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333 Posts
When I bought the car, only one key fob would start the car, but both would unlock/lock. New battery in both fobs, no change.
For no reason, the fob in question started working, I was trying it out before shipping it to SOS diagnostics. I thought I was
back in business with two keys that worked!!! Well, this little gremlin likes to play, and I am his unwilling partner so to speak.
After a month or two, using the problematic fob, it failed again... and yes... I was away from home with out the backup fob.
Took it to the MB dealer, they reprogramed it, it worked great... for 24 hours, then back to its unreliable self again.
So, after another couple of months, with the bad fob left in the car so I could randomly try it... it worked!!! I am using it again
but this time with the second fob always available.
I have removed the fob guts, looked for dirt, junk etc... blown it out and cleaned the all the rubber contacts... but still find
it strange this gremlin likes to keep messing with me.
Sending both fobs, the Sam, and ECU to SOS seems like the next step, when it fails again...!
Does anyone have any idea what could be the problem with this key fob? I am fortunate my backup works fine, and hope to
keep it that way.
For no reason, the fob in question started working, I was trying it out before shipping it to SOS diagnostics. I thought I was
back in business with two keys that worked!!! Well, this little gremlin likes to play, and I am his unwilling partner so to speak.
After a month or two, using the problematic fob, it failed again... and yes... I was away from home with out the backup fob.
Took it to the MB dealer, they reprogramed it, it worked great... for 24 hours, then back to its unreliable self again.
So, after another couple of months, with the bad fob left in the car so I could randomly try it... it worked!!! I am using it again
but this time with the second fob always available.
I have removed the fob guts, looked for dirt, junk etc... blown it out and cleaned the all the rubber contacts... but still find
it strange this gremlin likes to keep messing with me.
Sending both fobs, the Sam, and ECU to SOS seems like the next step, when it fails again...!
Does anyone have any idea what could be the problem with this key fob? I am fortunate my backup works fine, and hope to
keep it that way.