Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 16th May 2007, 15:12   #16
BHPian
 
anonymous's Avatar
 
Join Date: Jan 2007
Location: NCR
Posts: 564
Thanked: 15 Times
Default

Me today went for AC checkup of my Indica, its 3 yers old and I started feeling this session that AC is not that affective as it used to be earlier. The service center guy checked the AC by turning it on on full and said that ac is fine and there is no need to do anything. When I asked him for Gas top up, he said that there is no need for it.......he suggested that for more effective cooling, I can put some kind of cover on the dashboard, as the ac coil is right underneath the dash and if the dash it covered with something, it will work more effectively.......It sounds like a good idea but I do not know what to use to cover the dash............I want something nice and decent looking cover there.......Any suggestion?
anonymous is offline   Reply With Quote
Old 16th May 2007, 16:58   #17
Senior - BHPian
 
Join Date: Apr 2007
Location: Pune
Posts: 2,453
Thanked: 955 Times
Default

I have some questions about car A/C:
1. Ideally the refrigerant gas should never leak. Then why is it often recommended to top-up? Can this gas leak in normal circumstances (without any accident, etc).
2. I have an NHC and there is sticker in the engine bay that says R134...I thinks this a kind of CFC gas. Correct? Leakage into atmosphere will cause ozone depletion. Isn't it?
3. A/C compressor lubrication? What's normal serice duration? And I was thinking - for our home A/C, I have never got the lubrication serviced...is that OK?
anandpadhye is offline   Reply With Quote
Old 17th May 2007, 00:06   #18
BHPian
 
somebodystopme's Avatar
 
Join Date: Nov 2005
Location: Delhi
Posts: 502
Thanked: 15 Times
Default

I got my Esteem's A.C serviced.

1. Got the compressor, blower and radiator removed throughly cleaned and lubricated.

2. I Got the a/c's pipes checked for gas leakage no major leake points bt one area was doubtful so got that removed and installed a new pipe.

3.Full change of gas.

4.Got the outside/inside vent sealed.
Total procedure costed me 1400.

The guy said no need to change O rings as it wasnt necessary.
But unfortunately when time to check came then it strted raining heavily and ofcourse A/C's performance Was amazing.
I will test it in heat tom. LEts see If i still smell auto rickshaws smoke.

Did i miss on some points. If yes let me know will go to him again.
somebodystopme is offline   Reply With Quote
Old 18th May 2007, 13:26   #19
BHPian
 
nura's Avatar
 
Join Date: Feb 2007
Location: Kolkata
Posts: 585
Thanked: 8 Times
Default

I would like to know the normal readings on the manifold gauges for low pressure & high pressure sides in a Santro ZipPlus 2002 AC. What other measurements are to be taken when diagnosing AC problems in the Santro?
Also, can a customer buy a service manual? I did buy the Maruti 800 service manual a few years ago & it was really good.
Thanks in advance.
nura is offline   Reply With Quote
Old 18th May 2007, 16:10   #20
Senior - BHPian
 
Join Date: Apr 2007
Location: Pune
Posts: 2,453
Thanked: 955 Times
Default

[quote=somebodystopme;439824]
I will test it in heat tom. LEts see If i still smell auto rickshaws smoke.
/quote]

I sometimes get the auto/truck smoke smell inside my NHC (while A/C on) and I get disturbed...don't know how to spot where the leak (By leak I mean atmospheric air leaking into the cabin, not the refrigerant gas)is...just wondering how this got taken care of during A/C servicing for you?
anandpadhye is offline   Reply With Quote
Old 19th May 2007, 19:31   #21
BHPian
 
Join Date: Feb 2007
Location: Jabalpur
Posts: 86
Thanked: Once
Default

Sometimes even cleaning the engine compartment with water ( that cleans the AC components too) can have dramatic effect on the cooling of AC. My AC temperature was not going below 16 degree centigrade. After cleaning with water ( which removed the dust), the temperature is now getting down to 7.9 degree centigrade, which is perfect.
squarecut is offline   Reply With Quote
Old 19th May 2007, 21:20   #22
Senior - BHPian
 
drifter's Avatar
 
Join Date: Sep 2004
Location: Bombay
Posts: 1,469
Thanked: 13 Times
Default

Quote:
I sometimes get the auto/truck smoke smell inside my NHC (while A/C on) and I get disturbed...don't know how to spot where the leak (By leak I mean atmospheric air leaking into the cabin, not the refrigerant gas)is...just wondering how this got taken care of during A/C servicing for you?
No AC system is completely in re-circulation mode, even when the re-circulation mode is on, tiny amount of outside air will always come into the cabin.

