Hi new ti me car , 91k miles , done 1500 faultless miles of mixed journeys then flashing glow plug lighthas come on driving recently.

 

Car goes into reduced power mode.

 

Put on a reader and code P0403 comes up, EGR Control circuit.

 

Quick Google and this could point to EGR solenoid valve playing up ?

 

Car drives / Idles / Accelerates perfectly when light off so I don't think EGR valve is actually stuck ?

 

Any informative thoughts ? 

Hi. I’ve not had the flashing lamp or limp mode, but I’ve had the same fault code. 
 

result= new egr valve, I paid about £500 all in.

Look at this post below for the easy & cheap fix for this problem.

 

On 03/12/2021 at 18:03, Gremlin170 said:

Hi. I’ve not had the flashing lamp or limp mode, but I’ve had the same fault code. 
 

result= new egr valve, I paid about £500 all in.

I've just got the same code, funnily enough another 2012 superb 170 2.0 diesel. ODIS diagnostic is egr cooler but as valve and cooler is same unit I was quoted 720 for parts and labour at an independent specialist for an original part. Ebay has some cheap parts but I don't know whether they fit the car..