There were more mods & service bulletins on this CARB than any other subject durning the 70's. Most techs today have no idea how to fix them, & neither did Mercedes!! Find another way to waste $$$$$$. Warpage of the top of the carb caused many problems. At one time a company called JAM ?? offered a bolt on Holley/Webber carb. It uses a "spread-bore" bolt pattern.
MERCEDES BENZ MASTER GUILD TECHNICIAN (6 TIMES)
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 16V ITS SCCA racecar