My SDL has hyd lifters and those started in '86, also the M103 was a hyd lifter motor too... BUT all the M116/7s I have seen are hyd lifter too in the S-class.

For what it's worth, my BMWs have adjustable valves too. I think they did away with those in about '94

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]