A GTR has landed in my garage!
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MBWorld God!
Joined: Dec 2019
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In case the other forum member still need the information, you can find it right below "Made in Germany" > Build > and format is month/year for example 09/17
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Having your trickle charger plugged in for as long as possible when car is Parked will 'condition' the battery to optimal capacitance/function, and more importantly, will extend its life significantly:
https://mbworld.org/forums/coupe-roa...ml#post9237653
@MBNRG I didn't notice the plaque you're talking about, but I'll take a picture and post it here
(PS - The number "589" to the left of Month/Date in photo below corresponds to the MB Paint Code for that specific finish, so your corresponding paint code will be helpful to know if/when you need MB touch up paint - recommend the official MB OEM paint pen, instead of the plethora of aftermarket provider products)
Last edited by MBNRG; May 15, 2026 at 01:51 PM.
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Please read this post below by our Engineering colleague. These vehicle Li batteries have somewhat different chemical composition, and electrical properties.
Having your trickle charger plugged in for as long as possible when car is Parked will 'condition' the battery to optimal capacitance/function, and more importantly, will extend its life significantly:
https://mbworld.org/forums/coupe-roa...ml#post9237653
This is the referenced plaque as seen below, at driver's side door sill, with Month/Date circled in Yellow. Curious what is your Month/Date?
https://cimg3.ibsrv.net/gimg/www.mbw...7fbaad6c74.jpg
Having your trickle charger plugged in for as long as possible when car is Parked will 'condition' the battery to optimal capacitance/function, and more importantly, will extend its life significantly:
https://mbworld.org/forums/coupe-roa...ml#post9237653
This is the referenced plaque as seen below, at driver's side door sill, with Month/Date circled in Yellow. Curious what is your Month/Date?
https://cimg3.ibsrv.net/gimg/www.mbw...7fbaad6c74.jpg
Thread Starter
Member
Joined: Feb 2025
Posts: 167
Likes: 34
From: Rome, Italy
AMG GTR 2021 (Euro version)
Please read this post below by our Engineering colleague. These vehicle Li batteries have somewhat different chemical composition, and electrical properties.
Having your trickle charger plugged in for as long as possible when car is Parked will 'condition' the battery to optimal capacitance/function, and more importantly, will extend its life significantly:
https://mbworld.org/forums/coupe-roa...ml#post9237653
Having your trickle charger plugged in for as long as possible when car is Parked will 'condition' the battery to optimal capacitance/function, and more importantly, will extend its life significantly:
https://mbworld.org/forums/coupe-roa...ml#post9237653
This is the referenced plaque as seen below, at driver's side door sill, with Month/Date circled in Yellow. Curious what is your Month/Date?
(PS - The number "589" to the left of Month/Date in photo below corresponds to the MB Paint Code for that specific finish, so your corresponding paint code will be helpful to know if/when you need MB touch up paint - recommend the official MB OEM paint pen, instead of the plethora of aftermarket provider products)
(PS - The number "589" to the left of Month/Date in photo below corresponds to the MB Paint Code for that specific finish, so your corresponding paint code will be helpful to know if/when you need MB touch up paint - recommend the official MB OEM paint pen, instead of the plethora of aftermarket provider products)
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From: San Francisco Bay Area
2019 C63CS
MBWorld God!
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As for the sticker and the manufacture date, the best way is probably decode the VIN on a site like lastvin or something and read the date there, if still curious.
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*
FWIW, my GTR is always put on the OEM charger when in the garage and it's been sitting for about a week that way, right now. I just went out and checked the battery voltage and it's sitting at 13.2 VDC which is generally considered to be a 70-80% charge for a Li battery, probably closer to the 80% since some electronics would have been activated by unlocking the rear hatch (i.e., so there was some electrical load).
When I checked the battery voltage above, I also decided to press/hold the button to initiate a reconditioning (I think it was Stenzel who suggested this should be done intermittently).
Today I rechecked the voltage (still on OEM charger) and found the voltage was at 13.4 VDC under the same conditions (i.e., hatch had been opened so there was some load from electronics). That reading tends to correlate nicely with the previously mentioned information provided by G.P in this posting:
https://mbworld.org/forums/coupe-roa...ml#post9237653
The "moral of the story" seems to be that Mercedes-AMG recognizes that many of these cars will not be daily deivers and will sit for extended periods and they actually do know what they're doing with the OEM (CTEK) maintenance charger provided with the GT models. $;-))
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An Update:
When I checked the battery voltage above, I also decided to press/hold the button to initiate a reconditioning (I think it was Stenzel who suggested this should be done intermittently).
