Regarding cabin filter, i have already told in other threads that Toyota Corolla cabin filter (cost: Rs. 500) can be fitted inside frame of Wingroad's cabin filter. Wingroad cabin filter have plastic frame on three sides, while Corolla filter does not have plastic frame and consists of filter paper only. So if inside of Wingroad filter is cut off and Corolla filter can be sticked within that plastic frame, it will work great.
May be it feels complicated, but it is just 5 minute job.
I got the same thing done from an AC workshop in Gujrat and only Rs. 600 were spent (500 for filter, 100 for labour). After fitment of that Corolla filter, now blower is working great, its noise is reduced substantially and AC cooling has also been improved.
