C300 W204 2012 4Matic - RPM Fluctuating at Drive / Loss of power uphill
07-29-2022, 07:18 AM
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W204 C300 4MATIC 2012
C300 W204 2012 4Matic - RPM Fluctuating at Drive / Loss of power uphill
Hello Everyone,
I have an issue with my C300 4Matic which seems like just draining my money and refusing to get fixed.
Here are the details,
The car's RPM fluctuates by 200 to 300 while driving. Going uphill, car losses power and RPM goes crazy with car feels like out of breath.
I have changed ECU & Reprogrammed, Replaced Air Intake Manifold & Gasket, Fuel Pressure Sensors, Vacuum Sensors but all in vain.
Car still shows
1. P0453 Evaporative Emission System Pressure Sensor/Switch High
2. P0175 System too Rich Bank 2
3. P0712 System too Rich Bank 1 remains
RPM still fluctuates and car loses power uphill.
No TCU/TRANSMISSION CODES // NO IMPROVEMENTS BY CHANGING MAF TOO
Videos and PDF with repairs done is attached on google link below.
VIDEOS AND PDF
Solutions are welcome and highly appreciated as I am totally fed up with Mechanics here.
I have an issue with my C300 4Matic which seems like just draining my money and refusing to get fixed.
Here are the details,
The car's RPM fluctuates by 200 to 300 while driving. Going uphill, car losses power and RPM goes crazy with car feels like out of breath.
I have changed ECU & Reprogrammed, Replaced Air Intake Manifold & Gasket, Fuel Pressure Sensors, Vacuum Sensors but all in vain.
Car still shows
1. P0453 Evaporative Emission System Pressure Sensor/Switch High
2. P0175 System too Rich Bank 2
3. P0712 System too Rich Bank 1 remains
RPM still fluctuates and car loses power uphill.
No TCU/TRANSMISSION CODES // NO IMPROVEMENTS BY CHANGING MAF TOO
Videos and PDF with repairs done is attached on google link below.
VIDEOS AND PDF
Solutions are welcome and highly appreciated as I am totally fed up with Mechanics here.
Last edited by zsmian; 07-29-2022 at 07:22 AM.
