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Old 28th August 2009, 21:43   #1
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Default Skoda Laura L&K Compressor and Condenser question

I have a Laura L&K which has been having trouble with the A/C for quite a while and nothing really was done about it during the warranty period and now i am being told that I have to change the condenser and the compressor for the aircon.

The problem is that when i turn the A/C on, it blows hot air, and I have to switch it off and on multiple times and in one of those times the A/C picks up and chills properly, however, for some reason it won't work everytime.

I tried arguing and the usual negotiating stuff, but it looks like (and as is apparent from the forums) Skoda is really not interested in listening.

Now what i am looking for are the following :-

1. I'm being quoted 65,000 for the whole job by Silvertone motors, is this accurate?
2. If the condenser and compressor are really KAPUT then how is it that the one time the A/c kicks in, it works perfectly well?
3. Is there someone in delhi who can help me with this problem (a mechanic or someone who knows the Laura electricals).
4. While i think Skoda is not being helpful, I really don't want to rant, I have a car that I bought and I need those wheels to get me around with the least problem.

Any help is more than welcome.

Happy landings
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Old 29th August 2009, 01:00   #2
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From what you have mentioned it seems there is some wiring coupler/contact loose as sometime it is working sometimes it is not . I would suggest get the wiring going to the compressor clutch checked .If your condenser has never been hit it is very rare for condenser to be damaged unless something is stuck inside . Even when something is stuck inside being a multiflow condenser it should still be working pretty decently.
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Old 29th August 2009, 02:09   #3
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You are right @ duke. If the A/c works well once in a while it means the compressor and condensor etc are ok. As TiT has pointed out, it is most probably a switch / wiring / ac. compressor clutch problem.

Cheers,
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Old 29th August 2009, 02:45   #4
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Better take your car to a famous good Ac wala in your area and first get the problem diagnosed from them.
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Old 29th August 2009, 07:11   #5
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This is describing symptoms that I have in one of the cars with me. The culprit is likely the temperature sensor or the relay circuit. We cleaned the connectors and sensor but no improvement. Next in line is a swap of circuit with other car to confirm that this is the culprit. May be this Sunday.
I would go with the suggestion of getting it checked with A/C specialists that abound Lajpat Nagar in Delhi.
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Old 29th August 2009, 08:37   #6
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One Sardar in Lajpat nagar has a famous AC only repair shop. That is opposite the Zeiss showroom. Consult him
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Old 29th August 2009, 10:32   #7
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Hi Duke,

I also own Laura L&K. I am having the exact same problem you mention in the thread with it. They suggested me to replace the compressor, but since it is in warranty they will have to do at their expense. But the funny thing is its been 2 months and they still doesn't have the new compressor with them.
After doing some research I got to know that kaput AC is Laura's Standard problem. Now I wonder what was I thinking when I bought the damn car. Their A.S.S suck.

What I would suggest is if your car is out of warranty then get is repair for non-authorized garage, who has good knowledge about Car A/C.

Manu

Last edited by manu7781 : 29th August 2009 at 10:33.
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Old 29th August 2009, 11:00   #8
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Headed off to the Sardarji's shop (Opp. the Zeiss Showroom) at Lajpat Nagar. Will update once I get back from there.
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Old 29th August 2009, 14:13   #9
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Okay, so i went to the sardarji's shop (Its called Quick Airconditioning) next to the Zeiss showroom in Lajpat Nagar.

He said it was the compressor that was kaput, and that he didn't have the compressor since it was imported directly only by Skoda India.

Called up a contact in Skoda, who was nice enough to give me the Sanden part number for the compressor, it is 1K0820859F for the compressor.

Called Sanden-Vikas, who seemed to have no clue about this part number.

Called up my good friend and Team-BHP member Arush to help me out with it, and waiting for him to call back. If I do manage to get the compressor which i believe is in the range of 18,000 - 20,000 and add another 7,000-10,000 for the fitting and labour and stuff that goes with it, I should be able to have the problem rectified in under 30,000 at max.

@sudev - The relay circuit and temprature sensors are not the culprit since Skoda has a on-board warning display when one of these konks off. Most likely you have the Compressor trouble as well. I already went and met with the Sardarji uncle at Lajpat and he wasn't able to help, so that should save you a trip.

