C250 CDi (2009 W204) Continuous Engine Problems.

[PChinnery]

Hi ajlsl600
Thanks for the link it looks like an excellent document.
Regards
Paul

 

[AA7861]

Can someone provide the exact part numbers of what sensors go where in the w204 please?

 

[Steve@Avantgarde]

Can someone provide the exact part numbers of what sensors go where in the w204 please?

Impossible. All sensors have been superceeded many times and not all sensors are the same for every vehicle.

What are you trying to find out/achieve?

 

[AA7861]

Impossible. All sensors have been superceeded many times and not all sensors are the same for every vehicle.

What are you trying to find out/achieve?

My car goes into limp mode, i need to identify which sensor is the turbo boost and manifold sensor along with the part numbers. The reason why i need part numbers is because, i’ve sort of changed around the sensors to get it to work, not knowing the sensors are completely different.

There are 3 of these sensors i need to know where they go and part numbers

 

[AA7861]

attached is the arrors of which sensors i need to know? 3 sensors, which one is boost pressure/manifold sensor? are all 3 the same or difference? which one is which please

 

[Billybaggins]

Thread revival, did this original issue ever get sorted, my car hesitates at same rpm under hard acceleration

 

[onefortheroad]

Thread revival, did this original issue ever get sorted, my car hesitates at same rpm under hard acceleration

You need to scan for error codes. Chances are your problem is dirty egr valve.

 

[Billybaggins]

You need to scan for error codes. Chances are your problem is dirty egr valve.

Its be scanned and all clear. No warning lights either

 

[onefortheroad]

Try injectors cleaner and maybe clean the egr.

 

[JB9090]

Was this problem ever cured? I've had the same problem with my 2009 c250 cdi after removing the dpf/cat and egr valve and having it remapped. Ive changed MAP and boost sensors. Had turbos inspected and came back fine. Also tried changing the engine relay as this was a fault coming up on the star machine. Had it into a few garages and had smoke tests done and other checks done and nobody can seem to get their head round the issue. Any help is appreciated TIA

 

[alexanderfoti]

Best to start a new thread for help, what problem are you having?

 

[JB9090]

Best to start a new thread for help, what problem are you having?

Theres a flatspot between 3000 - 4000 rpm in 3rd gear and above when hard on the accelerator. Ive been told that theses engines are bad for that when the turbo crossovers to the 2nd stage turbo but surely that cant be right and also diagnostic computers are flagging up boost sensor faults but all boost sensors have been changed

 

[alexanderfoti]

Start a new thread, and the community will chime in where possible.

 

[VieiraMo]

Há um flatspot entre 3.000 - 4.000 rpm na 3ª marcha e acima quando o acelerador está forte. Disseram-me que esses motores são ruins para isso quando o turbo passa para o turbo de 2º estágio, mas certamente isso não pode estar certo e também os computadores de diagnóstico estão sinalizando falhas no sensor de impulso, mas todos os sensores de impulso foram alterados

Tenho o Mesmo carro e o mesmo Problema

 

[ajlsl600]

Great minds! (I went through the same thing with my 320 cdi and a bad map)

Can't you just remove map to std and put back again, if need be.

 

[alexanderfoti]

Can't you just remove map to std and put back again, if need be.

That was 8 years ago, before I started amf auto

 

[ajlsl600]

Ah never noticed that.!!!!!! Perhaps old stuff with no useful info shud fade away to a real benz bin??

 

[alexanderfoti]

Ah never noticed that.!!!!!! Perhaps old stuff with no useful info shud fade away to a real benz bin??

Good idea. I think main issue is the poster who revived the 6 year old thread. Best to be a new post.

 

[ajlsl600]

Good idea. I think main issue is the poster who revived the 6 year old thread. Best to be a new post.

No worries. Next time I look better.