Due to W221 was not fully equipped with LED lights, the brightness in some place is still insufficient. Such as side mirror courtesy lamp, trunk lamp etc. Let's replace those halogen bulbs with LED bulbs. Here is what I purchased link: https://ebay.to/36EBJqh

Video:

I've seen and love all your videos. I really appreciate that you take the time to help and teach us new skills. I have subscribed to your channel!

Thanks again!
Greg

I'm so happy you like my video and that's not a teaching, just share my experience, also I learned a lot in the forum. I like videography so I regret I miss many of chance to record like changing transmission oil, replace spark plus etc. After I realize it, I pick my camera up to record everything I can share. Replace M276 spark plug and flushing brake fluid for W221 and W212 are on my schedule soon. Thank you subscribe my channel.

I saw the mirror glass replacement video and now this one, they are very well documented, will help any w221 owner in the future.

I’m glad and happy seeing w221 owners who take care of their cars. Since the w221 is really close to my heart and I have already kept one in my collection.

Do you have any videos on changing spark plugs on 2013 S550? I need to do this

Is that W221 with M278 engine?

I just download MB official replacing spark plug guide from MB Star diagnosis, but I can not upload the pdf files larger than 5 MB by forum's limit.

thank you for sharing!

Great video! If your mirrors are noisy when opening, this would be a great time to lubricate the joint.

is there a trick to removing the cover..ive been following your video perfectly and the cover comes off at all corners except one and doesnt seem to want to release

There are three clips around the cover, you might refer 5:09 of the video to remove it.

mine appears to be screwed in on one corner.

While I tear down the downside cover there are two screws should be removed. Otherwise no other screws. Maybe your car is a different model?