Hugo_Darlinghurst
Senior Member
★ Gold
Join Date: Feb 2010
Location: Darlinghurst NSW
Posts: 524
Club: Mercedes Classic Drivers Australia (MCDA) - chapter committee
Car: 1968 W108 280SE 5.0 Coupe
Craig - the W109 air-suspension lower control arms are part number 109 333 03 14 (LH) and 109 333 04 14 (RH).. they differ from the W108 spring arms in two ways: the air bellow seat is integrated into the upper face, and the geometry is shorter by 18mm (the W109 ride height is air-controlled so the arm doesn't need the W108's static-spring travel).
For a W108/W110/W111 owner converting to air, these are the correct factory parts and Craig's $600 pair is well below the European NOS price (€640 = $970).Both arms appear straight in the photos, bushes will need replacement (visible cracking on the inner bush).