Check Engine light issue sometimes CLS350 CDI (2013)

[Kubi10x]

Hello guys

I have a P0404 egr problem ( sometimes now) i went to my local garage and repaired it (egr valve) changed so my car drives normal fuel economy is good as well but sometimes when i'm at traffic and when my engine is like 90 degrees the check engine shows up but the weird thing is that the car is still the same ( fuel , power etc ) i went to my local garage as well for this and he said that it is very normal that the car shows check engine light ( p0404 ) again. Is this really normal like he said ?

Any suggestions for this??

My car has Om642 engine

 

[tode]

No, it's not normal. Take it in to MB.

 

[Kubi10x]

No, it's not normal. Take it in to MB.

I have no power loss or poor economy? And The guys from the MB dont help me at all so im f*****.

 

[tode]

Did they put it on Star ?

 

[Kubi10x]

Did they put it on Star ?

Wdym about that ?


If they wish me luck with it ? I guess yes

 

[tode]

Star is the diagnostic system for MB cars.
If the engine warning has come on, then you should have a fault logged.

 

[Kubi10x]

Star is the diagnostic system for MB cars.
If the engine warning has come on, then you should have a fault logged.

As i have mentioned p0404 it is an EGR error and my garage has changed the EGR valve but I still sometimes have an engine light on and afterwards it goes away on its own

 

[tode]

If the engine warning comes on, then you have a problem. It could still be the EGR, but it may be an unrelated problem.

To find out, get it put on Star.