The air ride on the GLs used to be horrible to deal with because of no aftermarket support and a huge back order from Mercedes. Trucks would sit at MB for a month waiting for a part.

Now there's some aftermarket support and I think production of OEM parts have caught up to demand.

I wouldn't put up with it, personally, and go for a GLK250 diesel for the little extra coin.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!