E350 CDI aspiration issues

[E350 CDI Coupe]

I own a E350 CDI Coupe Sport, 59 plate, had it 11 months and put 20k on it. The engine sometimes seems to struggle to aspirate itself when at normal running temp. It occurs when you blip throttle on standstill - sounds like the hoses / pipes are struggling to draw air in.... Has anyone else had this problem? Any suggestions...

I have it booked in for a look at my local dealer where I bought it, but wanted some views first so I don't get fobbed off.

 

[markjay]

Not sure about your problem, but it is generally not bad idea to buy a code reader so that you have some idea what codes the engine it throwing up before you see the dealer. The Autel MaxiDiag EU702 for example costs around £150-180 (and can also read and reset manufacturer-specific codes e.g. airbag, ABS, etc). Hope this helps and welcome to the forum.

 

[Satch]

Not sure what you mean by "sounds like the hoses / pipes are struggling to draw air in"

 

[BlackC55]

Is it a hissing noise?