Today I rechecked the voltage (still on OEM charger) and found the voltage was at 13.4 VDC under the same conditions (i.e., hatch had been opened so there was some load from electronics). That reading tends to correlate nicely with the previously mentioned information provided by G.P in this posting:
https://mbworld.org/forums/coupe-roa...ml#post9237653
The "moral of the story" seems to be that Mercedes-AMG recognizes that many of these cars will not be daily deivers and will sit for extended periods and they actually do know what they're doing with the OEM (CTEK) maintenance charger provided with the GT models. $;-))
When I checked the battery voltage above, I also decided to press/hold the button to initiate a reconditioning (I think it was Stenzel who suggested this should be done intermittently).
Today I rechecked the voltage (still on OEM charger) and found the voltage was at 13.4 VDC under the same conditions (i.e., hatch had been opened so there was some load from electronics). That reading tends to correlate nicely with the previously mentioned information provided by G.P in this posting:
https://mbworld.org/forums/coupe-roa...ml#post9237653
The "moral of the story" seems to be that Mercedes-AMG recognizes that many of these cars will not be daily deivers and will sit for extended periods and they actually do know what they're doing with the OEM (CTEK) maintenance charger provided with the GT models. $;-))
Junior Member
Joined: May 2021
Posts: 58
Likes: 34
2020 AMG GT R
An Update:
When I checked the battery voltage above, I also decided to press/hold the button to initiate a reconditioning (I think it was Stenzel who suggested this should be done intermittently).
Today I rechecked the voltage (still on OEM charger) and found the voltage was at 13.4 VDC under the same conditions (i.e., hatch had been opened so there was some load from electronics). That reading tends to correlate nicely with the previously mentioned information provided by G.P in this posting:
https://mbworld.org/forums/coupe-roa...ml#post9237653
The "moral of the story" seems to be that Mercedes-AMG recognizes that many of these cars will not be daily deivers and will sit for extended periods and they actually do know what they're doing with the OEM (CTEK) maintenance charger provided with the GT models. $;-))
When I checked the battery voltage above, I also decided to press/hold the button to initiate a reconditioning (I think it was Stenzel who suggested this should be done intermittently).
Today I rechecked the voltage (still on OEM charger) and found the voltage was at 13.4 VDC under the same conditions (i.e., hatch had been opened so there was some load from electronics). That reading tends to correlate nicely with the previously mentioned information provided by G.P in this posting:
https://mbworld.org/forums/coupe-roa...ml#post9237653
The "moral of the story" seems to be that Mercedes-AMG recognizes that many of these cars will not be daily deivers and will sit for extended periods and they actually do know what they're doing with the OEM (CTEK) maintenance charger provided with the GT models. $;-))
Thread Starter
Member
Joined: Feb 2025
Posts: 167
Likes: 34
From: Rome, Italy
AMG GTR 2021 (Euro version)
My apologies—I had read your comment but then forgot to reply...
Of course, but since I’d just picked up the car, a bit of initial nervousness combined with a lack of familiarity with the vehicle held me back a little, so I never went over 150/155 mp/h...
Of course, but since I’d just picked up the car, a bit of initial nervousness combined with a lack of familiarity with the vehicle held me back a little, so I never went over 150/155 mp/h...
Thread Starter
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Joined: Feb 2025
Posts: 167
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From: Rome, Italy
AMG GTR 2021 (Euro version)
It doesn't seem to be working; when I turn off the ignition, the transmission automatically shifts to P (and when I turn it back on, the P light is on).
[/QUOTE=det000;9290399]edit
As for parking without the e-brake on, IIRC, you just need to stop, put gear selector in N, turn off ignition, and pull the (P) handle on the underside of the dash to the left of the steering wheel. I've done it when I'm at the track.[/QUOTE]
[/QUOTE=det000;9290399]edit
As for parking without the e-brake on, IIRC, you just need to stop, put gear selector in N, turn off ignition, and pull the (P) handle on the underside of the dash to the left of the steering wheel. I've done it when I'm at the track.[/QUOTE]
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2020 AMG GT R
There was a specific sequence. I think it was something like:
1. Stop the car
2. With the foot on brake, put it in neutral
3. Take foot off brake
4. Turn off car (press Start/Stop)
5. Release the parking brake
And I think you have to leave the key fob inside the car too. You can try pushing the car to see if it's in neutral.
