cold start issuse there was TSB about it due to the uneven wear of the intermediate levers was certan year and build dates. yep N62 can be really love and hate have the 4.4i in one . with IKE it can be the YAW sesnor can be isssue but common for that fault i get it with mine i coded my out well the brake ass still all works. usally the n62 chains good but can be allways few hearn that have . i look at inpa in the motor setting allow you to view the vanos system details . if brisbane give rx automotive looks after mine e53 n62 or have talk to him