I have a M116 engine (i think) and it has the 6 foot chain running through it. Whenever I need to get her going hard like up a steep hill or something, I worry about this chain breaking. It has the double row chain! Do these things break easily or no if maintained?

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99 C43
98 S420
99 C230K
01 C240

Chains should be changed every 100k miles. Replace rails and tensioner also.

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euro 287
Mercedes Technician 7 Years (retired to Hyundai)
2000 Dodge Durango
98 Mazda truck

If you are really worried about it, or it is really old, have it checked for stretch.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record

It was changed 2 years ago and has not reached 100 000k yet. I think it has only about 40 000k on it.

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99 C43
98 S420
99 C230K
01 C240

40k on the chain. If you have changed the oil, then there is nothing to worry about.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record

If your 3.8 liter has the double chains, I wouldn't worry about it breaking or stretching (unlike the crap single row chains that were original equipment from 1981 to 1983 in 3.8 liter Benzes, but yours has been changed to the double) at any significant interval...

-Sam

Does anybody know if the '85 500SL (Euro) has either the single or double chain installed as standard?

Thanks,

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Don
'85 500SL (Euro) - 186,000 w/a complete restoration and engine rebuild at 154,000
'95 C280 - 174,000

I'm quite sure all the 5.0 liter M117 V-8s had the double chain. I think it was just an early 3.8 liter M116 issue.

-Sam