Maintenance, cleaning Throttle
 

Anyone here had experienced with a Throttle cleaning? Any suggestions with cleaning procedures and cleaning solutions? Thanks.

Why? The throggle body controls only air as the fuel is injected well after the throttle so deposits don't accumulate (like they did in carburators). If you keep your air filter in good repair the throttle body shouldn't get contaminated. If you talking about the foot pedal (which is totally electronic) some of the early one like mine "chattered" (stick/slip), but BMW replaced them under warranty.