Keyless Go module part number / location??
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Newbie
Joined: Jun 2023
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2010 E350
Keyless Go module part number / location??
How’s it going I just picked up an E350 but in my excitement forgot to confirm if the keyless go was working. I’ve been digging around the forums and have done my share of troubleshooting. I’m pretty sure it’s the module itself that needs to be replaced. Is there a website where I can put my VIN number in and find out the part number that I need or do I have to have someone plug up to my vehicle and tell me the part number via Xentry??
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Keyless chaos ... free fix
How’s it going I just picked up an E350 but in my excitement forgot to confirm if the keyless go was working. I’ve been digging around the forums and have done my share of troubleshooting. I’m pretty sure it’s the module itself that needs to be replaced. Is there a website where I can put my VIN number in and find out the part number that I need or do I have to have someone plug up to my vehicle and tell me the part number via Xentry??
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
Same'a true with ... :
D/P seat modules
F/R door modules
Thread Starter
Newbie
Joined: Jun 2023
Posts: 3
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2010 E350
How’s it going I just picked up an E350 but in my excitement forgot to confirm if the keyless go was working. I’ve been digging around the forums and have done my share of troubleshooting. I’m pretty sure it’s the module itself that needs to be replaced. Is there a website where I can put my VIN number in and find out the part number that I need or do I have to have someone plug up to my vehicle and tell me the part number via Xentry??
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
Also I’m a bit confused. Is the module located in the passengers side of the trunk or drivers side?? Thanks to anyone who can point me in the right direction.
Do you have a tutorial link for that repair process????
Out Of Control!!
Joined: Apr 2019
Posts: 12,092
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
MBWorld Fanatic!
Joined: Feb 2014
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Are you sure it has keyless go? Use the vin decoder and see if you have the option code, 889 I believe. It's usually several components, door handles antenna keyless go module etc. Keyless go module failure isn't very common. You would use EPC to look up the part numbers. Discontinued after 2018 but still works for older models. You can pick up a knock off copy of EPC on eBay for under $2 these days. Also comes with WIS which is the full dealer repair manual. You should get a scanner that can read mb specific codes to see what it says about the keyless go module.
https://www.lastvin.com/
https://www.ebay.com/itm/185421674259
https://www.lastvin.com/
https://www.ebay.com/itm/185421674259
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2010 E350
Yup, confirmed on lastvin.com. I have the keyless go package. I also have the common symptom of when I touch the door handle I get a message on the screen that says key not detected. Tried replacing my car key battery as well as unplugging my car battery for 15 min but still no keyless go. Same message I get when I try the push to start button. Thanks for the resources, I'm going to order that EPC program asap.
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2008 E350, 2012 ML350, 2014 E350, 2015 ML350
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Try getting a scanner then. There's a separate keyless go module and if there are problems, it should identify them. There was a firmware update also for the older MB cars. I had the MB dealer update the firmware on my car to fix bluetooth issues and Sirius issues. Also try the second key, it could just be your key, the keys go bad more often than any particular system in the car. I would think that if the key isn't detected, it's the antenna if it's a hardware problem. Or your replacement batteries aren't very good. Use a voltage meter and check the voltage of the battery in your fob, you should at least get a red flash when pressing the button. New the batteries are 3.30-3.35 volts and when you drop down to 3.06 volts, it starts to complain about low key fob battery voltage. If you don't have a 2nd key, a replacement can be pricey. Call around for different prices at different dealers, check with the parts department first and see if there are any coupons. You might be able to get one dealer to price match another further away. If you go to service, they'll probably want to charge you an hour for programming but there really isn't any programming, you just plug the key in and turn it to program it. Programming is basically removing the old keys from the system but they probably want a full hour for that.
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W212 e220 cdi Avantgarde
Yup, confirmed on lastvin.com. I have the keyless go package. I also have the common symptom of when I touch the door handle I get a message on the screen that says key not detected. Tried replacing my car key battery as well as unplugging my car battery for 15 min but still no keyless go. Same message I get when I try the push to start button. Thanks for the resources, I'm going to order that EPC program asap.
I have exactly the same issues on my e220 cdi. Did you manage to fix the issue? Was it your keyless go module?
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From: MA
2008 E350 4Matic, 2011 E350 4matic
When you press the button do you get the red light on your key fob? Did you hold the key right up next to the door handle? Things like a phone can block the signal. There's multiple antennas, did you try the other side of the car?
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2008 E350, 2012 ML350, 2014 E350, 2015 ML350
https://www.mercedesmedic.com/merced...b-not-working/
Last edited by JCM_MB; Sep 6, 2023 at 01:10 PM.
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W212 e220 cdi Avantgarde
I was home when I noticed my key (a new key with a new battery) wasn’t been recognised/ detected by the car so it wouldn’t crank. I went and got the spare key and the car recognised the spare key and I started and drove the car to my next destination and turned the car off. I went to start the car again and this key wasn’t been recognised and I couldn’t crank the car. Occasionally it would unlock the doors but very rarely. I had a new fob battery (I kept as a spare in the car only 2months old), I replaced the battery in the fob and the car started so l drove the car home and turned the car off and then went to re start the car and now nothing again. I called the RAA (Royal automotive assistance) and he checked the infrared on the fobs and we also put in another new battery in the fobs and no detection of the fobs and obviously no cranking. At one stage when he pressed the unlock button on the fob the car unlocked but that was the last time there was any connectivity between the fob and the car.
so I know it’s not the fobs so I’m down to
- the software may need an update
- the auxiliary battery in the trunk needs to be replaced
- the keyless go module needs to be replaced
I removed the button for the key less go because over the past 2 months I would occasionally get a red screen saying “key not detected” while I was driving and then the message would go away (I have owned the car for just over 2 months). One owner , full service history and 152,000 kms and it’s like new).
I’ll try again in the morning after it has sat for 8 hours and see if the fobs and the car detect each other. What could it be?
so I know it’s not the fobs so I’m down to
- the software may need an update
- the auxiliary battery in the trunk needs to be replaced
- the keyless go module needs to be replaced
I removed the button for the key less go because over the past 2 months I would occasionally get a red screen saying “key not detected” while I was driving and then the message would go away (I have owned the car for just over 2 months). One owner , full service history and 152,000 kms and it’s like new).
I’ll try again in the morning after it has sat for 8 hours and see if the fobs and the car detect each other. What could it be?
Last edited by Peter w212 e220; Sep 6, 2023 at 03:57 PM.
