The cold chisel in there did the job. Since there wasn't enough room to really lay back and whack on it, I tapped it in as tight as I could. I then used the chisel as a lever to break it free. A 1" putty knife broke the rest of it free.

Lacquer thinner and industrial Scotch Brite got the old stuff off. Even after three days, there was still oil dripping and seeping down the sides and out onto the flange.

Let's hope I got the right amount of Loctite 5900 back on it before I reassembled. I'll find out tomorrow, as I'm going to let it cure over night before adding the oil.

Thanks again for your, as always, most excellent help!

P.S. If you ever have to do this on a G500, raise the front of the body by the frame so that the front axle drops down. Makes it a lot easier to take the pan out over the axle. Also, while not mandatory, removing the skid plate makes access a whole lot easier - especially when trying to reach the connector at the top of the oil level sensor.

__________________
1973 280SE 4.5 (Sold)
1984 LWB 280GE (Sold)
2000 G500 NMLE - "Deep Throat"
2007 ML320 CDI (Sold)
2010 Porsche Cayenne S Transsyberia TipTronic (Sold)
2010 Audi Q7 3.0 TDI (Sold and Sorely Missed)
2014 ML350 BTC
2015 Audi Q7 3.0 TDI (On Order)