AND that special gasket is make only by ELRING!! WE replace the metal EGR pipe because unless you let it soak for a couple of days the "bends are next to impossible to clean.
Also if the inside of the pipe is scratched then it will clog up very quick!

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator