As I understand it they are looking for a 3mm fillet weld on the inner right hand face at the base of the brake pedal actuator arm. In some cases it is incomplete/insufficient, so should be relatively easy for your dealer to identify if you are affected. The dealer has a bulletin from MMC showing the correct position and extent of the weld.
Everyone always talks about "Their Dealer" yet in the USA Dealerships are few and very far between.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
