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I own 1991 420 SEL. It has 250k mi. It doesn't rattle anywhere. It is tighter everywhere than either my Infiniti Q-45 or Lexus LS420 were at just 50K. I use O'Reilly parts. Based on how good the compression is, I expect I will make it to between 300K-400K before I need an engine overhaul. This car really can last to 1,000,000 if well maintained.

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14y ago
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Q: 1990 Mercedes Benz 350 how long will it last with 200000 miles if well maintained?
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