I believe it's the only way. Though changing bulbs inside the unit can be done, the labour and time needed to do the work just doesn't worth it, and might as well cost as much as a new, whole unit. The other solution is to find a replacement(used) and/or rebuild(if there are any)unit. May help to cut down the costs.
W140s are very unique cars, and it's a small compromises we, as owners, have to take...
<LI>1992 Mercedes-Benz 400SE
<LI>Moonstone Grey/Black Leather
Mercedes Owners ICQ ActiveList ID#61730549