Tata Tiago AC Evaporator Coil Cleaning DIY

Join Date: Jul 2024

Location: Coimbatore

Posts: 73

Thanked: 273 Times

The Problem:
With much than 110K connected the odo successful the 8.5 years of my 2016 Tiago, it started to amusement AC issues successful the past fewer weeks. While the portion itself appeared to beryllium moving fine, determination would beryllium abruptly nary aerial from the vents aft astir an hr of driving (read AC running). I could perceive the blower centrifugal sound arsenic good arsenic the compressor kicking successful but nary motion of aerial oregon cooling from the vents. There was besides crystal enactment successful the rider footwell country wherever the aerial filter and evaporator coil are located.

Workshop Visit:
As with astir Tata owners, I was acrophobic to sojourn the ASC and took the car to an FNG AC store on with a person of mine. The infinitesimal they heard my car's property & odo, they were definite that the evaporator coil (also called arsenic cooling coil) would person clogged with ungraded and needs cleaning. This has much to bash with TML utilizing a mesh filter which allows good particulate to walk through, dissimilar insubstantial filters utilized successful astir cars these days. They besides hooked up a unit gauge to the debased unit larboard and recovered the unit beryllium fine:

A punctuation of 6K was fixed to us, requiring 3 to 5 days to region the dashboard, past region the coil for a thorough cleaning. I was apprehensive of getting scratches & damages to the dashboard plastics successful this process. After immoderate discussions with the FNG owner, we near the place, asking immoderate clip to deliberation astir getting the repair enactment done.

DIY Idea:
Later that day, my person looked up a fewer YT DIY videos and shared 1 of them wherever a coil cleaning liquid was sprayed onto the coil from the "air circulation" vent located adjacent aerial filter. Rather than utilizing a spray, my person suggested utilizing conscionable aerial compressor to cleanable the coil earlier finalizing the FNG visit. One good evening, I drove up to his spot wherever helium had entree to a tiny concern aerial compressor and attempted the process.

Cleaning Process:
First we removed the aerial con aerial filter utilizing the Taparia 974 stubby screw operator which I had bought lone for my regular filter cleaning activity. Then we utilized the compressor weapon from the aerial circulation vent (from the side) and aerial filter opening (from the bottom). Since I had driven ~10km to his place, the coil already had moisture connected it thereby helping with the ungraded to loosen up and autumn down connected the carpet area. We placed a discarded fabric cloth connected the level to forestall stains connected my banal carpet which had nary level matting. After astir 10 minutes we inspected utilizing telephone camera and recovered the coil it to beryllium overmuch cleaner than before. Tested the AC for fewer minutes and again utilized compressed aerial for a last ~5 minutes earlier re-installing aerial filter.

Before (missed to click a wide picture):

Air weapon (from the side):

Air weapon (from the bottom):

Notice the ungraded connected the level country from the cleaning process:

After:

Here is simply a pic from different Tiago proprietor from our societal media radical with his 6 twelvemonth aged Tiago:

Outcome:
Right aft the cleaning process, I observed overmuch amended aerial travel (almost 2X) done the vents and felt blessed astir our attempt, contempt not being the imperishable solution. To guarantee I did not consciousness a placebo effect, I did not pass this enactment to amended fractional who instantly felt the chilling aerial travel and adjacent reduced the somesthesia knob that was ne'er touched for a agelong long clip .

Learnings:
I learnt a fewer basics of car AC systems and got an accidental to get my hands soiled successful the process of cleaning the evaporator. Also saved ~6K and avoided scratches connected the dashboard. I person driven astir 1000 km since past and did not look the contented yet. Will proceed to observe the performance, particularly during agelong drives and update this thread.

While this whitethorn beryllium a impermanent solution, it worked rather good for maine and and went up with creating this thread, which mightiness assistance others. Looking guardant to BHPians' comments connected this attack and pitfalls if immoderate truthful that corrective actions tin beryllium taken.

Drive safe!