Keyless-Go Problem
Thread Starter
Newbie
Joined: May 2012
Posts: 9
Likes: 0
2002 CLK240
Keyless-Go Problem
Hi Guys,
1st time poster here. I have a query relating to starting/stopping the car using keyless go.
Right so, opening and locking the car works fine. No problems whatsoever there. But sometimes starting and stopping the car doesnt work. I've noticed that it does this mainly in the morning or if the cars been off for a couple of hours. Usually after the first start of the day using the key in the ignition, using keyless-go to start and stop the car works bang every time for the rest of the day.
Is it possible that it's a battery voltage problem? I've only just got the car and I don't know how old the battery is. I did notice that it wouldnt start at 12.4v and it did at 12.8v. Is this relevant?
Any help would be great, I just got the car and it's my 1st Merc after a string of BMWs. I must say, it's considerably more lux than the beemers. I just want everything to function
Cheers in advance
1st time poster here. I have a query relating to starting/stopping the car using keyless go.
Right so, opening and locking the car works fine. No problems whatsoever there. But sometimes starting and stopping the car doesnt work. I've noticed that it does this mainly in the morning or if the cars been off for a couple of hours. Usually after the first start of the day using the key in the ignition, using keyless-go to start and stop the car works bang every time for the rest of the day.
Is it possible that it's a battery voltage problem? I've only just got the car and I don't know how old the battery is. I did notice that it wouldnt start at 12.4v and it did at 12.8v. Is this relevant?
Any help would be great, I just got the car and it's my 1st Merc after a string of BMWs. I must say, it's considerably more lux than the beemers. I just want everything to function
Cheers in advance
Thread Starter
Newbie
Joined: May 2012
Posts: 9
Likes: 0
2002 CLK240
I just did that an hour ago. Won't be able to tell for sure until tomorrow morning. I just want to see if the battery voltage is an issue that'll affect the start/stop keyless function but not the opening/closing function.
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Joined: Jul 2010
Posts: 4,748
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From: A Canadian in Dubai, United Arab Emirates
'05 C200K SS, '05 Kleemann CLK500K, '08 Hummer H3 & '92 Z34 5sp (track car in Canada)
Hi Guys,
1st time poster here. I have a query relating to starting/stopping the car using keyless go.
Right so, opening and locking the car works fine. No problems whatsoever there. But sometimes starting and stopping the car doesnt work. I've noticed that it does this mainly in the morning or if the cars been off for a couple of hours. Usually after the first start of the day using the key in the ignition, using keyless-go to start and stop the car works bang every time for the rest of the day.
Is it possible that it's a battery voltage problem? I've only just got the car and I don't know how old the battery is. I did notice that it wouldnt start at 12.4v and it did at 12.8v. Is this relevant?
Any help would be great, I just got the car and it's my 1st Merc after a string of BMWs. I must say, it's considerably more lux than the beemers. I just want everything to function
Cheers in advance
1st time poster here. I have a query relating to starting/stopping the car using keyless go.
Right so, opening and locking the car works fine. No problems whatsoever there. But sometimes starting and stopping the car doesnt work. I've noticed that it does this mainly in the morning or if the cars been off for a couple of hours. Usually after the first start of the day using the key in the ignition, using keyless-go to start and stop the car works bang every time for the rest of the day.
Is it possible that it's a battery voltage problem? I've only just got the car and I don't know how old the battery is. I did notice that it wouldnt start at 12.4v and it did at 12.8v. Is this relevant?
Any help would be great, I just got the car and it's my 1st Merc after a string of BMWs. I must say, it's considerably more lux than the beemers. I just want everything to function
Cheers in advance
It's a Mercedes so who knows what electrical gremlin this one is
MBWorld Fanatic!
Joined: Jul 2010
Posts: 4,748
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From: A Canadian in Dubai, United Arab Emirates
'05 C200K SS, '05 Kleemann CLK500K, '08 Hummer H3 & '92 Z34 5sp (track car in Canada)
I really dont know pal, it's very odd what is happening. The 209 is notorious for electrical gremlins, I've had to hard-reset mine a few times - luckily it was solved the issues without fail.
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MBWorld Fanatic!
Joined: Jul 2010
Posts: 4,748
Likes: 0
From: A Canadian in Dubai, United Arab Emirates
'05 C200K SS, '05 Kleemann CLK500K, '08 Hummer H3 & '92 Z34 5sp (track car in Canada)
Nope, just disconnect your battery for a good 20-30 minutes. Yeah, sounds like a very Shade-Tree Mechanic thing to do on a German luxury car but it works. 
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NO LONGER ACTIVE
Also, it could be the battery in the key fob. When using the key in the ignition switch, the fob's battery is not used as the EIS supplies inductive power, but of course the RF functionality of KeylessGo needs the fob's battery to work.
Thread Starter
Newbie
Joined: May 2012
Posts: 9
Likes: 0
2002 CLK240
I changed the batteries in the key yesterday aswell. No difference. I'm thinking it's either an electricity leak or I need a 120Ah battery.
Got an appointment with a Merc specialist tomorrow. Fingers crossed its something stupid.
Got an appointment with a Merc specialist tomorrow. Fingers crossed its something stupid.
