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  #1  
Old 10-18-2005, 09:59 AM
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1990 300se engine question

before i bought this car i checked around and posted here to determine the pros and cons of this model (esp. motor + trans). aside from comments about it being underpowered the consensus was that the motors are generally good; someone even going as far as to describe it as 'bullet-proof'. the other day someone told me that these engines are "weak"-and not "underpowered" weak but "not-gonna-last-too-long" weak. anybody care to weigh in on this?
thanks,
gregg
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  #2  
Old 10-18-2005, 10:21 AM
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Yeah, I think they are pretty solid engines overall.
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Old 10-18-2005, 11:05 AM
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You'll likely need a valve job every 150-200K miles to keep oil consumption and visible exhaust smoke in check. Wtih proper oil changes the bottom end will outlast the availability of gasoline in this earth.

Sixto
87 300SDL
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  #4  
Old 10-18-2005, 12:50 PM
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When they made this comment about the weak engine - Were they offering to buy the car off of you at the same time ?
You know, the "let me do you a favor" thing.....

Good car, Sollid engine - I got one.
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  #5  
Old 10-18-2005, 12:59 PM
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Location: DFW / Collin County Texas
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My 300E (same M103 engine) has almost 150K and doesn't burn a drop of oil. Never had valve or head work.
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  #6  
Old 10-18-2005, 02:48 PM
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It's valve seals that it needs every so often, not a valve job. Valve seals is not a big job - insignificant parts cost and a few hours of labor, or a reasonable DIY job. Someone was pulling your leg.
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