SL/R230: Keyless-Go Does Not Detect Key Help
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Newbie
Joined: May 2020
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SL500
Keyless-Go Does Not Detect Key Help
I recently bought a used 2006 SL500 and there are some functions that do not work such as the keyless-go feature. When we were offered the car, the used car dealer had to make a duplicate Mercedes key for the car so there would be two keys for the car when we purchased it. Both the used key and the new duplicate keys do not work for the Keyless-Go feature and I was wondering if there was a way for me to program the two keys to the car for me to use the feature. The two keys don't look identical, the new duplicate key looks like a key fob from newer models of Mercedes cars and the first one seems like it came with the car. Both of the keys work excluding the Keyless-Go, they both can unlock, lock, open the trunk, use the panic, and start the car by putting it in the key slot. Any way for me to solve this problem? Would I need the Mercedes Star Diagnostic Tool to the Keyless-Go working again? Thanks!
Last edited by Jeff Luong; May 4, 2020 at 02:45 PM.
Newbie
Joined: Jan 2020
Posts: 13
Likes: 3
From: Houston, TX
SL
I recently bought a used 2006 SL500 and there are some functions that do not work such as the keyless-go feature. When we were offered the car, the used car dealer had to make a duplicate Mercedes key for the car so there would be two keys for the car when we purchased it. Both the used key and the new duplicate keys do not work for the Keyless-Go feature and I was wondering if there was a way for me to program the two keys to the car for me to use the feature. The two keys don't look identical, the new duplicate key looks like a key fob from newer models of Mercedes cars and the first one seems like it came with the car. Both of the keys work excluding the Keyless-Go, they both can unlock, lock, open the trunk, use the panic, and start the car by putting it in the key slot. Any way for me to solve this problem? Would I need the Mercedes Star Diagnostic Tool to the Keyless-Go working again? Thanks!
could you open both keys and make a picture of both sides of both keys to check if keyless go is integrated ?
If yes, are batteries really full ?
if yes plausible cause:
Keyless go module not working
Keys not set in Keyless go module
If keys not set to then yes you need Xentry to assign them to Keyless go 1 and 2
if this is all you need to do and you do not intend to work a lot on your car I suggest you find a workshop with Xentry to do the job
do not go to MB dealers they will rip you off with keys
Thread Starter
Newbie
Joined: May 2020
Posts: 5
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SL500
so keyless go never worked yes ?
could you open both keys and make a picture of both sides of both keys to check if keyless go is integrated ?
If yes, are batteries really full ?
if yes plausible cause:
Keyless go module not working
Keys not set in Keyless go module
If keys not set to then yes you need Xentry to assign them to Keyless go 1 and 2
if this is all you need to do and you do not intend to work a lot on your car I suggest you find a workshop with Xentry to do the job
do not go to MB dealers they will rip you off with keys
could you open both keys and make a picture of both sides of both keys to check if keyless go is integrated ?
If yes, are batteries really full ?
if yes plausible cause:
Keyless go module not working
Keys not set in Keyless go module
If keys not set to then yes you need Xentry to assign them to Keyless go 1 and 2
if this is all you need to do and you do not intend to work a lot on your car I suggest you find a workshop with Xentry to do the job
do not go to MB dealers they will rip you off with keys
Back of the old key
Front of the old key
Thread Starter
Newbie
Joined: May 2020
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SL500
I've also noticed how the vehicle can not lock or unlock through the touch system on the door handles, the car would display key not detected on the dashboard. But when the key is not in the ignition switch and sitting inside the car, the car does detect that the key inside the car and beeps and says don't forget the key.
Member
Joined: Sep 2019
Posts: 230
Likes: 87
From: Northwich
R230 350SL
I had a similar issue when getting an official spare key from a main dealer, it worked everything except Keyless Go. Forgive me if I get the terminology wrong but from what I recall the Car has a number of tracks for the keys but a number of keys can be programmed to each track. However for Keyless Go, the keys must be programmed to different tracks. Ie if two Keyless Go keys were put on the same track they would both open and start the car but none of the Keyless functions would work.
If the keys come from Mercedes using their factory records they automatically are set to track one. Same as original.
When my dealer worked out what was happening they just reallocated the new key to a different track and it all started working properly.
