Washers were standard on 330 and above even with just halogens.
All xenon equipped cars have the sensors for vertical aim on the O/S/F and O/S/R suspension arms - adaptive also have the steering angle sensor.
Unless you have a friendly tester I'd say you'd fail an MOT nowadays without washers as it's fairly obvious for the tester to see.
Current: 2014 F31 320d M-Sport, Professional Media, Visibility Pack, Reversing Camera, DAB
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