Hi Rick.
Lovely car. I'm going to do my springs too when I get round to it. One thing I am please about is the aluminium bell on the disc hubs to stop the awful rust appearing there but your car doesn't seem to have them? It seems 535d discs are the conventional type...
Mine are like this:
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Ian
Current: 2021 G21 330i M-Sport
Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2