The ?? is why did they across the line switch to R & pinion? The new E, M, & S-class all have r & p steering, also the W203(new c-class) has it. I'll bet it's about $$$$$$. cause it's cheaper to build.

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MERCEDES BENZ MASTER GUILD TECHNICIAN (6 TIMES)
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V