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400d EGR help !!

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Old Nov 21, 2024 | 12:51 PM
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Abbas ahmd cls's Avatar
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400d EGR help !!

Guys please see the picture below and let me know if anyone have done fix for it before or point me in the right direction I dont even know where it is located


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Old Nov 21, 2024 | 03:20 PM
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As my translator, the Faut Code is about cooler bypass switchover valve, and this is just a simple switch/flap, not the EGR.

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Old Nov 21, 2024 | 03:25 PM
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Originally Posted by trigital
As my translator, the Faut Code is about cooler bypass switchover valve, and this is just a simple switch/flap, not the EGR.
thank you so much. If possible can you please tell me where it might be located also if possible I can get the part number. I am planing to give the car to get engine mounts changes so I might just get this done same time
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Old Nov 21, 2024 | 03:42 PM
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Now I just realized that the Fault Code is electrical, so this Vacuum Cell is actuated via a hose by an electrical valve behind the soundproofing upstream Poly-V belt.



But, I would start from the vacuum cell to check if there is oil marks...as this engine has some very big troubles with the oil/vacuum tandem pump.

Or, my sincere advice for you is to use an official MB workshop as this need a lot of knowledge and sometimes all repairs can be free...
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Old Nov 21, 2024 | 03:56 PM
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Originally Posted by trigital
Now I just realized that the Fault Code is electrical, so this Vacuum Cell is actuated via a hose by an electrical valve behind the soundproofing upstream Poly-V belt.



But, I would start from the vacuum cell to check if there is oil marks...as this engine has some very big troubles with the oil/vacuum tandem pump.

Or, my sincere advice for you is to use an official MB workshop as this need a lot of knowledge and sometimes all repairs can be free...

The issue is the car is imported from Korea to uae and here i don't think they will accept anything however finding the right guy for this job in uae is also a challenge.

I dont feel any power loss or anything it's just there and 1 question come to my mind is that can this cause engine vibration at idle


And if i am not wrong to access this i have take out the engine or remove the complete frontend

Last edited by Abbas ahmd cls; Nov 21, 2024 at 03:59 PM.
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