So I purchased a new spare r11 pump for my 230 and almost got done installing it on the car. The issue is the air fitting next to the air filter on the WRD air valve housing is different between the pumps! Anyone know off hand what the different sizes might be? I measured the minor diameter of the new one to be about 12.4mm-ish. Based on that my guess is it’s an m14x1.5 but if anyone can point me in the right direction that would be A+!!