Smartkey is misbehaving
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2013 GLK 350
Smartkey is misbehaving
Not sure if this is where I post this. New to this sort of thing. But I got a question. Just got a 2013 GLK 350 and the key is acting as it should for the most part. It does unlock/lock/trunk open. And the infrared works as it can do the open and close of the windows holding the lock and unlock buttons. Also the vehicle starts as it should. But when I press buttons the red LED does not appear to be blinking and when the vehicle is locked and I pull on the door handle it doesn't unlock automatically with the key in my pocket. Or it doesn't lock by pressing the little rectangle on the door handle. I checked the antenna fuse in the trunk and it's okay. Is it a faulty key or something else? Oh and I tested the battery and it's at 3 volts. Thanks for any info!
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Not sure if this is where I post this. New to this sort of thing. But I got a question. Just got a 2013 GLK 350 and the key is acting as it should for the most part. It does unlock/lock/trunk open. And the infrared works as it can do the open and close of the windows holding the lock and unlock buttons. Also the vehicle starts as it should. But when I press buttons the red LED does not appear to be blinking and when the vehicle is locked and I pull on the door handle it doesn't unlock automatically with the key in my pocket. Or it doesn't lock by pressing the little rectangle on the door handle. I checked the antenna fuse in the trunk and it's okay. Is it a faulty key or something else? Oh and I tested the battery and it's at 3 volts. Thanks for any info!
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From: Lac Ste. Marie, Quebec
2006 Alfa Romeo Brera, 2010 GLK350, 2018 BMW 640i GT, 1997 Subaru SVX, 2012 Moto Guzzi Norge GT8V
I second that. Mine was unlocking fine with the (warm) remote but when the remote was cold (short drive in a cold car) it would not lock with the remote. I changed the battery (it showed 3 volts) and it works perfectly again. It's a cheap, easy fix and proceed from there if it doesn't work.
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Just FYI, it should lock if you touch the handle pretty much anywhere on the outer facing surface, not just the rectangle (I think that's the IR sensor).
Not much help, probably, but it sounds like your issue may be centered around the door handles. Can you open the rear hatch?
Not much help, probably, but it sounds like your issue may be centered around the door handles. Can you open the rear hatch?
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I second that. Mine was unlocking fine with the (warm) remote but when the remote was cold (short drive in a cold car) it would not lock with the remote. I changed the battery (it showed 3 volts) and it works perfectly again. It's a cheap, easy fix and proceed from there if it doesn't work.
Last edited by MBKLUE; Mar 29, 2022 at 02:34 PM.
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Just FYI, it should lock if you touch the handle pretty much anywhere on the outer facing surface, not just the rectangle (I think that's the IR sensor).
Not much help, probably, but it sounds like your issue may be centered around the door handles. Can you open the rear hatch?
Not much help, probably, but it sounds like your issue may be centered around the door handles. Can you open the rear hatch?
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2013 GLK 350
Half way there
So I installed a new battery. Ya sorry as a mechanic I should of put the actual voltage. The red LED is working now but the keyless entry (keyless-go in Mercedes terms?) Isn't working still. Yes the hatch is working just fine. With the key and on the actual hatch. Is there a setting in the GLK 350 I have to enable? Thank's for all the quick and timely replies. You are all the best.
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So I installed a new battery. Ya sorry as a mechanic I should of put the actual voltage. The red LED is working now but the keyless entry (keyless-go in Mercedes terms?) Isn't working still. Yes the hatch is working just fine. With the key and on the actual hatch. Is there a setting in the GLK 350 I have to enable? Thank's for all the quick and timely replies. You are all the best.
No spare/second key to try?
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
How about the other doors?
You didn't leave the spare key in the car, did you?
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If unlocking the rear hatch requires depressing that inner portion of the handle (the switch) then it's not exactly the same thing as just touching the door handles. If that's the case then the door handles are using touch sensitive circuitry while the rear hatch is a situation where you are depressing an electro-mechanical switch.
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2013 GLK 350
Update.
I don't have a spare key the vehicle only came with one unfortunately. And when the vehicle is locked and the fob in my pocket. The rear hatch doesn't open (still locked) by squeezing the handle or even being near it. None of the other doors unlock with the fob in my pocket as well. It does have the motorized lift on the hatch.
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I don't have a spare key the vehicle only came with one unfortunately. And when the vehicle is locked and the fob in my pocket. The rear hatch doesn't open (still locked) by squeezing the handle or even being near it. None of the other doors unlock with the fob in my pocket as well. It does have the motorized lift on the hatch.
If the car is yours, and you plan on keeping it for some time, I would spend the money to get a second key and have it programmed. Kind of spendy but some peace of mine. I bought a third key for mine and I rotate them every four months just because.
Don't really have any other ideas, myself. Hopefully someone else on here may.
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I don't have a spare key the vehicle only came with one unfortunately. And when the vehicle is locked and the fob in my pocket. The rear hatch doesn't open (still locked) by squeezing the handle or even being near it. None of the other doors unlock with the fob in my pocket as well. It does have the motorized lift on the hatch.
"Keyless-Go will not lock/unlock all four doors, however Keyless-Go will lock/unlock the trunk. Could all four door handles need replacing, and does that require removing the door panels? Could there be other solutions?
Thank you."
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
But, the fact that it fails both for the doors and the hatch (not touch sensitive) is pointing away from the handles.
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2013 GLK 350
It's still a mystery
Okay. Well ya, it's either the fob is still not acting fully correct or it's the handle/handles, or it's the RF antenna that is faulty. It's a crying shame that it doesn't work I thought the setting was just deactivated when I bought the vehicle. Even my shops $12000 dollar snapon scanner won't tell me anything, doesn't bring up a single code which I guess is good for the most part. But just not in this certain situation. I'm sure Mercedes has its own proprietary software to diagnose these fiddly things. I will thank you all again for the replies. It was a nice warm welcome to the forum. Ill keep an eye on the thread just in case someone has something else to add on the topic. As I will keep investigating the issue myself and will try to avoid the dreaded trip the dealer for as long as I can. It's a nice feature when it works.
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
If the hatch works the same as all the doors I think you can eliminate the handles as the problem, unless it's deep down in the module that detects handle action. You do need Mercedes diagnostics to figure out what happens (or doesn't happen) when you try to unlock it.
