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Old 02-08-2010, 02:33 PM
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Location: Just west of Baltimore
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1991 W124 engine trouble spots

Hello:

I have an '85 300D, but am seriously considering a '91 TE. I want that wagon bodystyle, and this one has good A/C, and my 300D does not. I hate to give up the diesel though, and I really do love my 300D.

Anyway - this wagon has 177k miles on it. Well maintained by an independent mechanic with a good reputation. Question - how durable are these gas engines? I figure I should get the compression tested to see how the rings/valves are sealing which should give me some info. What range am I looking for?

Are there any other specific trouble spots I need to check? I know the front end may need some work as the car ages, so I'll see how tight it feels. I also know about the self leveling suspension - this one works.

Thanks,

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'66 VW 1300 96K miles
'97 E300D 239K miles
'85 300D 203K miles (sold Sep 2012)


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Old 02-08-2010, 03:28 PM
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Location: Hburg PA
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The M103 engine leaks oil around the head gasket but this is common of all older engines like this and should not be of concern unless you lose a lot of oil.

These motors, from what I am to understand are relatively bullet proof and should run for several hundred thousand miles.
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1994 Mazda Miata
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Old 02-08-2010, 04:02 PM
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I believe the M110 and M103 are supposed to pretty reliable, and some claim as good as the OM616/7. I bet you'll have more difficulty diagnosing issues with the Otto cycle, though, but if that bug's yours, I'm sure you already know that.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition
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