I recently purchased a used 95 E320 (41K) with the previously mentioned problems occured (oil leak in front of engine, rear diff. leak).
My question is, how often can I expect these problems to re-occur. And, if often enough, would it be better for purchase the tools requred' for the job and learn how to DIY.
(What tools would be req'd to replace the rear diff seals, and front gasket?)

Although the car was out of warrenty, when I took it in to the dealer, he said they would fix the front oil leak for no charge as a 'customer satisfaction' service, but not the rear diff., a $350 job.
Mike Hallack, Carlsbad CA