I agree with Joe P.

The C230 is probably a much better choice from a maintenance standpoint.

They are also less expensive.

I think that BMW has an even worse reputation for parts cost and expensive maintenance. If you think a Mercedes is expensive, a BMW will spank you all the way to the bank.

I know you are concerned about the head gasket and wiring harness on the C280, but they are a once-in-a-lifetime repair. If they've been updated, then you are set. If not, then budget those two items in the cost of your purchase (about $2,000 for the two), and then you can be happy for the rest of your ownership experience for the car.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".