Engine life is always dependent on servicing.

I've put pistons & rings in cars with 50K miles & seen other cars with 300K+ that were NEVER apart & still no engine issues.

Early 103's seemed to LOVE valve guides & seals. Replacement parts were better.

Some people HATE CIS cars & others hate EFI cars.

A good 1992 300E would "most likely" cost less to maintain that a 1993 300E with a M104 engine.

The 1994 & later do have a ventilation dust filter system that is better for the driver.
I also like the body up-dates on the 1994 & 95 models.
Make sure on a 1993 & later car that the engine & starter wiring harness has already been replaced!

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