If the keys come from Mercedes using their factory records they automatically are set to track one. Same as original.
When my dealer worked out what was happening they just reallocated the new key to a different track and it all started working properly.
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Verdad GallardoI had a similar issue when getting an official spare key from a main dealer, it worked everything except Keyless Go. Forgive me if I get the terminology wrong but from what I recall the Car has a number of tracks for the keys but a number of keys can be programmed to each track. However for Keyless Go, the keys must be programmed to different tracks. Ie if two Keyless Go keys were put on the same track they would both open and start the car but none of the Keyless functions would work.
If the keys come from Mercedes using their factory records they automatically are set to track one. Same as original.
When my dealer worked out what was happening they just reallocated the new key to a different track and it all started working properly.
If the keys come from Mercedes using their factory records they automatically are set to track one. Same as original.
When my dealer worked out what was happening they just reallocated the new key to a different track and it all started working properly.
you have 8 tracks in EIZ
to me if I remember well the keyless go ones should be in 1 to 5 only
then you go to the keyless go menu in xentry and affect any of 1-5 to keyless go track 1 or 2
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
I recently bought a used 2006 SL500 and there are some functions that do not work such as the keyless-go feature. When we were offered the car, the used car dealer had to make a duplicate Mercedes key for the car so there would be two keys for the car when we purchased it. Both the used key and the new duplicate keys do not work for the Keyless-Go feature and I was wondering if there was a way for me to program the two keys to the car for me to use the feature. The two keys don't look identical, the new duplicate key looks like a key fob from newer models of Mercedes cars and the first one seems like it came with the car. Both of the keys work excluding the Keyless-Go, they both can unlock, lock, open the trunk, use the panic, and start the car by putting it in the key slot. Any way for me to solve this problem? Would I need the Mercedes Star Diagnostic Tool to the Keyless-Go working again? Thanks!
Thread Starter
Newbie
Joined: May 2020
Posts: 5
Likes: 0
SL500
Thanks for the suggestion! I opened the rear fuse box and checked it and the fuse isn’t blown. I guess I just need to get the keys reprogrammed
Banned
Joined: Jan 2006
Posts: 1,982
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From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
It's my guess that the older key is original to the car and that this is not a key programming issue. Before you do anything, consider reading up on Keyless Go. A handful of documents in the WIS discuss it in depth, and that includes a procedure for programming keys.
If you have no access to the WIS, you can download the wiring diagrams here, proceed to the document main menu, choose group "80", find Keyless Go listed at the bottom, and then click on "System Information". That will take you to the vital documents from the WIS.
If you have no access to the WIS, you can download the wiring diagrams here, proceed to the document main menu, choose group "80", find Keyless Go listed at the bottom, and then click on "System Information". That will take you to the vital documents from the WIS.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,313
Likes: 1,214
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
As another member mentioned, the black key is an original KG key. They are not able to be be purchased. It likely has a battery, coding, or “car side sensor (one of the sensors that sees the key)” problem.
The silver and black key may or may not be keyless go but only could be if the key was programmed at the dealer.
I went through this. Cost was 600 including for key and program in 2019 for and 04 e55 that came with non kg silver black and after years I got a new key programmed, got door handles, etc.
good luck it’s a great feature but not the best designed way back.
The silver and black key may or may not be keyless go but only could be if the key was programmed at the dealer.
I went through this. Cost was 600 including for key and program in 2019 for and 04 e55 that came with non kg silver black and after years I got a new key programmed, got door handles, etc.
good luck it’s a great feature but not the best designed way back.
As another member mentioned, the black key is an original KG key. They are not able to be be purchased. It likely has a battery, coding, or “car side sensor (one of the sensors that sees the key)” problem.
The silver and black key may or may not be keyless go but only could be if the key was programmed at the dealer.
I went through this. Cost was 600 including for key and program in 2019 for and 04 e55 that came with non kg silver black and after years I got a new key programmed, got door handles, etc.
good luck it’s a great feature but not the best designed way back.
The silver and black key may or may not be keyless go but only could be if the key was programmed at the dealer.
I went through this. Cost was 600 including for key and program in 2019 for and 04 e55 that came with non kg silver black and after years I got a new key programmed, got door handles, etc.
good luck it’s a great feature but not the best designed way back.
magic how dealers can turn a 40$ key into 600$
Last edited by pmercury; May 6, 2020 at 06:57 AM.
