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    Thread: Tips on air filter maintenance.

    1. #1
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      Tips on air filter maintenance.

      Our car has two air filters. One is the engine air filter and the other the A/C air filter.

      Engine air filter) The company guys are pushing the after market air filter by BMC but I sincerely suggest you keep the stock air filter. Now the issue is when do we know its time to give a blow job(pun not intended) to the air filter and how do we go about doing it. First and foremost you will have to get a brand new filter for relative assessment. Clamp it in and go for a spin. Listen intently to a phrr sound between 1700rpm and 1900rpm when accelerating and while decelerating. The phrrr noise keeps diminishing as time goes by and when you no longer can hear it the time has come to clean the air filter. The sound on deceleration by 4000km is first to diminish and then by 10000km the sound on acceleration is negligible. Remove the filter and you will have to tap it on the primary felt filter facing down to remove co**** dust. Then use the carpet cleaning adapter of the vacuum cleaner and let the sucker do its job. Once cleaned put it back making sure and then doubly sure that the rubberized surround thats orange in colour is not damaged by extended screws of the cover of the air filter box. Mine was inadvertently damaged by the mechanic who replaced it with a new one. This surround is very important for the health of our engine. For guys with deep pockets change every 10000km.

      A/C air filter): Do not use the new design wire mesh air filter for the ac filter. Pay the service engineer triple the price to get hold of the old model paper/cotton air filter or get one from the open market. If there is no air flow in Speed 1 and you are not comfortable on an overcast but warm day on Speed 1 with three louvers directed towards you and the passenger louver closed then your filter is clogged and needs cleaning. Remove the filter and soak it over night in one cap full of Vim dishwasher detergent mixed with suitable quantity of water in a flat plastic basin/tub. Wash with a jet of water opposite to the direction of air flow denoted by the arrow mark the next day morning and let it dry in the sun. Put the assembly back and you are good to go for another 5000km. Repeat till you reach the designated end of cycle as mentioned in the manual. Even those guys with deep pockets should get it cleaned every 5000km, I shall show with photographs the cleaning procedure when I get time.
      Last edited by drpullockaran; 1st Nov 2012 at 17:03.

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      Quote Originally Posted by drpullockaran View Post
      I wish we could post photos here.
      I am sure we can. What problems are you facing?

      GearHeads India
      Last edited by WildWeasel; 1st Nov 2012 at 17:02.

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      The Cruze OE filter does pick up dust quite easily. I prefer changing the filter at every service which now would be at 7500kms. Unlike the earlier cars, the air box comes with screws and not clips that can be taken off easily. Wonder why GM would do such a thing?

      Back to the AC filter why do you say the new filter is bad? I got the new one fitted recently, the cooling is just the same. And one has to see the amount of dirt that the old one picks up. Not to mention that this new filter costs 20% of what the old one used to cost. At that price I'd not mind changing this filter at every service either.

      Company recommends the new filter can run much longer. I recently posted the details on my ownership thread.

      Instead of cleaning and reusing a sub optimum filter, isn't it better to just get new one at every 7500kms instead of the prescribed 15000kms? Both put together cost approximately 1k now.
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      Quote Originally Posted by mclaren1885 View Post
      Back to the AC filter why do you say the new filter is bad? I got the new one fitted recently, the cooling is just the same. And one has to see the amount of dirt that the old one picks up.
      If you get access to an endoscope with a light you should have a look at the aluminum fins of the evaporator coils after 10000km of using the new design cheaper filter. The old one picks up a lot of dust and that's why its so good and expensive too. It is doing its job and not allowing any muck past its filtration medium and hence gets clogged sooner. Cleaning the evaporator coil is very expensive.

      As far as engine air filter is concerned definitely a new filter every 7500km is well worth it. Wow!!! A new air filter, oil filter and engine oil every 7500km!! General Motors must be real happy with us.

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      Quote Originally Posted by WildWeasel View Post
      I am sure we can. What problems are you facing
      No problems. I for a moment thought I was in another Cruze forum. I have edited out that line.

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      Quote Originally Posted by drpullockaran View Post
      If you get access to an endoscope with a light you should have a look at the aluminum fins of the evaporator coils after 10000km of using the new design cheaper filter. The old one picks up a lot of dust and that's why its so good and expensive too. It is doing its job and not allowing any muck past its filtration medium and hence gets clogged sooner. Cleaning the evaporator coil is very expensive.
      Hhhhmmm! Let me check how the filtration ability is at next change and see. In all probability, GM would have run tests to ensure the new filter conforms to their standard specifications. I have often seen that the effect of AC withers away once the old filter gets clogged. Lets see if the new one shows any change.

      Quote Originally Posted by drpullockaran View Post
      A new air filter, oil filter and engine oil every 7500km!! General Motors must be real happy with us.
      Lol, I am sure they are. But I guess it's a small price we pay to keep our cars running without issues for close to 2L kms.
      2002 Tata Indica DLS.
      2004 Suzuki Zen - A G13B eater.
      2005 Suzuki Baleno - India's fastest Naturally Aspirated Baleno timed on a drag strip officially!
      2008 Suzuki Swift VDi - The Rattle King.
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      2016 Ford Ecosport 1.5 TDCi Titanium - The SQ Machine in the making.
      2017 Skoda Octavia VRS - A 400+HP corner craving machine!
      2014 MOC SQ Pro Champions.
      Harmonixx Tuning - Importers for Audiofrog & Arc Audio/APR Tuning Authorized Dealers/Engine Remap Specialists for all makes/models.
      Dealers for Rainbow/Mosconi/Eton/Stetcom/Tru Technology/Blam Audio/Mobridge/Stetsom/Audible Physics/AIV/Gladen/Dampmat/Dr Artex Damping and more.

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