Timing Chain on a 1989 300E

I am a college student in NJ and have a 1989 300E, with 119,000miles on the clock. THe car has been well maintained through the years, with mobile 1, ect.
Any suggestions on when I should have the chain replaced. Hw much would a Mercedes shop charge for a job like this?
Regards- Chuck- Bayville NJ
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Well let me see on my 91 300SE I had the head pulled, to stop an oil leak and while they were at it they did a valve job and replaced my timing chain and guides and it cost around $1200 at a local German auto repair shop, I don't have a MB shop close to me. So I would say it should be done for under $500.

1, ect. Any suggestions on when I should have the chain replaced. Hw much would a Mercedes shop charge for a job like this?

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Chains rarely wear out on the sixes, unless oil changes have been severely neglected and they are a short chain on the 300E, as opposed to the longer chains on the V8.
Unless the chain rattles at start up don't worry about it, especially if the chain fitted is the Duplex version. I have seen 260/300E engines with 300,000 miles on them still on the original duplex chain and it sounds like your car has been well maintained.
Having said that, if the head had to come off for work (not uncommon, as the 300E can have the odd head gasket problems) then I would have the chain replaced if I was going to keep the car until it fell apart and if I could afford the extra work. Remembering my days as a student, I'd just drive it!
Cheers,
-- Al Bolton, G4VSQ 1990 Mercedes 500SE 130,000 miles 1988 Mercedes 260E 155, 000 miles http://www.reading-city.net/Vintage_Radios

1, ect. Any suggestions on when I should have the chain replaced. Hw much would a Mercedes shop charge for a job like this?

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True, the chain itself rarely fails...but the guide rails, at least on the V8s, contain plastic pieces that get brittle with age. When these pieces fail they tend to drop into the timing gear teeth and/or chain and cause the chain to jump a notch or two or three...then you get the valves kissing the pistons....and major damages. Rule of thumb on V8 chains is: change oil every 5,000 or less and replace the chain and upper guide rails every 100K miles and/or 10 years. If the 6 cylincer engines have the plastic parts on the guide rails I would go with the 10 year plan and not worry too much about the mileage intervals. ___________________________________________

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I have a 91 300E i'm the 3rd owner at least. it has 235.000 miles on it with no visible oil consumption and the original chain also I don't beleive the head has ever been off. It runs smooth and quite. I ordered another head to have ready just incase something does go wrong but it's great at this mileage and age. I would wait till I hear some signs that something is going wrong.

1, ect. Any suggestions on when I should have the chain replaced. Hw much would a Mercedes shop charge for a job like this?

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