Keyless Go not working
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Keyless Go not working
Bought a 2013 GL550 with many features, including Keyless Go. However, I have noticed that neither of my two keys will allow me to unlock or lock the vehicle doors with the FOB in my pocket. I also cannot use the push button start feature with either FOB in the vehicle or my pocket. I've changed both CR2025 batteries in each FOB but that did not solve the issue. Both FOBs work to unlock and lock the vehicle by pushing the buttons, as well as open the rear hatch. Also, they work in the ignition port to start the vehicle. I have noticed that each has the little red light flash once when I push a button on the FOB, indicating they are operating. I tried the trick of using my phone camera to see the IR light flash when pushing a button, but didn't see any light from the very front of the FOBs. I'm hoping the vehicle I just bought doesn't have an issue that already is going to cost money to fix. Anyone have this issue that can provide some helpful advice? Thanks in advance!
Junior Member
Joined: Jun 2016
Posts: 33
Likes: 2
2002,ML500
Bought a 2013 GL550 with many features, including Keyless Go. However, I have noticed that neither of my two keys will allow me to unlock or lock the vehicle doors with the FOB in my pocket. I also cannot use the push button start feature with either FOB in the vehicle or my pocket. I've changed both CR2025 batteries in each FOB but that did not solve the issue. Both FOBs work to unlock and lock the vehicle by pushing the buttons, as well as open the rear hatch. Also, they work in the ignition port to start the vehicle. I have noticed that each has the little red light flash once when I push a button on the FOB, indicating they are operating. I tried the trick of using my phone camera to see the IR light flash when pushing a button, but didn't see any light from the very front of the FOBs. I'm hoping the vehicle I just bought doesn't have an issue that already is going to cost money to fix. Anyone have this issue that can provide some helpful advice? Thanks in advance!
Cleaning the button is easy and fast. Grab some MAF cleaner / Electrical contact cleaner or Zippo fluid and spray the whole button till all the dirt comes out.
Test and see if it works , If the keyless Start still do not work replace the button with the same part number ( Mercedes Dealer would be able to pull out the part number using your vin do not go for aftermarket) it should be below USD 50. The button is the common culprit for this kind of issues
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
I would check the keyless start button first, Take out the button and inspect for any damage/ dust/ dirt and clean if necessary.
Cleaning the button is easy and fast. Grab some MAF cleaner / Electrical contact cleaner or Zippo fluid and spray the whole button till all the dirt comes out.
Test and see if it works , If the keyless Start still do not work replace the button with the same part number ( Mercedes Dealer would be able to pull out the part number using your vin do not go for aftermarket) it should be below USD 50. The button is the common culprit for this kind of issues
Cleaning the button is easy and fast. Grab some MAF cleaner / Electrical contact cleaner or Zippo fluid and spray the whole button till all the dirt comes out.
Test and see if it works , If the keyless Start still do not work replace the button with the same part number ( Mercedes Dealer would be able to pull out the part number using your vin do not go for aftermarket) it should be below USD 50. The button is the common culprit for this kind of issues
Thanks for the quick reply. Unfortunately, I don't think it's the start button itself. The vehicle didn't come with one, and I picked the car up with the key in the ignition from the dealer. I was in a rush to get the car that day, so I neglected to check the Keyless Go features to unlock/lock the doors, and to test the push button start. I had a respected third party auto-inspection service check out the vehicle before I agreed to the purchase. However, that inspector also neglected to catch the issue. I ordered a new button from Mercedes Benz last week and tried it in the vehicle with the FOB in my pocket: no luck. I'm thinking it has to do with the RF signal antenna, or the key fobs need resetting. Anyone have this issue and find a viable solution?
