Mercedes w203 c220cdi fault code 2509 & 2514

Seanin

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Apr 17, 2016
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Dublin, Ireland
Your Mercedes
06 mercedes c220cdi 150bhp 6speed
Hi guys.
I'm a newbie to the club. Have a problem with finding theses two fault codes. Finally got the car remapped yesterday but the technician that carried out the work suspect that the turbo isn't boosting properly. Coming from a remapped 530d bmw I thought it was all in my head that the merc lacked a bit of poke since I bought it 6 months ago.

These are the codes that we found

2509
-heater booster control module,positioned signals fault
-permanent

2514
-vent line element signal line is interrupted
-permanent

Would like to find the location of these as I've looked all over the net for a pic or a diagram.

Cheers:confused:
 
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