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C320 Stft Problem

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Old Dec 23, 2023 | 01:52 PM
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w203 C320
C320 Stft Problem / solved
Hi guys, I have a problem.

my car is W203 320. Stft is up to %25 when I release gas pedal.


Resolve:
I saw the vacuum inlet open at the back of the intake manifold. In my research; I found that this vacuum port needed to be closed.
Last edited by BlueLive; Dec 27, 2023 at 03:14 PM.
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Old Dec 23, 2023 | 09:03 PM
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Might be normal. Any idea what the "normal" range would be for that engine? Does the car throw a CEL?
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Old Dec 24, 2023 | 07:49 AM
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w203 C320
Originally Posted by slammer111
Might be normal. Any idea what the "normal" range would be for that engine? Does the car throw a CEL?

I don't think it's normal. because in all documents it is says that the normal value is close to 0.

No CEL are on.
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