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2021 G63 Transmission leak

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Old May 29, 2023 | 05:12 PM
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2021 G63 Transmission leak

Im planning to buy a 2021 g63 that i found, upon inspection we found a transmission leak, very minor they said. Seals need replacing, the car drives like it was new, it has 41,000kms on it. the warranty is up to 150,000km. Any thing i should be concerned by? should i buy the car?
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Old May 29, 2023 | 05:13 PM
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The car was perfect inside and out, very clean, beige interior with the carbon fiber trim. Fully Fully loaded, should i be concerned about the leak? is it common on G63's?
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Old May 29, 2023 | 06:01 PM
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Transmission leak for sure or rear main seal leak? Will this car still be under factory warranty? If it's the rear main seal then the oil separators also need to be replaced.



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Old May 29, 2023 | 06:04 PM
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Originally Posted by PeterUbers
Transmission leak for sure or rear main seal leak? Will this car still be under factory warranty? If it's the rear main seal then the oil separators also need to be replaced.

I’m not sure, the inspectors said transmission, but it seemed to be on the back side of the transmission if that makes sense, a bad seal is what they said. and Yes the car is under warranty till mid 2026, or 150,000kms, whatever comes first.
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Old May 29, 2023 | 06:05 PM
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should i go on with the purchase, i managed to get a really good price (I’m based in the UAE)
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Old May 29, 2023 | 06:15 PM
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idk im just worried about future issues, if anyone has any insight on the leaks please let me know. Thanks
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Old May 29, 2023 | 06:24 PM
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Can someone else inspect the car - a third party? Before you sign the dotted line?

if it's under warranty and they can demonstrate that it's fixed and it's a benz dealer I wouldn't be worried about it. Any future issues are relatively theoretic and will be fixed under warranty
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Old May 29, 2023 | 06:27 PM
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Thank you for the response, yeah the car was inspected by a very reliable 3rd party inspector that i chose, they pointed out the leak, the seller will send it to the dealer for the repairs once i place a down payment on the car. The car was in immaculent condition, the leak is the only thing driving me nuts haha
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Old May 29, 2023 | 06:30 PM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Originally Posted by 2001g63
Thank you for the response, yeah the car was inspected by a very reliable 3rd party inspector that i chose, they pointed out the leak, the seller will send it to the dealer for the repairs once i place a down payment on the car. The car was in immaculent condition, the leak is the only thing driving me nuts haha
that doesn't seem right. You're locked into the full cost of the car before it's demonstrated as fixed.

you should do money in escrow until it's fixed, or give them $500 to lock the deal that is non refundable to you to keep them honest and interested.

what amount of down payment and what if the problem is bigger than projected when they start the repair? Will you get your money back?
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Old May 29, 2023 | 06:32 PM
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the seller wants around 2000 dollars, if there was a bigger problem then yes it would be refunded.
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Old May 29, 2023 | 06:33 PM
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from what i read in the forums it could be that seal at the bottom of the transmission,
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Old May 29, 2023 | 06:34 PM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Clarify with them if it's the rear main seal or the rear of the transmission

https://mbworld.org/forums/w213-amg/...r-failure.html
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Old May 29, 2023 | 06:40 PM
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Old May 29, 2023 | 06:42 PM
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thats a picture i found on youtube, but that was the exact location it was wet. from what i understand it could have been repaired a while back, but the oil residue is still there,

Is that a common leak for G63's?
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Old May 29, 2023 | 06:55 PM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Originally Posted by 2001g63
thats a picture i found on youtube, but that was the exact location it was wet. from what i understand it could have been repaired a while back, but the oil residue is still there,

Is that a common leak for G63's?
its become a common leak for m177/8 engines apparently between 2018 and 2020, yours would be the first 2021 that I read about but your car could have been built in 2020.


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Old May 29, 2023 | 06:56 PM
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mine was built june 2021, but since its a common issue then i shouldnt be worried right? easy fix under warranty i presume
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Old May 29, 2023 | 06:57 PM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Originally Posted by 2001g63
that looks like the rear main seal. If it is then you need to also consider replacing oil separators; it's a $8000 job in total per the dealer as typically documented by people on this forum (see thread)

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Old May 29, 2023 | 06:58 PM
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thank you so much for the info, ill let them send it to the dealer and have everything checked out.
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