I have a 300CD that has steering memory, if my last turn was to the left it pulls left or if the last turn was to the right it pulls right. It has been getting worse lately, I've had it aligned, changed the p/s fluid, checked all the joints etc. and tried to adjust the sector. I have found no problems with any of this and the tires wear ok. I think it must be in the p/s but it all seems normal, no growls or twitching standing still. Any ideas?