You can also use a generic fluid hand pump from a local auto store to pump the fluid out of a normal bottle through the fill plug. Saves you having to tear up the trunk.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

Use one of these http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_Suction-Gun-Performance-Tools_9240026-P_N3401C_T%7CGRP2082_____#to refill the diff as there is no way to pour the fluid up through the fill hole. With the vehicle level, fill until oil begins to run out of the fill hole. Once it begins to spill out give it a minute or so to drain. Once fluid stops running out it is filled to the proper level.

-Jim

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97' SL600 Sport Pano - Silver
90' 300e 2.6 - Silver Donated to a family member
95' C280 - Artic White
88' 924s - Guards Red Sold
98' Durango SLT - Silver
93' 740i Tripple Black Sold
95' 900s Conv - Red
96' XJ6 - Black - For Sale
95' 325i Convertible - Montreal Blue My Project Car