Junior Member
Joined: Jun 2016
Posts: 33
Likes: 2
2002,ML500
Thaiedwin,
Thanks for the quick reply. Unfortunately, I don't think it's the start button itself. The vehicle didn't come with one, and I picked the car up with the key in the ignition from the dealer. I was in a rush to get the car that day, so I neglected to check the Keyless Go features to unlock/lock the doors, and to test the push button start. I had a respected third party auto-inspection service check out the vehicle before I agreed to the purchase. However, that inspector also neglected to catch the issue. I ordered a new button from Mercedes Benz last week and tried it in the vehicle with the FOB in my pocket: no luck. I'm thinking it has to do with the RF signal antenna, or the key fobs need resetting. Anyone have this issue and find a viable solution?
Thanks for the quick reply. Unfortunately, I don't think it's the start button itself. The vehicle didn't come with one, and I picked the car up with the key in the ignition from the dealer. I was in a rush to get the car that day, so I neglected to check the Keyless Go features to unlock/lock the doors, and to test the push button start. I had a respected third party auto-inspection service check out the vehicle before I agreed to the purchase. However, that inspector also neglected to catch the issue. I ordered a new button from Mercedes Benz last week and tried it in the vehicle with the FOB in my pocket: no luck. I'm thinking it has to do with the RF signal antenna, or the key fobs need resetting. Anyone have this issue and find a viable solution?
You might need to send it in to the Mercedes dealership to get it fixed. Is it a CPO vehicle?
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Junior Member
Joined: Jun 2016
Posts: 33
Likes: 2
2002,ML500
That's my next step after trying a FOB reset technique I found on another Mercedes forum. If that doesn't work, I'm taking it to the local indy-shop to do some diagnostics. I didn't purchase a CPO vehicle, but I was smart enough to get an extended warranty plan from Endurance that covers the car bumper to bumper for another 100k miles or 5 years. I may already have to use the plan to fix this malfunctioning Keyless Go module if that's the real culprit. Thanks again for responding.
The FOB reset technique is for older keys such as the ML up to MY2005. It is the flip keys as they do not open the doors without doing the sync on the FOB.
Another method to do reset is to leave the key in the ignition for 1hour I cant remember if it is at position 0 or position 1.
Senior Member
Joined: Aug 2016
Posts: 262
Likes: 30
2014 GL450
Are you certain the vehicle is equipped with keyless go? Was it indicated on the build sheet or window sticker? On the vehicle door handle, do you see a little rectangular marking? It would be present on all 4 doors.
Trending Topics
Junior Member
Joined: Jun 2016
Posts: 33
Likes: 2
2002,ML500
he did indicated that that he has keyless go and able lock and unlock the car with the key in his pocket
MB World Stories
The Best of Mercedes & AMG
8 Oddball Mercedes Ideas That Actually Made it to Production
Verdad Gallardo
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look
Verdad Gallardo
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Yes, I have run the VIN through several online decoders and they all indicate the vehicle is equipped with Keyless Go. Plus it has the push button start option which also indicates Keyless Go is on the vehicle.
Senior Member
Joined: Aug 2016
Posts: 262
Likes: 30
2014 GL450
1. touch the little square on any of the door handles? Does it lock the car (if unlock) or re-locked if previously locked? You said previously, it does nothing correct?
2. Put your fingers behind the door handle but not pulling it. Does it unlock the door if it was previously locked?
Repeat for each door handle.
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
With the key in your pocket, what happens when you:
1. touch the little square on any of the door handles? Does it lock the car (if unlock) or re-locked if previously locked? You said previously, it does nothing correct?
2. Put your fingers behind the door handle but not pulling it. Does it unlock the door if it was previously locked?
Repeat for each door handle.
1. touch the little square on any of the door handles? Does it lock the car (if unlock) or re-locked if previously locked? You said previously, it does nothing correct?
2. Put your fingers behind the door handle but not pulling it. Does it unlock the door if it was previously locked?
Repeat for each door handle.
I did discover a strange issue yesterday while testing out all the door handles. The right passenger rear door opens when I have the vehicle locked, which then sets off the alarm. I guess I have a bigger problem than the Keyless Go not working now.
