2018 GLC300 Battery Registration?
Thread Starter
Member
Joined: Feb 2009
Posts: 103
Likes: 28
From: Hollywood, FL
2017 SL450 2022 GLC300
2018 GLC300 Battery Registration?
I'm thinking of changing the starter battery (main battery) in my 2018 GLC300. I was considering an Optima or Diehard. Does anyone know if the battery needs to be coded or registered to the SAM or OBC? I see conflicting information about this on the internet. Any help would be most appreciated..... Thanks in advance
Member
Joined: Mar 2007
Posts: 157
Likes: 36
From: Suffern, NY
2020 GLC300 & 2009 SL550 (previously had 1999 CLK / 2006 E500 / 2011 GL450)
<Said jokingly, as a former BMW driver myself> "This is what happens when a former BMW owner finds themselves driving a Mercedes."
Kidding aside, I don't recall any type of programming for a Mercedes battery being necessary -- just replace with comparable battery, using all of the proper safety protocols and leave the registration to the blue/white team drivers...
That said, my experience with Mercedes is that most have too little space under the hood for my hands, so wear gloves to save yourself from scrapes, and most importantly, have a cold one nearby to open up AFTER the job is done.
Kidding aside, I don't recall any type of programming for a Mercedes battery being necessary -- just replace with comparable battery, using all of the proper safety protocols and leave the registration to the blue/white team drivers...
That said, my experience with Mercedes is that most have too little space under the hood for my hands, so wear gloves to save yourself from scrapes, and most importantly, have a cold one nearby to open up AFTER the job is done.
Thread Starter
Member
Joined: Feb 2009
Posts: 103
Likes: 28
From: Hollywood, FL
2017 SL450 2022 GLC300
Follow up: Battery replaced with an Optima yellow top. No issues. No programing needed. I didn't even use an alternative power supply to make sure I don't lose any memory settings. I just pulled and replaced the battery. Everything works fine and the memory settings all retained....
Thread Starter
Member
Joined: Feb 2009
Posts: 103
Likes: 28
From: Hollywood, FL
2017 SL450 2022 GLC300
It's my wife's car and she kept getting the stop vehicle, leave engine running with the battery icon coming up on the DIC. Despite charging the battery twice and the first time for 24 hours and the second time for 48 hours, the warning came back the following day. I took the vehicle to Advanced Auto and they performed a battery diagnostic on it and they recommended replacing it. So I did. The vehicle is an early 2018 and has 42K miles and batteries usually don't last longer than 3 years in South Florida climate either.
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Member
Joined: Mar 2007
Posts: 157
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From: Suffern, NY
2020 GLC300 & 2009 SL550 (previously had 1999 CLK / 2006 E500 / 2011 GL450)
Not trying to second guess you, but why not replace with OEM battery under warranty? Or are you beyond 48 months or did you simply have a preference for the Optima?
Thread Starter
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Joined: Feb 2009
Posts: 103
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From: Hollywood, FL
2017 SL450 2022 GLC300
Warranty expired and this is a very good battery and cheaper than OEM. Saved 100s vs going thru dealer too. And I didn't have to spend all day at the dealer either
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Joined: Dec 2015
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2009 C300 4Matic, 2009 Boxster
Yes the battery needs to be registered/reset. There is a charging counter that will continue to run if not reset. Apparently the system increases the charge for older batteries potentially overcharging newer batteries. I just topped off my 2016 GLC300 battery with a maintainer since I got the start/run engine low battery warning. Did the same thing last year. Contribute this to little or no driving with COVID. The Foxwell NT530 for Mercedes supposedly will register/reset a new battery. They are $169 on Amazon. Local independent shop wants $125, an hour, to code a battery. Should take 15-20 minutes at most.
Thread Starter
Member
Joined: Feb 2009
Posts: 103
Likes: 28
From: Hollywood, FL
2017 SL450 2022 GLC300
I had the new battery in my wife's vehicle for a few weeks now and I don't see any problems with it... I'm surprised that there isn't very much information pertaining to this on the internet or much feedback on this forum about this either. Thank you for your reply. I am going to look into purchasing this OBD Diagnostic Scanner. It's probably good to have anyway.....
Last edited by spinalator; Feb 3, 2021 at 09:38 AM.
Junior Member
Joined: Jan 2020
Posts: 51
Likes: 16
From: North Carolina
2017 GLC300, 2020 E450 Wagon
Yes the battery needs to be registered/reset. There is a charging counter that will continue to run if not reset. Apparently the system increases the charge for older batteries potentially overcharging newer batteries. I just topped off my 2016 GLC300 battery with a maintainer since I got the start/run engine low battery warning. Did the same thing last year. Contribute this to little or no driving with COVID. The Foxwell NT530 for Mercedes supposedly will register/reset a new battery. They are $169 on Amazon. Local independent shop wants $125, an hour, to code a battery. Should take 15-20 minutes at most.
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Joined: May 2016
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BMW 2011 535i + MB 2016 GLC300 + 2020 BMW 330i
1st. Check the factory warranty. If it's not cover by warranty. It's will costs $1,000+ to replace battery in the dealer.