1. Stop the car
2. With the foot on brake, put it in neutral
3. Take foot off brake
4. Turn off car (press Start/Stop)
5. Release the parking brake
And I think you have to leave the key fob inside the car too. You can try pushing the car to see if it's in neutral.
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I don't know how to explain it but basically you have your foot off the brake, pull and keep on pulling the parking brake before turning off engine, it works on various MB models I am not certain about the AMG GT but should work, worth a shot.
Push hand brake button is engage and pull is disengage right then pull and keep pulling.
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Okay let's see if this helps: https://hips.hearstapps.com/hmg-prod...1635274313.jpg
The parking brake switch right below the light switch on the left, foot on the brake (I mentioned off brake in my previous post but I changed my mind and want to say keep foot on brake because the vehicle may or may not roll back due to an incline until it hits the parking pawl and for safety reasons), you use one hand to pull at the switch like you normally do to release the parking brake but instead of releasing after pulling once, keep on pulling and while pulling, press the ignition to turn off the engine, just remember to keep on pulling.
Once engine is off you can release and stop pulling, confirmed parking brake is off everything is good slowly ease off the brake and let the vehicle slowly roll back until the parking pawl completely stops the vehicle.
That similar feeling when you put an old vehicle in park on a hill and didn't engage the hand brake and let go off the brake and the vehicle rocks back then stops as the parking pawl will keep it in place.
What was the reason to park without the parking brake on again? I forgot if it was mentioned in the thread as I recommend keeping it on to prevent for any reason parking pawl gets disengaged and there is a second layer of protection.
Edit: see further post about brakes wet causing clunk.
The parking brake switch right below the light switch on the left, foot on the brake (I mentioned off brake in my previous post but I changed my mind and want to say keep foot on brake because the vehicle may or may not roll back due to an incline until it hits the parking pawl and for safety reasons), you use one hand to pull at the switch like you normally do to release the parking brake but instead of releasing after pulling once, keep on pulling and while pulling, press the ignition to turn off the engine, just remember to keep on pulling.
Once engine is off you can release and stop pulling, confirmed parking brake is off everything is good slowly ease off the brake and let the vehicle slowly roll back until the parking pawl completely stops the vehicle.
That similar feeling when you put an old vehicle in park on a hill and didn't engage the hand brake and let go off the brake and the vehicle rocks back then stops as the parking pawl will keep it in place.
What was the reason to park without the parking brake on again? I forgot if it was mentioned in the thread as I recommend keeping it on to prevent for any reason parking pawl gets disengaged and there is a second layer of protection.
Edit: see further post about brakes wet causing clunk.
Last edited by W205C43PFL; Today at 04:28 PM.
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If the reason to keep the parking brake off was because of the loud clunk or rust after parking with wet brakes, this recommendation by another forum member might help: https://mbworld.org/forums/s-class-w...ml#post9291264
Another option that was also recommended by another forum member was buy those detailing fan blowers that can be used to blow dry the wheels and rotors and/or um... leaf blower?
Another option that was also recommended by another forum member was buy those detailing fan blowers that can be used to blow dry the wheels and rotors and/or um... leaf blower?
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From: San Francisco Bay Area
2019 C63CS
FYI...OP didn't just wanna park it with the parking brake off, they wanted to park it with the transmission staying in neutral. The above suggestion doesn't do that, and as far as I know you can't turn off the engine with the the transmission staying in neutral. It automatically goes to P, nor can you put it in neutral with the engine off. You may be able to put it in neutral with just the ignition on, but I haven't tried that. If I remember correctly, garage space is limited and they wanted to be able to push the car around without starting the engine, but other than putting it on dollies, that's not possible with these cars as far as I know.
Last edited by superswiss; Today at 04:42 PM.
MBWorld God!
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FYI...OP didn't just wanna park it with the parking brake off, they wanted to park it with the transmission staying in neutral. The above suggestion doesn't do that, and as far as I know you can't turn off the engine with the the transmission staying in neutral. It automatically goes to P, nor can you put it in neutral with the engine off. You may be able to put it in neutral with just the ignition on, but I haven't tried that. If I remember correctly, garage space is limited and they wanted to be able to push the car around without starting the engine, but other than putting it on dollies, that's not possible with these cars as far as I know.
