flying_whale

Hi Everyone,

Long story short, the driver-side front door of my 01 C320 (that just recently turned 151K miles) decided to stop locking when told so via the smartkey (or the dash button) and started throwing out the "Door Open" warning when driving. It's not the infamous "pin dance" where the lock bounces up and down a few times when it is trying to lock it. It just won't lock, unless i manually push it in from the inside (which takes some resistance) or lock it with the real metal key.

This started this morning (which was the first hot 88F+ day in the dc area in a long time if that makes a difference) after working perfectly ever since i got the car a year and a half ago. The door unlocks via the smartkey.

Also one of the side-issues this comes with is a "Remove Key" warning coupled with beeping when I turn the engine off which lasts until i remove the key from the ignition.

My question is two-fold: (1) is this likely meaning that the door lock needs to be replaced? and (2) can there be another issue at play, given that "door open" and the "remove key" signs?

Thank you all!

VVF

Sounds like the little switch in the door jamb has died.
https://www.google.com/search?q=w203...sm=93&ie=UTF-8

samaritrey

^ doubt it as it would say door open and light would stay on. I bet you have a bad door lock and unlike the pogo issue it is just getting old/weak. My car has had that issue on all 4 doors over the years and usually about a day before I decide that I will finally order the new lock it starts working again and just like you my driver lock is the one not working this month.

flying_whale

Thank you all for the input. Since, I'm too "shy" to take off the door panel and replace the lock as I've heard the airbag-related horror stories, i fiddled around with the lock, door closing mechanism and the door closed sensor and realized that the lock is fine, but the door close sensor was the problem. So I fixed it by taping the door close sensor in place in the door shut position. And everything now locks, and all the "door open" and "remove key" warnings disappeared. A simple and (in)elegant solution

VVF

Trey, he had the Door Open warnings, please read carefully

flying_whale,
You don't need to remove the door panel to replace the sensor though.

samaritrey

Forgive me lol drinking and posting at 4am lol
Easy fix should be this http://www.rmeuropean.com/Part-Numbe..._5C1313F8.aspx