G Class (W465/W463A) W463 Produced 2019-2024: G550, G63 AMG W465 Produced 2025-

Replace Start/Stop Engine button G Wagon

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Old Jul 29, 2025 | 06:48 AM
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Question Replace Start/Stop Engine button G Wagon

Hello

I have a 2019 G63 and I'm wanting to swap the Start/Stop button because the text has faded. I have purchased the button switch and I thought the button itself would pry out but unfortunately it doesn't.

Does anyone know the best way to replace this button?

I've attached a photo of it. Thanks




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Old Jul 29, 2025 | 08:34 AM
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Very unusual defect -- any guess why this happened?

I haven't removed the start/stop button on my G, but I have pulled the headlight switch module. There are retaining clips that seem to be designed for one-time installation only. The start/stop button might need to be released from its backside, I'll see if there's anything relevant in the WIS/ASRA about it.
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Old Jul 29, 2025 | 08:56 AM
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This would happen to the start button on our prior Range Rovers. Usually was a combination of the wrong chemical in a cleaning product being used at some point, or something on fingertips.

I can’t say how to replace but I just took my 2022 G550 center console and middle stack apart to route a MagSafe phone charging cable. I watched this video which may shed light, as he removes the screen and dash (I didn’t need to go that far) to replace the differential locking switches. I’d probably ask dealer or a super knowledgeable car stereo install shop if not comfortable doing yourself.

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Old Jul 29, 2025 | 09:23 AM
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Originally Posted by streborx
Very unusual defect -- any guess why this happened?

I haven't removed the start/stop button on my G, but I have pulled the headlight switch module. There are retaining clips that seem to be designed for one-time installation only. The start/stop button might need to be released from its backside, I'll see if there's anything relevant in the WIS/ASRA about it.
I'm not entirely sure why it's happened, I've only recently got the car. I presume the previous owner left their finger on the button for longer than they should have? I had a quick look on the autotrader and it seems a few G wagons have this issue too. Totally depends. And ok thanks
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Old Jul 29, 2025 | 11:49 AM
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I found disassembly instructions in WIS, and the top level page is attached. The document referenced in step 1 (AR68.10-P-3430XG) references yet other instructions, and drills down about 5 levels requiring the entire console to be removed as the guy in the YT video demonstrates, and as is shown in the left-hand photo in the attached. Without this extent of disassembly, the trim strip could be damaged or possibly not clear the center console sufficiently for removal. This is an extraordinary amount of work just to compensate for a cosmetic flaw. I think I'd learn to live with the defect until some other problem warrants the effort.
Attached Files
File Type: pdf
StartStopSwitch.pdf (474.3 KB, 227 views)
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Old Jul 29, 2025 | 12:07 PM
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Hello

I spoke to an indie, they said they would charge me £120 to do it but they haven't done it before.

Thanks for checking. I've been doing some trawling on the forum too and found this:

https://mbworld.org/forums/g-class-w...ment-help.html

"This trim piece is secured down by the A/C vent so you will need a A/C vent removal tool such as the one listed below and start by removing the A/C vent in order to free it up and the rest will just pry off. The start button is attached to the back of this piece of trim and easy to replace once you pry it off."

Not entirely sure what he means, I'm in the UK so the start stop button is on the right side. Does he mean remove the AC vent to the left of the button? Not sure what he means by "the rest" will just pry off either. Be nice if he's still active on the forum because the post it from a couple years ago.
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Old Jul 29, 2025 | 12:19 PM
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Didn't notice you're in the UK. The attachment I posted above is for left-hand drive vehicles. Your trim piece is likely different and its removal could be simpler. Can you snap a photo?
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Old Jul 29, 2025 | 12:32 PM
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Originally Posted by streborx
Didn't notice you're in the UK. The attachment I posted above is for left-hand drive vehicles. Your trim piece is likely different and its removal could be simpler. Can you snap a photo?

