Swirl flap actuator arm fallen off
Hi all. I did a random code check on my 2010 185 d5. It had p2015 stored so I checked swirl flaps and noticed the actuator arm had come off. I've ordered a new one to stick on however am curious as to why the eml did not come on there is no loss of power or mpg. There is no limp mode.
Why should this be and what would happen if I left the arm off?
Thanks
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