190e engines will have timing chain problems , they are very rattleing and loose engines to begin with. As for 300e like I have said before ( timing chains in these cars rarely go bad ) Yes they stretch a little but nothing like the famous v8 engines. I know I will get over half million miles out of my 103 motor cause its probably the strongest and most reliable gas motor built by mercedes except for the 104 and 119 they are excellent also.
