How To Clean Pajero Air Filter

A couple of months back, I wanted to do preventive cleaning of the Cabin Air Filter on a Pajero Sport.

I've done this on several of my cars and my friends' cars in the past; took the glove box off to access the Cabin Air Filter cover, but on this car, found a nice plastic panel which "shields" the ugly looking wiring and AC blower assembly.

I opened the screws on the plastic panel, removed the clip holding the passenger airbag coupler to this panel, removed the panel and what did I see in an expensive import? No Cabin Air Filter

Importance of the Cabin Air Filter

I don't need to elaborate on the health benefits of this filter, but purely from a reliability standpoint, just having a cabin air filter with a robustly built AC saves it from a potential service.

Some examples to support this:

1. My 2005 Type2 Corolla H5 which is now with a friend is still on the original AC with the original refrigerant - beat that if you can

2. My 2007 Grand Vitara AC is also stock

3. My 2003 Corolla H4 had a nightmarish AC because its evaporator core had leaked and it took several rounds of diagnosis to find that. The core had leaked only because the dust on the outside had befriended condensation to cake up and eat the core from the outside. Reason? Only a cabin air filter frame with no filter on the 2003 Corolla.

I would add - no AC technician that I know can ever restore an AC to its factory state w.r.t troublefree performance because there is some step in the process of recharge of refrigerant that isn't done properly e.g..vacuuming (evacuation) is done in 10 mins while good practices recommend 30minutes plus.

Alright, here's how I went about the cabin air filter. I used the opportunity to clean the system out to the extent possible.

1. Got a Cabin Air Filter made by Zip Filters; took approx 14 days to be delivered.

This is a plug n play filter and doesn't have a cover on the filter housing like in other cars.

2. Took the glove box off to reveal the plastic panel

3.Removed the plastic panel which is held in place with screws on the side and just one plastic pop button at the top center.

4. Unclipped the passenger Air Bag coupler

5. Using a sharp cutter, cut through the air filter frame to remove the sealed portion - it came off in 2 parts which looked convenient.

6. The inside was full of dust so I decided to remove the kick panel below the blower, remove the blower, and clean the entire duct out

- by opening the fresh air flap I could access the flap and a portion of the upstream from beneath the blower housing - not easy but not impossible either.

- cleaned the blower suction and the blower discharge duct too till wherever I could reach using a dry cloth then using cloth dipped in surgical spirit.

7. Cleaned the blower lobes using wet tissue - this took approx 45 mins to do. Using hi pressure water was an option but I wanted it to be a dry operation

There is a small hose below the blower through which the blower motor is cooled by air from the blower discharge.

8. Closed the fresh air flap, and installed the cleaned blower

9. Installed the cabin air filter with two flat head wood screws to keep the filter in place.

10. Tested the AC and found the air flow excellent.

11. Re-installed the plastic panel, with the airbag coupler clipped on

12. Installed the glove box.

Paisa vasool !!!

How To Clean Pajero Air Filter

Source: https://www.team-bhp.com/forum/diy-do-yourself/226515-c-air-path-clean-out-cabin-air-filter-installation-mitsubishi-pajero-sport.html

Posted by: holtonthentand.blogspot.com

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