Cost of diesel engine (rebuilt) for '87 300TD - Mercedes-Benz Forum

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post #1 of 6 (permalink) Old 06-26-2009, 09:58 AM Thread Starter
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Cost of diesel engine (rebuilt) for '87 300TD

Does anyone know what the average price would be for a REBUILT engine on a Merc diesel 300TD wagon (1987)? Would this price be any different in mid-late '07 when diesel was much cheaper than it would currently, in mid '09? How much would the price vary depending on the work put into it to rebuild it? If a significant amount of work was done to rebuild it, what would the top price be? I'm looking for the price of the engine itself; not labor to install it.
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post #2 of 6 (permalink) Old 06-26-2009, 10:13 AM
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IIRC, the 300TD in '87 (W124 chassis) has the OM603 in either turbo or N/A variants. I'm pretty sure the US only got turbo engines and the OM603 is known to have some problems with the head. I can't tell you how much it would be to rebuild, but you may want to try your question in the W124 forum. They'd be much more likely to know.

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post #3 of 6 (permalink) Old 06-26-2009, 11:15 AM
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The US had only turbo versions. A full rebuilt motor will run $9000.

Mercedes Rebuilt Engines

Fuel prices have absolutely nothing to do with labor and engine parts.

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
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post #4 of 6 (permalink) Old 06-26-2009, 12:13 PM
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MB has recently jacked prices for most of the parts needed, so it would be more expensive now than in '07. I may find out soon enough, 'cause I'm thinking about rebuilding and selling the bottom end that I just pulled from my '87. Sleeves, pistons/rings, and main/rod bearings = Big dollah
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post #5 of 6 (permalink) Old 06-26-2009, 12:47 PM
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Last year when I was trying to reel in an 87 diesel sedan with supposedly a bad motor I researched OM 603 rebuilt prices. $9000 was the magic number then. It's an absurd amount of money to put into a 22 YO passenger car unless you intend to drive the thing for another 250k+ miles. Otherwise you're flushing money down the toilet.
The 87 engine does have cylinder head cracking problems and used heads are virtually nonexistant. Revised heads from such aptly-named MBZ diesels as "the rod bender" bolt on and don't have the cracking problem.
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post #6 of 6 (permalink) Old 06-26-2009, 02:33 PM
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Yeah, that's the thing with OM series engines. They are rare enough on this side of the pond that you can't just circumvent a rebuild and drop in a low-mileage example as easily as you can with a gasser.

I'm sure that's factored into the current market price for the rebuild.
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