You are looking at early version tensioner, YES they do have 2 balls & springs!! But the only part that should be used doesn't use these balls & has only one spring~!! Just installed 1 in my 16v engine so am sure that only correct part is as described.
MERCEDES BENZ MASTER GUILD TECHNICIAN (6 TIMES)
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V