I have a '93 300TE with 4Matic, also 280,000 miles. The front diff. has just started leaking. I would like to know what tool will fit the plug so I can check the lubricant when I raise the car on ramps for an oil change. Ordinarily, I have always had this checked when the car has been "garage serviced" for other work and I have never checked the fill fitting. I'd like to have the proper tool when I go down there. Also, where is the fill plug if it is not in an obvious place. This website has been a tremendous help in the DIY jobs I have done on our three MB's. Thanks, SRHarvey

'93 300TE 4Matic 280M
'83 240D sedan 240M
'82 380SL 140M
All great cars.