C450/C43 AMG
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Old Dec 14, 2023 | 05:27 PM
  #1  
Armande Naseem's Avatar
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2016 C450 AMG, 2003 CL 55 AMG
Blown engine

Well guys I think this is it. Blown engine on my C450 with 71k miles. Only had some light modifications (downpipes, methanol injection, tune) so it’s definitely not going to be covered. I’m going to try because I really don’t think it should happen at this low mileage. Quoted 31k USD for a new engine.
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Old Dec 14, 2023 | 09:51 PM
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Hope it doesn’t go missing or catch fire 🤦🏻‍♂️
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Old Dec 14, 2023 | 10:29 PM
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$31,000 USD for a new engine? Haha, the whole car is not worth that much. I have seen long blocks for about $7k to $9k, which is not terrible if you can do the labor.
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Old Dec 14, 2023 | 10:39 PM
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2022 amg c43 coupe
Take the mods off

I would take the mods off put the stock parts on and see if you can get it covered.
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Old Dec 14, 2023 | 10:46 PM
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Depending on tune, even if removed the dealer will still be able to see it was there
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Old Dec 14, 2023 | 11:04 PM
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Originally Posted by Houstonchiro
I would take the mods off put the stock parts on and see if you can get it covered.
Regardless of mods, query what is to be covered on a 2016 vehicle with over 70k miles.
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Old Dec 15, 2023 | 10:43 AM
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Car-part.com

Used engine with warranty. Figure 6 grand and a couple grand in labor.

And get rid of methanol injection. I've seen so many failures related to it.
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Old Dec 15, 2023 | 02:48 PM
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2019 C43 AMG
What happened to the engine? is it salvageable? Rod through the block?
Unfortunately on the M276 the connecting rods are usually the weak point when you tune these cars
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Old Jan 23, 2024 | 03:53 PM
  #9  
Armande Naseem's Avatar
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2016 C450 AMG, 2003 CL 55 AMG
Originally Posted by C43Jay
What happened to the engine? is it salvageable? Rod through the block?
Unfortunately on the M276 the connecting rods are usually the weak point when you tune these cars
Yes, rod through the block.
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Old Jan 23, 2024 | 04:02 PM
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Armande Naseem's Avatar
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2016 C450 AMG, 2003 CL 55 AMG
Originally Posted by bhvrdr
Car-part.com

Used engine with warranty. Figure 6 grand and a couple grand in labor.

And get rid of methanol injection. I've seen so many failures related to it.
Wasn't familiar with that site, found a long block that looks promising. Many thanks! Just out of curiosity, what about the WMI might be causing these failures?
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Old Jan 26, 2024 | 05:37 AM
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Too many horror stories about tuned C43s with blown engines. Sorry 🙏 about your motor Armande Naseem
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Old Jan 30, 2024 | 03:42 PM
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What tuner did you use? I haven't seen many failures on my end
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Old Jan 30, 2024 | 08:10 PM
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2022 amg c43 coupe
Originally Posted by AXO893
Too many horror stories about tuned C43s with blown engines. Sorry 🙏 about your motor Armande Naseem
what have you seen. I have c43 with about 5k miles on it still under warranty. I am not going to get to aggressive just a jb4 with cold air no methanol injection or downpipes. Anything specific you've seen done that seems to cause failures ?
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