I just replaced Optima yellow top DH6 CCA 800A in the Advance Auto Parts to my 2016 GLC300, they use backup battery to plug in the ODB port to keep memory, battery $315 and received 20% off only $250. It took only 10 minutes to replace it very easy. Labor is free no charge.
BTW The Auto Start/Stop was not working after 2nd years I bought the GLC and went back to dealer many times and a lot of dealer excuses
and never fixed and I just leave the problem there till last week I replaced the battery and Auto Start/Stop back to normal. The Mercedes OEM battery quality is very bad, I have 3 friend bought GLC after me, 2 2017 and 1 2018 all 3 got the battery light on this winter. Very bad quality never buy OEM Mercedes Battery. At least Optima battery comes with 3 years warranty.
Optima Yellow Top Deep Cycle Battery, Group Size H6, 800 CCA, 925 CA, 140 RC Link
I just replaced Optima yellow top DH6 CCA 800A in the Advance Auto Parts to my 2016 GLC300, they use backup battery to plug in the ODB port to keep memory, battery $315 and received 20% off only $250. It took only 10 minutes to replace it very easy. Labor is free no charge.
BTW The Auto Start/Stop was not working after 2nd years I bought the GLC and went back to dealer many times and a lot of dealer excuses
and never fixed and I just leave the problem there till last week I replaced the battery and Auto Start/Stop back to normal. The Mercedes OEM battery quality is very bad, I have 3 friend bought GLC after me, 2 2017 and 1 2018 all 3 got the battery light on this winter. Very bad quality never buy OEM Mercedes Battery. At least Optima battery comes with 3 years warranty.Optima Yellow Top Deep Cycle Battery, Group Size H6, 800 CCA, 925 CA, 140 RC Link
MBWorld Fanatic!
Joined: Apr 2016
Posts: 1,124
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From: NW
2018 GLC 4MATIC
Originally Posted by BmwGLC300
1st. Check the factory warranty. If it's not cover by warranty. It's will costs $1,000+ to replace battery in the dealer.
I just replaced Optima yellow top DH6 CCA 800A in the Advance Auto Parts to my 2016 GLC300, they use backup battery to plug in the ODB port to keep memory, battery $315 and received 20% off only $250. It took only 10 minutes to replace it very easy. Labor is free no charge.
BTW The Auto Start/Stop was not working after 2nd years I bought the GLC and went back to dealer many times and a lot of dealer excuses and never fixed and I just leave the problem there till last week I replaced the battery and Auto Start/Stop back to normal. The Mercedes OEM battery quality is very bad, I have 3 friend bought GLC after me, 2 2017 and 1 2018 all 3 got the battery light on this winter. Very bad quality never buy OEM Mercedes Battery. At least Optima battery comes with 3 years warranty.
Optima Yellow Top Deep Cycle Battery, Group Size H6, 800 CCA, 925 CA, 140 RC Link
I just replaced Optima yellow top DH6 CCA 800A in the Advance Auto Parts to my 2016 GLC300, they use backup battery to plug in the ODB port to keep memory, battery $315 and received 20% off only $250. It took only 10 minutes to replace it very easy. Labor is free no charge.
BTW The Auto Start/Stop was not working after 2nd years I bought the GLC and went back to dealer many times and a lot of dealer excuses
and never fixed and I just leave the problem there till last week I replaced the battery and Auto Start/Stop back to normal. The Mercedes OEM battery quality is very bad, I have 3 friend bought GLC after me, 2 2017 and 1 2018 all 3 got the battery light on this winter. Very bad quality never buy OEM Mercedes Battery. At least Optima battery comes with 3 years warranty.Optima Yellow Top Deep Cycle Battery, Group Size H6, 800 CCA, 925 CA, 140 RC Link
Cost was 450$ total.
GLC battery right up from with easy access, cost should be the same or less, as less labor and smaller battery.
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From: Miami, FL
2003 CL 600
The car does have an adaptive charging system, that puts less and less stress on the battery as it ages, by not charging it up quite so full. So if you replace the battery and don't run the reset process, it will continue to charge it at the decaying rate, leading to less life out of the replacement battery also.
How is your 2018 out of warranty already?
How is your 2018 out of warranty already?
Junior Member
Joined: Jan 2020
Posts: 51
Likes: 16
From: North Carolina
2017 GLC300, 2020 E450 Wagon
The car does have an adaptive charging system, that puts less and less stress on the battery as it ages, by not charging it up quite so full. So if you replace the battery and don't run the reset process, it will continue to charge it at the decaying rate, leading to less life out of the replacement battery also.
How is your 2018 out of warranty already?
How is your 2018 out of warranty already?
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Joined: Sep 2018
Posts: 33
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From: South Florida
GLC300
Senior Member
Joined: Jan 2019
Posts: 497
Likes: 196
From: Palm Beach, Fl
2016 S550 sport, 2018 GLC300, M3, Zo7, 2021 Sierra Denali
<Said jokingly, as a former BMW driver myself> "This is what happens when a former BMW owner finds themselves driving a Mercedes."
Kidding aside, I don't recall any type of programming for a Mercedes battery being necessary -- just replace with comparable battery, using all of the proper safety protocols and leave the registration to the blue/white team drivers...
