Hi my 2001 C320 is going in to get the rear differential worked on because of the recent humming coming from it,,,, My cars warranty runs out in about 500 miles. So this will be the last service under warranty... What else should i have the dealership perform in order to get the most from this last service? Will they only work on the car when theres something wrong with it? Or can i request to have other work done?

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2001 Mercedes-Benz C320 3.2
1991 Mercedes-Benz 300E 3.0

The last time I rode on your car I noticed the following:

A squeeking and creaking in the front end when hitting bumps.

An erratic idle, it hunts up and down sometimes after a long drive, and there feels like a random miss.

The transmission shifts funny sometimes, like it waits a while before getting into second, then abruptly catches the gear, sort of lurches.

There is a flicker in the instrument panel, like someone turning the dimmer up and down rapidly, only happens after driving at night for a while.

.....

This caused $10,000 in free warranty work to be done on our e320 which seemed to be running fine with 100 miles left on warranty..

get my drift?

Greg

Evan, to the best of my knowledge the dealer's Service Department will only perform warranty repairs that you bring to their attention, as opposed to diligently inspecting your vehicle for problems before the warranty expires and addressing them free of charge. Your best bet is to pay an independent mechanic for a thorough inspection of items covered under warranty. Then give the repair list to the dealer.

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Fred Hoelzle

Here's where the difference in dealers comes in. Some will and some won't. The tech at my dealership went over my ML430 with a fine tooth comb looking for leaks etc on my last warranty vist. They know of all the problems associated with each model if they do much warranty work. On my last vist he found an engine oil leak and a transmission leak and fixed them both under warranty.
My dealerships sevice department has been very proactive in fixing problems that have not been brought to their attention during my over four years of ownership. Just my 2 cents.