I'm considering buying one and am wondering what, besides the Airmatic suspension, are weak spots and things to watch? Do the cars generally get more realiable as the the model years progress?

__________________
Thanks,

Joey

'88 560SL Pearl Black/Java 152K
'94 E320 Anthracite/Grey 89K


Previously:
'94 E420 Black/Bamboo
'90 300E
'71 280SEL 4.5