Senior Member
Joined: Aug 2016
Posts: 262
Likes: 30
2014 GL450
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
So, I took it to the indy shop. They were very professional and ran their diagnostic equipment on the vehicle. Cost about $110 for the diagnostic service. The shop uses the MB-Xentry system, so they cannot reprogram any modules, including the Keyless Go (N69/5) module. Three issues popped up: one was the SAM module (N10) had a previous fault stored which showed as a black lower case "f", the KG module (N69/5) had a major fault shown as a red exclamation mark, and the other was the HBF rear control panel (N72/2) which also showed a fault with a red exclamation mark. Lastly, they heard a rattle from the engine during startup that lasted about 2 seconds, and realized the timing chain tensioners are failing. So, thank GOD I purchased the extended warranty! I'll be taking the vehicle into the local Merc dealership in about two weeks to have them replace and reprogram both modules, then possibly replace the timing chain tensioners and look for any other issues. If I'm only out the $100 deductible for the warranty, then I'm going to have dodged a "bullet" here with this used car purchase.
Last edited by NolaGL550; Aug 1, 2017 at 09:49 PM. Reason: incorrect module names listed
Senior Member
Joined: Sep 2013
Posts: 366
Likes: 53
From: Bandon, Or.
2013 E550 Sedan
So, I took it to the indy shop. They were very professional and ran their diagnostic equipment on the vehicle. Cost about $110 for the diagnostic service. Two issues popped up: one was the SAM module and the other was the RAF module that mounts to the top of the rear of vehicle. Lastly, they heard a rattle from the engine during startup that lasted about 2 seconds, and realized the timing chain tensioners are failing. So, thank GOD I purchased the extended warranty. I'll be taking the vehicle into the local Merc dealership in about a week to have them replace and reprogram both modules (must use SDS to reprogram), then possibly replace the timing chain tensioners and look for any other issues. If I could punch both the guy I bought the car from and the inspector I paid to do his best to find any problems, then I might feel better about this vehicle purchase.
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Thanks for the info! I'll let the M-B service advisor know about that service bulletin when I take the vehicle in next week. Was the repair a reprogram or a mechanical fix on your E550 for the rattling at startup?
Senior Member
Joined: Sep 2013
Posts: 366
Likes: 53
From: Bandon, Or.
2013 E550 Sedan
Depending on the Engine # the secondary timing chain tensioners were replaced, and on mine check valves for the tensioners were replaced also. The repair ended up taking 3 1/2 weeks, when upon completion, they found a leaking turbo coolant line, requiring more parts.
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
Depending on the Engine # the secondary timing chain tensioners were replaced, and on mine check valves for the tensioners were replaced also. The repair ended up taking 3 1/2 weeks, when upon completion, they found a leaking turbo coolant line, requiring more parts.
Thread Starter
Member
Joined: Jul 2017
Posts: 78
Likes: 15
From: New Orleans, LA
2013 GL550 and 2015 GL63 AMG
So, I took it to the indy shop. They were very professional and ran their diagnostic equipment on the vehicle. Cost about $110 for the diagnostic service. The shop uses the MB-Xentry system, so they cannot reprogram any modules, including the Keyless Go (N69/5) module. Three issues popped up: one was the SAM module (N10) had a previous fault stored which showed as a black lower case "f", the KG module (N69/5) had a major fault shown as a red exclamation mark, and the other was the HBF rear control panel (N72/2) which also showed a fault with a red exclamation mark. Lastly, they heard a rattle from the engine during startup that lasted about 2 seconds, and realized the timing chain tensioners are failing. So, thank GOD I purchased the extended warranty! I'll be taking the vehicle into the local Merc dealership in about two weeks to have them replace and reprogram both modules, then possibly replace the timing chain tensioners and look for any other issues. If I'm only out the $100 deductible for the warranty, then I'm going to have dodged a "bullet" here with this used car purchase.
