Suspension replacement 2012 GL450
 

Hi,

I have a 2012 GL450 giving me picture of air suspension up arrow saying Malfunction. Could someone suggest if you would replace failed OEM air suspension front and back with non-OEM part, e.g. Arnott or Structmaster. Arnott seems to have air suspension struct but not pure spring replacement. Structmaster on the other hand has a pure spring(non air) replacement. Is one reliability / ride quality / warranty better than the other? Roughly how much it would cost for this replacement?

thank you very much!

Desong

Warranty mercedes OEM part 1yr. Arnott, lifetime.