Key fob unsynced from pulling fuses?
Thread Starter
Newbie
Joined: Dec 2020
Posts: 9
Likes: 5
From: New Jersey
CL55 AMG, C280
Key fob unsynced from pulling fuses?
Hi all. I'm the proud new owner of a 2004 CL55 in impeccable condition, garage kept and such a joy to drive. I knew before buying it that there were a few things for me to resolve (including proper ABC maintenance), but an unexpected issue has reared its head just a few weeks in.
While I was visiting my brother for the holidays, he noticed that the cigarette lighter didn't work and proceeded to pull all of the fuses to see if there was a blown one (I know……). The fuses were all fine, but now:
Thankfully the alarm/siren wasn’t working when I bought the car, so I can use the key blade without too much fanfare, but that obviously isn’t a long term solution. I went straight to MB to shell out for a new key (which I was planning on doing anyway) which will arrive and be programmed next week.
I’ve spent hours reading threads on this forum and elsewhere, and I’ve tried some of the ‘programming’ methods (holding unlock, pressing lock, etc.) to no avail. Any guesses on what might have happened? Could it be related to the alarm/siren? What are my odds of getting the dealer to re-program the original key, is that even possible?
While I was visiting my brother for the holidays, he noticed that the cigarette lighter didn't work and proceeded to pull all of the fuses to see if there was a blown one (I know……). The fuses were all fine, but now:
- The key fob no longer locks/unlocks (either via IR or RF) or opens the trunk
- The car will start with the key in the ignition, but if I try the Keyless Go button on the shifter, I get “Key Not Recognized”.
Thankfully the alarm/siren wasn’t working when I bought the car, so I can use the key blade without too much fanfare, but that obviously isn’t a long term solution. I went straight to MB to shell out for a new key (which I was planning on doing anyway) which will arrive and be programmed next week.
I’ve spent hours reading threads on this forum and elsewhere, and I’ve tried some of the ‘programming’ methods (holding unlock, pressing lock, etc.) to no avail. Any guesses on what might have happened? Could it be related to the alarm/siren? What are my odds of getting the dealer to re-program the original key, is that even possible?
Last edited by Flyingchange; Dec 27, 2020 at 08:37 PM.
Hi
looks like two options, the most usual is the first
1) by pulling ALL fuses you missed a slot and moved a fuse from a "in use " slot to a "not supposed to have a fuse because some option is not there" slot
2) the fuse you put back blow because you had a serious short, by putting it back you blow a module or another one
What are my odds of getting the dealer to re-program the original key, is that even possible? = 0 a key is not "re-programmable"
I think you went to fast
All you needed to do is first check the fuses, then if nothing good find someone with a Xentry Das system or buy one
it would locate the problem in seconds
looks like two options, the most usual is the first
1) by pulling ALL fuses you missed a slot and moved a fuse from a "in use " slot to a "not supposed to have a fuse because some option is not there" slot
2) the fuse you put back blow because you had a serious short, by putting it back you blow a module or another one
What are my odds of getting the dealer to re-program the original key, is that even possible? = 0 a key is not "re-programmable"
I think you went to fast
All you needed to do is first check the fuses, then if nothing good find someone with a Xentry Das system or buy one
it would locate the problem in seconds
Thread Starter
Newbie
Joined: Dec 2020
Posts: 9
Likes: 5
From: New Jersey
CL55 AMG, C280
Problem solved: looks like a few fuses weren't in the right slots. Thanks again for chiming in Peter!
@Martin, I'll be taking the car back to the indy in a few weeks to investigate cigarette lighter (and tidy up a few other things) so I can let you know what they find. Doesn't look like the fuse is the problem on mine.
@Martin, I'll be taking the car back to the indy in a few weeks to investigate cigarette lighter (and tidy up a few other things) so I can let you know what they find. Doesn't look like the fuse is the problem on mine.
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