Drifter
drifter is offline   Reply With Quote
Old 16th October 2007, 09:49   #23
BHPian
 
Join Date: Aug 2007
Location: Bangalore
Posts: 155
Thanked: 3 Times
Default Blower Slow - Please Help

I got WagonR 2002 serviced at 60k kms yesterday. All the work was carried out including clutch replacement, but my blower issue- hardly throwing any air, was not fixed. Blower also sounds choked.

AC is chilling very effectively though.

The service person told me that AC coils must be clogged
and cleaning them takes 2 days as they have to open entire dashboard. They will also have to top up the gas. The estimated price is 3.5-4K!
He was trying his best to discourage me from getting the job done at this service, also since I wanted the car back urgently. It had already spent 3 days at service station.

Can anyone please throw light on cause of low air from blower, time it takes to clean and costs?

Regards
megger is offline   Reply With Quote
Old 16th October 2007, 10:14   #24
Senior - BHPian
 
Join Date: Apr 2007
Location: Pune
Posts: 2,453
Thanked: 955 Times
Default

Quote:
Originally Posted by megger View Post
I got WagonR 2002 serviced at 60k kms yesterday. All the work was carried out including clutch replacement, but my blower issue- hardly throwing any air, was not fixed. Blower also sounds choked.

AC is chilling very effectively though.

The service person told me that AC coils must be clogged
and cleaning them takes 2 days as they have to open entire dashboard. They will also have to top up the gas. The estimated price is 3.5-4K!
He was trying his best to discourage me from getting the job done at this service, also since I wanted the car back urgently. It had already spent 3 days at service station.

Can anyone please throw light on cause of low air from blower, time it takes to clean and costs?

Regards
Cleaning of evaporator coil is no doubt cumbersome and for my NHC it took them 1 full day (the entire dash has to be opened). But they should give you concession on gas refill (because, ideally they should charge the customer for the net amount of gas filled i.e. amount of gas filled - amount of gas evacuated) and because the complaint is not about cooling or gas leakage, they should appreciate that gas recharge is just an un-necessary step required here (I mean technically it's required, but they will end up reusing all the gas that was already in).

Since it's a maruti, you can find non-maruti AC guys who can do the job a little cheaper, but yes, please get it done.

BTW, I am pleasantly surprized to see the chanrges for Wagon R similar to that of my NHC (if not a little higher)...

Last edited by anandpadhye : 16th October 2007 at 10:15.
anandpadhye is offline   Reply With Quote
Old 23rd October 2007, 12:13   #25
BHPian
 
Join Date: Aug 2007
Location: Bangalore
Posts: 155
Thanked: 3 Times
Default Solved - Blower Slow - Please Help

Quote:
Originally Posted by megger View Post
I got WagonR 2002 serviced at 60k kms yesterday. All the work was carried out including clutch replacement, but my blower issue- hardly throwing any air, was not fixed. Blower also sounds choked.

AC is chilling very effectively though.

The service person told me that AC coils must be clogged
and cleaning them takes 2 days as they have to open entire dashboard. They will also have to top up the gas. The estimated price is 3.5-4K!
He was trying his best to discourage me from getting the job done at this service, also since I wanted the car back urgently. It had already spent 3 days at service station.

Can anyone please throw light on cause of low air from blower, time it takes to clean and costs?

Regards

I wasn't very convinced with Bimal service person so I opened almost 90% dashboard. Realising I need to remove ICE and fron speaker which are not properly connectorised, I repacked and started searching for air filter. And I found it below glove compartment. I had hit upo it last month too, but it is behind a protective plastic grill.

To my amazement I found Bimal Auto guys have already cut that grill . My fingers slide in easily and hit 2-3 mm fiber mixed dirt on the filter. I sucked it all out with a vaccum cleaner in a minute and blower is as good as new!