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Joined: Feb 2017
Posts: 2,313
Likes: 1,214
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Thanks, it was very worth it.
Actually I did not get ripped off as price comparing a warranted oem dealer purchased item showed my purchase was within the realm of normal and reasonable.
PM since your reputation of the ability to provide free help and value precedes you, please do post for this gentleman and all others in the Mercedes world how you intend to sell us all working keyless go keys for 40. I will take five of them upon creation of an invoice from a valid company with a warranty.
For the OP, I have included a point of reference to make a reasonable and educated decision.
PM since your reputation of the ability to provide free help and value precedes you, please do post for this gentleman and all others in the Mercedes world how you intend to sell us all working keyless go keys for 40. I will take five of them upon creation of an invoice from a valid company with a warranty.
For the OP, I have included a point of reference to make a reasonable and educated decision.
Actually I did not get ripped off as price comparing a warranted oem dealer purchased item showed my purchase was within the realm of normal and reasonable.
PM since your reputation of the ability to provide free help and value precedes you, please do post for this gentleman and all others in the Mercedes world how you intend to sell us all working keyless go keys for 40. I will take five of them upon creation of an invoice from a valid company with a warranty.
For the OP, I have included a point of reference to make a reasonable and educated decision.
PM since your reputation of the ability to provide free help and value precedes you, please do post for this gentleman and all others in the Mercedes world how you intend to sell us all working keyless go keys for 40. I will take five of them upon creation of an invoice from a valid company with a warranty.
For the OP, I have included a point of reference to make a reasonable and educated decision.
to get it cheap is simple:
Any goo car locksmith you can find everywhere over the world buy blank keys for 40$ if you visit them you'll get as many keys programmed to your car for 120-150 $ each
that is what I meant
Junior Member
Joined: Apr 2020
Posts: 62
Likes: 13
From: Oklahoma
R230 2005 SL500, 1952 MGTD, 1973 MGB, 1998 ML320, 2002 X5
Based on my personal experience, a good locksmith can do it. He just have to hook up to EIS to program, cut a blank key for the mechanical lock/unlock portion. <$300.
As for the KG, if you push all those KG switches, I.e. Trunk round lock switch, Start Stop engine switch, Door handle switches...and all you've got is key not detected, then all the sensors are working!! Programing key slot is all you needed with SDS. That will be my guess.
As for the KG, if you push all those KG switches, I.e. Trunk round lock switch, Start Stop engine switch, Door handle switches...and all you've got is key not detected, then all the sensors are working!! Programing key slot is all you needed with SDS. That will be my guess.
prices depends of where you live
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,313
Likes: 1,214
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
no worries. Your option is a good one as well. I had researched all of the mentioned options and paying up was the easiest guarantee for me. I diy, had star, and solder, just not in this instance. I had it done when they did the tank warranty so convenience was key. The kg key became more expensive when the black ones became discontinued as new oem.
no worries. Your option is a good one as well. I had researched all of the mentioned options and paying up was the easiest guarantee for me. I diy, had star, and solder, just not in this instance. I had it done when they did the tank warranty so convenience was key. The kg key became more expensive when the black ones became discontinued as new oem.
I can tell you even more about the MB prices, they shoot the bill as they want, they have a lowest sale price for these parts where they already make a nice benefit.
example:
On some parts like windshields, exhausts, ... Example they get a Key from Germany for 120$ they the computer tells them min price must be 240$, then they have another 30% range they can add, depending on how you are dressed (this is humour)
This is how one day, after the local dealer noticed I stopped buying from them, suddenly change the price for a complete windshield + surroundings + they oem glue kit ect to 500$ for me
Same price changes as a bazar in Baghdad
And the final word is that before I discovered the car locksmith world, I did the same as you.. they charged me 315$ just for the key, I set it on my car myself
(yes they also charge over 100$ for 5min Xentry sometimes) Xentry is easy to use and pays for itself on the first self repair
edit
just today
remember, keys are one of the N1 dealer scams
take your time to find a locksmith, you'll save money you could spend on a real good 2020 Xenty system instead of cheap crap to save 150$ there
https://mybestdealers.com
Last edited by pmercury; May 10, 2020 at 11:58 AM.