That said, my experience with Mercedes is that most have too little space under the hood for my hands, so wear gloves to save yourself from scrapes, and most importantly, have a cold one nearby to open up AFTER the job is done.
Kidding aside, I don't recall any type of programming for a Mercedes battery being necessary -- just replace with comparable battery, using all of the proper safety protocols and leave the registration to the blue/white team drivers...
That said, my experience with Mercedes is that most have too little space under the hood for my hands, so wear gloves to save yourself from scrapes, and most importantly, have a cold one nearby to open up AFTER the job is done.
Newbie
Joined: May 2021
Posts: 3
Likes: 0
2017 Mercedes GLC300
Conflicting answers
Just replaced my batter in a 2017 GLC300 and looking into this registration due to the charging of the old battery and it shortening the life of the new battery.. Some say it’s not necessary and others say it is, any chance for an update and some clarification?
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Joined: Apr 2019
Posts: 11,921
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
MBenz has no formal battery registration like BMW do.
The ECU software tries to learn your MAIN battery to charge it well... just like ECU does for engine and TCM for gearbox.
Energy Mgt is done by sensors and computers hosted throughout the car from from ECU to Rear-SAM.
The one thing you can do is unplug the sensor control wire from the Battery (-) post. It will cause the engine computer to relearn its battery condition with more charging efforts in the 14.x ballpark instead of 12.6v float voltage. You can do that at anytime with both [Engine + KEY]= OFF, old or new battery.
Benz modern multi-stage dual battery charging is an amazing source of repeat service. Every Benz driver is bound to learn about it one way or another. The best thing you can do for your batteries is to float them with a CTEK or equivalent as often as practical... like once or twice a month. This easily helps lower 80Amp charge currents that end up damaging alternator, batteries, PreFuse and both SAM's... none of which come cheap with diagnostic fees: $2k.
This version is my no-brainer DIY to address this sticky mess.
The ECU software tries to learn your MAIN battery to charge it well... just like ECU does for engine and TCM for gearbox.
Energy Mgt is done by sensors and computers hosted throughout the car from from ECU to Rear-SAM.
The one thing you can do is unplug the sensor control wire from the Battery (-) post. It will cause the engine computer to relearn its battery condition with more charging efforts in the 14.x ballpark instead of 12.6v float voltage. You can do that at anytime with both [Engine + KEY]= OFF, old or new battery.
Benz modern multi-stage dual battery charging is an amazing source of repeat service. Every Benz driver is bound to learn about it one way or another. The best thing you can do for your batteries is to float them with a CTEK or equivalent as often as practical... like once or twice a month. This easily helps lower 80Amp charge currents that end up damaging alternator, batteries, PreFuse and both SAM's... none of which come cheap with diagnostic fees: $2k.
This version is my no-brainer DIY to address this sticky mess.
Junior Member
Joined: Jan 2020
Posts: 51
Likes: 16
From: North Carolina
2017 GLC300, 2020 E450 Wagon
MBenz has no formal battery registration like BMW do.
The ECU software tries to learn your MAIN battery to charge it well... just like ECU does for engine and TCM for gearbox.
Energy Mgt is done by sensors and computers hosted throughout the car from from ECU to Rear-SAM.
The one thing you can do is unplug the sensor control wire from the Battery (-) post. It will cause the engine computer to relearn its battery condition with more charging efforts in the 14.x ballpark instead of 12.6v float voltage. You can do that at anytime with both [Engine + KEY]= OFF, old or new battery.
Benz modern multi-stage dual battery charging is an amazing source of repeat service. Every Benz driver is bound to learn about it one way or another. The best thing you can do for your batteries is to float them with a CTEK or equivalent as often as practical... like once or twice a month. This easily helps lower 80Amp charge currents that end up damaging alternator, batteries, PreFuse and both SAM's... none of which come cheap with diagnostic fees: $2k.
This version is my no-brainer DIY to address this sticky mess.
The ECU software tries to learn your MAIN battery to charge it well... just like ECU does for engine and TCM for gearbox.
Energy Mgt is done by sensors and computers hosted throughout the car from from ECU to Rear-SAM.
The one thing you can do is unplug the sensor control wire from the Battery (-) post. It will cause the engine computer to relearn its battery condition with more charging efforts in the 14.x ballpark instead of 12.6v float voltage. You can do that at anytime with both [Engine + KEY]= OFF, old or new battery.
Benz modern multi-stage dual battery charging is an amazing source of repeat service. Every Benz driver is bound to learn about it one way or another. The best thing you can do for your batteries is to float them with a CTEK or equivalent as often as practical... like once or twice a month. This easily helps lower 80Amp charge currents that end up damaging alternator, batteries, PreFuse and both SAM's... none of which come cheap with diagnostic fees: $2k.
This version is my no-brainer DIY to address this sticky mess.
Reading them together, I think registration *is* required - unless someone can point to specific *documents* stating otherwise. Everything else is just hearsay and opinions.
Anybody know of any DYI-level OBDII device capable of updating SAM? That would be very helpful for this community to know.
