check to make make sure everything is tight. Have someone row throw the gears while you are under the car, paying close attention to the specific transitions. Like you said, the shifts to 2-4-6, are a specific motion. The bottom of the shifter is pushing the selector rod forward. High stress on the selector rod and bushings. You may need to add additional bushings/washers to take up some slop.

*Here's why I think that. The e53 varied frequently b/t needing washers and not needing washers on the shift rod/selector rod junction during the production run. UUC's is universal in that respect, and you need to address the fitment on a case to case basis.

Post me your actual part number on the shifter...... And I'll post the different variances.

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2005 X5 3.0, 6MT, Alpine White on Truffle Brown, Sport, Preim, and Cold Weather, Alpina Stainless Headers, AFe Intake, UUC SSK, OEM 87's, 3.64 Differential Swap,Performance Modified Euro 2 Tune, UUC LTW Flywheel and HD clutch, Bilstein B12 Suspension kit
Future mods ZHP/Schrick Cam Shaft upgrade, Operation code name:Doppelschrauben-Kompressor

Wife's Ride: 2011 e70 X5 351 M///Sport.

Also in the fold: 2004 X3 3.0, 6MT, Black Sapphire on Terracotta, port, Premium, Cold Weather.