E-Class (W211) 2003-2009

2005 E320 CDI Power LOST

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Old Apr 8, 2025 | 04:29 PM
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benzjag's Avatar
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2006 E320 CDI
2005 E320 CDI Power LOST

I have an odd acceleration problem with my 2005 E320 CDI. When I first start the car (hot or cold), the acceleration/power is awesome, BUT the power is lost within a few seconds. A good example is when I leave my house, the power is perfect. I have to stop about a 1/4 of a mile later, and I have no boost If I restart the car, the power is again awesome. I have also noticed if I start it and let it idle for maybe a minute, there will be no boost! To have perfect acceleration, I have to start going immediately! I have one CEL which is P2015 (intake manifold)..

Any guidance much appreciated!

Richard
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Old Apr 16, 2025 | 12:51 AM
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Nemanja34's Avatar
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From: California
1980 Mercedes 450SL, 2005 Mercedes e320 CDI, 2014 Mercedes e63s
There's a motor in the intake that can cause these exact issues. There is a motor on the turbo that can also cause similar issues. That code if for the intake so id start there.
There should hopefully be everything you need to see here https://www.benzworld.org/threads/e3...motor.3010622/
Wiring in a resistor is probably the easiest and cheapest thing to just try and test.
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