...as above, only had car a matter of months and eml on. My mechanic guy says reader says various sensors, pressure in exhaust and something else I can't remember, but he is a vw specialist and said if it was a vw he would suspect egr valve. Is this a big job? Expensive? I have read you can do egr delete somewhere? Car drives spot on, no flat spots, returns great mpg...would I be better starting with exhaust sensors etc..? Advice greatly apptrciated

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Should have added, car is f56, BMW diesel, 47k miles