Key problem.
Thread Starter
Newbie
Joined: Jul 2017
Posts: 1
Likes: 0
2004 C230 Kompressor
Key problem.
Ok. I'm new to this but I have a question. I have a 2004 C230 Kompressor. I'm using the black spare key. It cranks the car fine. However, it doesn't lock and unlock the doors. When I press the buttons, the light on the key fob won't light up either. I changed the batteries and even replaced the key fob shell. I'm reading on different forums and it seems like I'm getting bad contact with the battery and the circuit board. Anyone have this problem? If so, what did you do to fix it without getting a new key?
Super Member
Joined: Oct 2012
Posts: 538
Likes: 89
From: Hollywood, CA
W209, W124
Newbie
Joined: Jul 2017
Posts: 7
Likes: 0
w203 2002
I also have a more or less similar problem. I recently bought my car and it came with one key , problem is the key does not lock or unlock the doors, l also changed the batteries and nothing. the red light on the remote isn't lighting up at all. What could be the problem?
Super Member
Joined: Oct 2012
Posts: 538
Likes: 89
From: Hollywood, CA
W209, W124
I also have a more or less similar problem. I recently bought my car and it came with one key , problem is the key does not lock or unlock the doors, l also changed the batteries and nothing. the red light on the remote isn't lighting up at all. What could be the problem?
If red light doesn't work , remote functions won't either.
Be very careful with removing PCB, as you are on last part of key working.
I suggest buying new key, THEN getting older one fixed.
When you have 2, you'll sleep better at night. Especially on road trips.
Newbie
Joined: Jul 2017
Posts: 7
Likes: 0
w203 2002
Make sure batteries in key are good AND installed correctly.
If red light doesn't work , remote functions won't either.
Be very careful with removing PCB, as you are on last part of key working.
I suggest buying new key, THEN getting older one fixed.
When you have 2, you'll sleep better at night. Especially on road trips.
If red light doesn't work , remote functions won't either.
Be very careful with removing PCB, as you are on last part of key working.
I suggest buying new key, THEN getting older one fixed.
When you have 2, you'll sleep better at night. Especially on road trips.