I've attached a photo here
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Old Jul 29, 2025 | 12:57 PM
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I thought maybe the button was on the right side of the steering wheel, and that the trim strip might be shorter and simpler to remove. But your configuration is exactly a mirror image of the left-hand drive configuration here in NA (shown in the WIS document). The issue seems to be where the center console differential lock & air vents trim piece overlaps the start switch trim piece. You might be able to pop the start switch trim loose with the described tools, but it might hit the center console piece before the tabs clear their holes to allow its removal.
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Old Jul 29, 2025 | 01:39 PM
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For that amount of work I’d try to print a vinyl sticker and cover it up?
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Old Jul 30, 2025 | 01:51 AM
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An opaque sticker would eliminate the button's backlighting. I'd just leave it alone.
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Old Jul 30, 2025 | 02:50 AM
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Had the dealer replace that piece of trim in a past 2020 G63 due to a scratched one from factory. The piece of trim holding the start button is long and extends all the way to the passenger side door. It is held in place by the passenger vent. Start with the passenger side vent using a vent release tool then you will be able to pry off the entire piece of trim starting from the vent towards the start button. The start button will come out along with the pice of trim and is attached to the back of this piece of trim. The Mercedes dealer instructions involve removing the entire centre console in a 5 hr process but it was not necessary at all and entire process took 5-10 mins.

Last edited by haa; Jul 30, 2025 at 03:13 AM.
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Old Jul 30, 2025 | 04:55 AM
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My main concern is introducing rattles after reinstalling the trim pieces : (
Maybe the vinyl (semi-transparent) sticker will be a good solution as suggested.
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Old Jul 30, 2025 | 05:07 AM
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Originally Posted by W205C43PFL
My main concern is introducing rattles after reinstalling the trim pieces : (
Maybe the vinyl (semi-transparent) sticker will be a good solution as suggested.
no rattles, that piece of trim is held tight in place with multiple firm clips and sits on top of a soft leather surface so there is no metal to metal potential for rattle.

Last edited by haa; Jul 30, 2025 at 05:15 AM.
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Old Jul 30, 2025 | 05:32 AM
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Do you think it's possible remove the long silver trim by just using a pry tool, rather than having to remove the passenger vent?
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Old Jul 30, 2025 | 05:48 AM
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Originally Posted by haa
no rattles, that piece of trim is held tight in place with multiple firm clips and sits on top of a soft leather surface so there is no metal to metal potential for rattle.
That is good then.
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Old Jul 30, 2025 | 08:20 AM
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The WIS document in post #5 above shows where the tabs are located and the pry tools needed to release them. Somebody with time and an inquiring mind please get to work.
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Old Jul 30, 2025 | 03:51 PM
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It was so easy in the end! Took 5-10 mins, The silver top trim just needs to pop out, then push the old button out and replace.
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Old Jul 30, 2025 | 04:53 PM
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Hey! Glad it worked out for you! Sometimes MB's WIS makes things more difficult than they need to be.
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Old Jul 31, 2025 | 01:15 AM
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Originally Posted by la0121
It was so easy in the end! Took 5-10 mins, The silver top trim just needs to pop out, then push the old button out and replace.
Originally Posted by streborx
Hey! Glad it worked out for you! Sometimes MB's WIS makes things more difficult than they need to be.
nice good job OP!

Which is strange because every minute counts when the dealership claims warranty work from MB corporate, it cost MB corporate money.
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Old Jul 31, 2025 | 02:47 AM
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Originally Posted by la0121
It was so easy in the end! Took 5-10 mins, The silver top trim just needs to pop out, then push the old button out and replace.
Told you! The key is removing the vent with the special tool/hook!

Last edited by haa; Jul 31, 2025 at 04:44 AM.
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Old Jul 31, 2025 | 04:47 AM
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Originally Posted by la0121
Do you think it's possible remove the long silver trim by just using a pry tool, rather than having to remove the passenger vent?
No because you can easily bend/deform that piece of trim and you need adequate access to the back of it to be able to remove and clip the new start button in place so it is much safer to remove that vent that is solidly anchoring everything down.
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Old Aug 1, 2025 | 04:56 PM
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Can't wait to see your DIY photos!
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Old Aug 4, 2025 | 07:18 PM
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Why over think it?

used this on mine just bc wanted CF look


I just found this on AliExpress: $17.79 | Engine Start Stop Button Sticker For Mercedes Benz A B G CLA GLE GLS GLB Class AMG W177 W247 G463 C118 CLA35
https://a.aliexpress.com/_mqPzEK1




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Old Aug 8, 2025 | 01:14 PM
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Originally Posted by haa
No because you can easily bend/deform that piece of trim and you need adequate access to the back of it to be able to remove and clip the new start button in place so it is much safer to remove that vent that is solidly anchoring everything down.
I'm confused here. The WIS procedure has the entire trim strip being removed before removing the passenger vent, but comments in this thread describe the opposite sequence. Where inside the vent does the special hook tool grab? Does the entire vent assembly (including the open/close shutter) come out, or only the vent cover that rotates 90 degrees?
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