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Message: <blockquote data-quote="bimmerholic" data-source="post: 459032" data-attributes="member: 16686">This is what i realise in comparison from the feedback of others.If your car was well maintained by the previous owner (i.e on the dot or earlier engine oil change interval), your original seals will be very much intact (not brittle & broken into pieces like keropok) during removal. Only noticeable defect is that the outer rings of the seals will be flattened instead of curve (when new). Mine was the case of it looking perfectly intact and not brittle. Just flattened on the outer surface when it glides in & out during its stroke. Previous owner had a beautiful record of maintenance. Which is why i did not feel any immediate or rather significant improvements. But nonetheless, to my surprise i had an error code thrown out "vanos mechanically jammed" after replacing it. NEVER had such error before. And of course after sometime of running in, it developed this slight hesitation during acceleration from stand still. At around say 1.5K.It's something like this. It accelerates (with my foot all the way down) from say 700 odd RPM (idle) to about 1.5K, holds it there about 1-1.5 seconds, and then it picks up speed. I also do realize my donut has worn out too. I'm not sure if that could be the cause of the hesitation. I will have to fix that first.</blockquote>