el.p-

your current lights may be quite ineffective just due to wear, aging, crud/dust on the interior reflectors...coupled with the sub-par DOT 300CE units design (= poor lighting magnified)

you may not need to go fully to HID and spend HID $$$,- but just to the new W124 E-codes or new DOT W124 e-look units- to achieve tons better illumination...

just a thought