshaft or elsewhere,etc. I suspect either sticky or burnt valves because during the compression test the compression is somewhat low on the no. 3 cylinder then gradually climbs up higher. I had the turbo replaced recently due to blown seals and since the turbo replacement could not start the car due to the low compression on no. 3 cylinder. Any help please.