You will have to change each bulb separately.

If you pull the gauge cluster off, it is a good idea to replace all the bulbs behind there at one time. I've pulled off the gauge cluster on my W124, but I've never done it on a W140. Try the search function and see if it's been posted.

Also, I changed the bulb in the gear shifter about two months ago, and it wasn't difficult. I used the search function and it was posted in detail before. I remember reading about this on a W140 several months ago.

I sometimes struggle with the search function, but if you can put in the right words, it'll come up.l

Good luck.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".