On a C280 it should not change the looks much. In fact, the low beam pattern on my 98 C230 is identical to the euro light low beam pattern I installed on my 87 300E. (The older model 190 and 300 switch to euros gives both more light and better cosmetics). If you want more light, order replacement same wattage bulbs with repositioned filaments more usable light on the road from
http://www.fosmo.com/ . The Philips vision plus use the same wattage as stock, won't stress your wiring or reflectors, and put out more light than stock bulbs, for relatively low cost.
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John
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E