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      04-20-2019, 02:44 AM   #1
Enlisted Member

Drives: F31 320D N47 2014 EffDyn Auto
Join Date: Nov 2018
Location: UK

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Exclamation Low coolant on diesels = likely EGR cooler failure

Check your coolant expansion tank regularly; if it goes low for no apparent reason, (like mine did twice), get the motor to a dealership & have them diagnose the EGR cooler "regardless" of whether you have had a notice letter or not! At the time, I hadn't had a letter, but I insisted the dealership check the EGR cooler when the car was in for service early Nov18; they diagnosed it as defective; replaced it early Dec18 free of charge! My car 2014 320D EffDyn was on 102k miles at the time & full dealer history! Get it checked & replaced! Also, make sure any communication is done via email, that way you have everything documented for evidence sake.
Good luck & kind regards
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