1 have a 94 s500 with 190000 a lifter on the left side is ticking and driving us nut!!! I have put in chemical helpers change the oil 2 time in 500 miles made the oil heavier from 40 to 50 can any one tell me how to fiexed or where i can buy a book with illustration of the valve train and what involves changing the lifters on the left side? the car runs great has good oil ps 3 while running and 1to2 while in idle
any ideas or solution will be appriciated thanks in advance