Same thing happened to me .. SDAC foreman advised me " Next time ah, if mau change battery be a bit more careful " 

Crawl under your driver footwell, look upwards under your dashboard. You will see the steering intermediate shaft, a black metal tube from your steering column to the firewall behind the pedals.

The intermediate shaft has couplings (CV joints) on both ends, one at the firewall and one directly behind the steering column. In most cases for the Fiesta, it is the coupling behind the steering column that makes noise. That's where the grease should be applied.

Finally got the time to install my cabin filter.

This is the arrangement I illustrated earlier, one on top one at the bottom, with a bit of overlap in the middle:



If you have not installed yours, do take some time to inspect the evaporator condition while you have the cover opened, mine is clean as I have been using cabin filter since the early days of owning my car.


All said and done it's a 15 minute job. My old filters are not that dirty upon visual inspection, but the airflow from the vents are noticably stronger with the new filters.

most probably it is steering wheel assembly.