@TiT - I was told the laura aircon does not have a clutch and is piston based.

@manu - I have had this issue for over a year now and the car was well with-in its warranty and the Skoda guys dilly dallied all over the place with paperwork, and once the car is out of warranty, they raised their hands. The dealer can only do so much, when the company that backs them doesn't stand by them. Make sure you have this all documented, else you'll run into the same situation as me.
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Old 29th August 2009, 17:43   #10
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@duke ; I still have my apprehensions that it is the wiring connector where the problem is there .Also every compressor has a clutch in automobiles unless you have the electric compressor as seen the Toyota Prius developed by Denso. You said sometimes it works sometimes it doesnot so means the current to engage the clutch is going sometimes or not going other times .
I would suggest use a multimeter , disconnect the coupler at the clutch end and check if you have any voltage there or not. If not then for sure it is the relay or some other connector that is faulty.Also check is your condenser fan working or not .May be possible the condenser fan is not working sometimes due to which the compressor automatically stays in off mode.

Also please let us know how he checked the system to reach the decision that the compressor is bad/faulty.

Last edited by Trust_In_Thrust : 29th August 2009 at 17:44.
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Old 29th August 2009, 18:34   #11
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Quote:
Originally Posted by duke View Post

@manu - I have had this issue for over a year now and the car was well with-in its warranty and the Skoda guys dilly dallied all over the place with paperwork, and once the car is out of warranty, they raised their hands. The dealer can only do so much, when the company that backs them doesn't stand by them. Make sure you have this all documented, else you'll run into the same situation as me.
Ya they are still waiting for the part to come from Aurangabad. They themselves are tired of the Skoda spare part delivery system.
I am also having this problem from last 6 month. They first changed temperature sensor but it didn't work so they now suggested to change the compressor.
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Old 30th August 2009, 05:40   #12
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Duke why do you experience cooling if compressor is kaput? I do respect the air-con guys opinion as he has seen your car first hand but this doubt remains. I am going at it step by step as once the air con kicks in the cooling is very effective and if I push to manual mode it continues for hours.
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Old 30th August 2009, 06:54   #13
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1. If the AC cools some times then comressor cant be bad. Once it is dead, it cant cool.

2. I also believe that there is something wrong with the electricals / electronics or sensors. Have them checked thoroughly.

3. I had faced a similar problem in my Matiz after having done 98000 kms. AC was cooling internitantly. The problem was traced to engine overheating due to clogged radiator which led to engine overheating and a heat sensor used to cut the compressor to avoid further air heating. Get your radiator fins cleaned by a high pressure jet and have it flushed also. Lets see if it works.
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Old 31st August 2009, 11:34   #14
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@TiT - The Laura compressor doesn't have a clutch, instead what it has is a governor and a control valve, which means that unless the compressor doesn't produce 28psi the valve doesn't open. The Octavia & The new Superb both have clutch, however, the Laura doesn't (And i'm given to understand neither does the VW Jetta or the Audi). In order to test the compressor, the control valve was connected to a simple air pressure monitoring gauge to see how long it took for the pressure to build up, and it became quite apparent when the initial pressure was 3psi that the compressor wasn't generating enough pressure for the control valve to open, and hence it would take a long time to build the pressure and then the control valve would open and cooling would start.

@Sudev - You're correct, the point is that I had to switch the aircon off and on several times, what I was inadvertently doing was allowing the compressor to build up the pressure and the one time that it kicked in was about 30mins after starting the aircon by which time the pressure had built up.

Finally, since I couldn't locate a Sanden compressor, I bought a Valeo compressor (the new model) for the Laura (which is a VW OEM), and had it installed. Total damages, Compressor Rs. 22,500, Filter Rs. 300, Cap & Seal Rs. 1700, Condensor couldn't find so didn't replace, Vacuming and Gas - Rs. 950, Labour Charge - Rs. 5000. Total Cost Rs. 30,450...... And boy it feels so cool now :-)
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Old 25th September 2009, 21:09   #15
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Completed 500Km since the new compressor was fitted. No problems yet, it cools like the polar ice caps now... gets the windscreen all fogged up...

Planning to open up the older compressor over the long weekend to do a failure analysis.... Need to pull out my good old engineering books to remember what worked how....
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