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Does a W205 AMG C43 have a MAF sensor? I can't see one on my intake system anywhere.

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Old Feb 12, 2025 | 06:22 AM
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Does a W205 AMG C43 have a MAF sensor? I can't see one on my intake system anywhere.

I'm wanting to know if the 2017 W205 AMG C43 has a MAF sensor. I can't see one anywhere in the intake system on mine. There is a MAP sensor in the intake manifold after the throttle body, and a turbo pressure sensor in the intercooler, but no MAF sensor that I can see.

If there is a MAF sensor and I just can't see it yet, where is it exactly in the intake system?

I want to know this because I want to spray CRC GDI IVD Intake Valve & Turbo Cleaner into the intake system and the easiest way to do that is to just take out the air filters and spray it into the intake system there, but the CRC product says to make sure to spray it into the intake system after any MAF sensor if there is one, as the product can damage a MAF sensor. If there is no MAF sensor I don't have to worry where I spray it into the intake system, but if there is a MAF sensor I have to be more careful where I spray it into the intake.

Thanks in advance.
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Old Feb 12, 2025 | 07:43 AM
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I'm pretty sure the M276.8xx engine does not use a MAF sensor. However, I am not certain. I'll check the EPC.
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Old Feb 12, 2025 | 08:54 AM
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Having checked both the WIS and EPC, it appears there is only a MAP (#45).

MAP, #45
MAP, #45
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Old Feb 12, 2025 | 10:27 AM
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There are two Map sensors in our engines, one in the intercooler and one in the intake like poined out by the previous post.

I would not spray any liquid before the intercooler, it will just puddle in the bottom.

You can find an intake pipe near the throttle butterfly for the breather and spray in there. That should be your best option.
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Old Feb 12, 2025 | 11:09 AM
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The other MAP sensor is shown in the top left of the picture as B28/6.


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Old Feb 12, 2025 | 11:21 AM
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Or #40 in this diagram. (Drives me nuts that the intercooler is listed with the radiator instead of the intake.)


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Old Feb 12, 2025 | 11:24 AM
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What is really interesting is that both MAP sensors use the same part number, A0091533328.
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Old Feb 12, 2025 | 03:00 PM
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Many thanks for the great replies Jetta and MJP! My question has been answered perfectly.
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