deeph8, if you are serious about purchasing this CLK430 pay a MB-trained tech familiar with that vintage MB vehicle to perform a PPI (pre-purchase inspection). That way you will know the condition of the vehicle and any pending major repairs. There is nothing more expensive than a cheap MB vehicle. Most sellers are selling for a reason, and not giving away well-maintained, reliable vehicles. You have already noticed the suspension needs attention. There may be other less noticeable and expensive maintenance items lurking for the novice. Obviously a skilled DIYer can perform basic repairs for much less money than an indie will charge, so factor that into your decision.

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Fred Hoelzle