I have heard that the 617 engines lose power a lot sooner in life than a 603. They wear the cylinder walls into an oval... The 603 doesn't have this problem, but might in the future have a head problem. If you don't let the 603 overheat, it will give you many years of problem free service....
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All it takes for evil to prevail is for good men to stand by and do nothing.
Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor
'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic
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