My 1998 E320 wagon (Rear wheel drive) has excessive inner tire wear on the rear tires. Both sides. I had the car professionally aligned (all 4 wheels) in fall of 2012. What might be wrong besides a bad alignment - worn camber struts, pulling/pushing struts or track rod?

Car has 165,000 miles.

Get it on a machine that reads the vin and performs the alignment. Find someone reputable that can tell you if any suspension pieces need to be replaced.

Issue I have seen is that the run of the mill alignment shops do not always input the correct model info.

__________________
Jim