This car would have the M112 V6 which does not have head gasket issues like the former M104. I have heard of problems with the harmonic balancer on early M112s. The spring perches are known to corrode and fail causing a dangerous collapse of the suspension. I do know that rust can be a problem on the W210. I would not even consider one that had rust, even if it only appears to be minor. The spring perches are known to corrode and fail causing a dangerous collapse of the suspension. A search should reveal more information on what particulars to look for. As always, a full inspection is a must before purchase.

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1989 300CE