3-4K saved and I am shocked to see my trusted dealer's service personnel trying to take me for a ride. They cut the grill and did not clean the filter. Even told me on phone that there is no inside air filter which was hard to digest even for a novice like myself.
megger is offline   Reply With Quote
Old 10th August 2009, 11:46   #26
Senior - BHPian
 
Join Date: Jul 2006
Location: Bombay
Posts: 1,007
Thanked: 229 Times
Default Air-con servicing

What should be the general recommendation for carrying out AC servicing? My general impression was about 20-25k km or 3 years. My Maruti A.S.S. is insisting I carry out the servicing every 10k km or every 1-1.5 years.

If this has been asked before, my apologies and request the mods to delete this thread and/or links to that thread.
sandeep108 is offline   Reply With Quote
Old 10th August 2009, 12:07   #27
gpa
Senior - BHPian
 
gpa's Avatar
 
Join Date: Aug 2008
Location: Bangalore
Posts: 1,772
Thanked: 273 Times
Default

sandeep,

Actually, am not sure if a "general a/c servicing thread" and the do's and don'ts that go with it. Mods, if this post is out of place, kindly move it to a new section/relevant thread.

To answer your question, you don't need a service of your car's a/c every 10,000 kms. The service guy is trying to pull a fast one on you. Which car do you have?

A full service of the a/c is recommended every 3 years with occassional checks every 2 years even if the a/c is working fine as all vehicles leak some refrigerant past seals and through microscopic pores in hoses.

The older the vehicle, the higher the rate of seepage. The a/c system capacities also tend to be smaller on newer vehicles, so any loss of refrigerant will have more of an adverse effect on cooling performance.

Hope this helps

Cheers,
gpa

Last edited by gpa : 10th August 2009 at 12:08.
gpa is offline   Reply With Quote
Old 11th August 2009, 07:56   #28
Senior - BHPian
 
harjeev's Avatar
 
Join Date: May 2006
Location: New Delhi
Posts: 1,896
Thanked: 256 Times
Default

I agree with GPA
I had an Accent earlier and sold it after using it for 8 years. Though its recommended to service it every 3 years I did the 1st service after 4 or 5 years, I think!!!

This thing is if its not giving any issues, why do you wanna play around it with. But a AC service every 10k is total crap!!!
harjeev is offline   Reply With Quote
Old 11th August 2009, 10:49   #29
Senior - BHPian
 
Join Date: Jul 2006
Location: Bombay
Posts: 1,007
Thanked: 229 Times
Default

Thanks for your replies, GPA/harjeev. It is a Maruti Swift and this appeared to be usual ploy by the dealer to increase billing.

I did have an AC compressor failure in a car that was 7 years / 60k km old, because that AC was never serviced. On asking / reading around, I have decided to carry out full AC servicing on all my cars at 25-30k km or 3-4 years, even if I have no problems with the AC.

Obviously the 10k km / 1.5 years is crap by the dealer (as is engine wax, fuel saver, additives, etc.) and I just wanted reconfirmation of this.
sandeep108 is offline   Reply With Quote
Old 31st August 2009, 00:46   #30
Newbie
 
jaguar9's Avatar
 
Join Date: Aug 2009
Location: Bangalore
Posts: 21
Thanked: Once
Default

I have a 1999 Santro (top end)
The AC is working fine, but when ever i switch it on i can smell the same smell which we get when it rains for the first time. Or to be precised the smell of dust getting wet.
I have used the option of ventilation (as opposed to Circulation) a number of times at including few dusty roads. Does this mean that i need to clean some kind of filter somewhere? Also i observed in a new Santro that it was written/marked, that the Ventilation option should be used only with blower option, of air from the grills below the windscreen ONLY.

Can some throw some light on this?
Also how can i clean the filter myself, and the location of it.
jaguar9 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
"on Time Every Time" Tsd Rally For 4w bssujith2 Indian Motorsport 8 26th August 2011 17:30
Cochin Bhpians: It's time for Summer Splash D R I V E Silver Knight The Team-BHP Meet Section 72 17th May 2009 17:10
Part time/Full time 4X4 In India svsantosh 4x4 Technical 16 12th November 2008 16:06


All times are GMT +5.5. The time now is 19:48.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks