Ja.

Any sort of rattle at startup, have it towed. Also if you get a tick when warm, you are looking at ball studs on at least one side. A louder noise means possible cam or lifter issues.

Be sure that the air pump works correctly during warm-up, that's an expensive little number.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe