My 97 C280 has face lift headlights but older bumpers. It still has an extendable power antenna.

I thought my 2000 C230 parts car has same antenna but I'll have to look.

Also have a look at 96 / 97 E320 ( W210 ) , I'm pretty sure they still used a power antenna as well. The only difference might be the top portion where it hits the fender.