E-Class (W211) 2003-2009

Check engine code p0400

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Old Mar 25, 2020 | 06:06 PM
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György Szabó's Avatar
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1999 Mercedes e320 4matic
Check engine code p0400

My 06 e500 4matic has the code p0400 witch is the exhaust gas recirculation flow, autozone said fuel injection cleaner sould fix the problem so i bought a techron one,but before i put it in i like to ask you guys, you think it will fix this or you recommend something else?
Thank you, George
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Old Mar 25, 2020 | 06:31 PM
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From: Merkville the galaxy of Stars
'99 CLK/05 E500 WAG
Originally Posted by György Szabó
My 06 e500 4matic has the code p0400 witch is the exhaust gas recirculation flow, autozone said fuel injection cleaner sould fix the problem so i bought a techron one,but before i put it in i like to ask you guys, you think it will fix this or you recommend something else?
Thank you, George
Nope, it won't! Check the vacuum lines , and the EGR hoses too! The EGR line may be clogged up, and/or the EGR is stuck in the closed position. I would replace it! The parts are obtainable on fleabay and takes about 1 1/2 hours of sweat equity!
R
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Old Mar 25, 2020 | 07:36 PM
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György Szabó's Avatar
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1999 Mercedes e320 4matic
Originally Posted by 2MERKS
Nope, it won't! Check the vacuum lines , and the EGR hoses too! The EGR line may be clogged up, and/or the EGR is stuck in the closed position. I would replace it! The parts are obtainable on fleabay and takes about 1 1/2 hours of sweat equity!
R
2MERKS
thank you, i will check them 👍
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Old Mar 25, 2020 | 08:31 PM
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From: Merkville the galaxy of Stars
'99 CLK/05 E500 WAG
Originally Posted by György Szabó
thank you, i will check them 👍
No worries, but pretty sure the crew(member) will chime in! The group has talent!
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