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Hi all,

 

Would like to check if anybody have experiences similar to mine? My w204 is from the year 2014 and I've been experiencing air con issues such as when the car is parked stationary under sun for long hours (4 hours onwards), the aircon will just blow hot air all the way until about 5-7 minutes (driving or idling).  If the car is parked under shelter for long hours, it will take 5 minutes before the cold air comes in. I've sent to cycle and carriage for diagnostic about 3 times now and they give me all sort of reasons like compressor fluid insufficient, just wondering anybody have a solution? 

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i am having the same problem too... W204 FL C180... when parking under shelter dont hv this problem, only parked under hot sun for hours will hv this issue... gonna send to pandan for diagnosis next week...

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Thank you guys for replying! Actually I've sent to Ubi for the first instance and they said they needed to updated the software (doesnt work), Second time sent in for servicing and raised issue at leng kee, was told that couldnt find any issues, Third time sent in to leng kee again and was told my compressor fluid was below factory specs and they did a full diagnostic on my compressor and found no other issues. So being pissed that Singapore is already very warm and the air con is still blowing hot air, I brought the car to a independent workshop for opinion and was told that my compressor has pressure problems bringing the fluid to flow around the compressor after the engine has completely cool off. I just wrote an email to C&C to escalate this issue, hopefully something would be done this time. I want to get this fix before my warranty ends hahaha

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Hi,

 

If the car is old, it could be sticky compressor clutch. It happened to me on my previous ride Volvo, when hot, sometime the air cond compressor clutch fail to engage, due to week magnetic force or gap getting wider, it will have intermittent  cold air ..

 

Too bad then for that car, the clutch is not a separate component & come as part of the valeo compressor unit, In the end, I need to change the complete compressor just to solve the clutch problem .. 

 

 

cheer

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  • 1 month later...

Hello jehkoh... you got any good resolution from C&C so far?

 

Thank you guys for replying! Actually I've sent to Ubi for the first instance and they said they needed to updated the software (doesnt work), Second time sent in for servicing and raised issue at leng kee, was told that couldnt find any issues, Third time sent in to leng kee again and was told my compressor fluid was below factory specs and they did a full diagnostic on my compressor and found no other issues. So being pissed that Singapore is already very warm and the air con is still blowing hot air, I brought the car to a independent workshop for opinion and was told that my compressor has pressure problems bringing the fluid to flow around the compressor after the engine has completely cool off. I just wrote an email to C&C to escalate this issue, hopefully something would be done this time. I want to get this fix before my warranty ends hahaha

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  • 1 year later...
Hi everybody, my name is Vladimir and I'm from Brazil.

I am having the same problem with my W204 C180 2014. When it is parked in the sun and then the vehicle gets hot the air conditioner does not work properly. Hot air blows out for about 7 minutes and suddenly the compressor starts to run and blows cold air.
Did you find out what this problem is?

Thanks in advance for the answers...

 

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  • 6 months later...
  • 3 weeks later...

just to offer a possible "out of the box" explanation, my w204 FL also face this problem.

After pondering over this issue, i gather it could be the car's system trying to cool down the "evaporator"(ie blowing air over it and cooling it down) before cutting in the air con. As the evaporator is hot(usually park a reasonable long time under the sun and you know is hot cos the air blowing out is quite hot), introducing cool air with the hot evaporator as such temperature extreme will cause material fatigue(rapid cooling of the metal material).  

I have lived with mine, so far so good, the air con is very cold, no complaint.

 

 

 

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  • 4 months later...

I have similar problem. At first air-con is blowing smelly air.. my daughter said it smelt sour... It only happened when the car just started and back to normal when car is moving for a while...

The other issue I had with the air-con is, it becomes warm when car is idling for 10 minutes or more... The air-con stops functioning although engine is on...

Finally, brought it to a workshop. They said compressor is not functioning properly and the seal had deteriorated to give a foul smell.....

Replaced everything and now is all good...

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20 minutes ago, jskywalker said:

I have similar problem. At first air-con is blowing smelly air.. my daughter said it smelt sour... It only happened when the car just started and back to normal when car is moving for a while...

The other issue I had with the air-con is, it becomes warm when car is idling for 10 minutes or more... The air-con stops functioning although engine is on...

Finally, brought it to a workshop. They said compressor is not functioning properly and the seal had deteriorated to give a foul smell.....

Replaced everything and now is all good...

Hi, did the Mech say what seal he changed ? I am curious. Also how much did the repair cost ?

 

thanks

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10 hours ago, jskywalker said:

He didn't specify and I didn't asked. But I suspect must be related to the compressor change....

ok, thanks for your reply. How much did the compressor and labour cost ?

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  • 1 month later...

I have the W204 FL , made in 2013, and had this issue for damn long.

So anyway, went to a renowned car workshop in Sin Ming and they did checks and said no issue.

So went to a workshop who specialised in mercs upgrades in Toh Guan, and solved the aircon issue for me.

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On 14/01/2019 at 2:07 PM, kohi said:

I have the W204 FL , made in 2013, and had this issue for damn long.

So anyway, went to a renowned car workshop in Sin Ming and they did checks and said no issue.

So went to a workshop who specialised in mercs upgrades in Toh Guan, and solved the aircon issue for me.

Hi,

can u please share what was done ? How much did it cost n down time ?

 

 

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On 14/01/2019 at 2:19 PM, kohi said:

Valve and compressor was the issue for me. Took about 2 days since the workshop had the parts. $11XX including labour. 

Thx for the info buddy.

 

 

regards

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  • 3 months later...
  • 2 weeks later...

My problem became worst like when i don' t drive for more than one day, when i turn on the aircon, it does not work. I had to on & off a few time before the air con turns on.

Was told the expansion valve is intermittent/sticky(update 15/11/2020, i was told it was caused by the pressure pump. when i replaced the compressor, i apparently also replaced the pressure pump) causing the air-con not to cut in. Air con compressor replaced. So far ok !

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  • 1 year later...

Hi guys, hope you are all keeping well amid the current Covid situations. 

Am driving '09 C180K 1.6l, and I need your expert advise if any of our members here have the same issue as me- the air-con is not cold when car is stationary after about 5 mins (not parked under the hot sun), with the RPM unstable (goes up & down in 700-800rpm), and i could hear some soft noise from the engine bay. However, air-con is cold when I am driving again.

I bought the car (1 owner) in 2017 and renewed the COE Apr 2029. The air-con compressor is quite new and it was just changed last year. I have not done anything to the other air-con components though.

I am not too sure if this has anything to do with the CB period when we don't drive the car too often. Any comments or advise would very much be appreciated. Thanks and stay safe & healthy.....  

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On 5/26/2016 at 5:12 PM, jehkoh said:

Hi all,

 

Would like to check if anybody have experiences similar to mine? My w204 is from the year 2014 and I've been experiencing air con issues such as when the car is parked stationary under sun for long hours (4 hours onwards), the aircon will just blow hot air all the way until about 5-7 minutes (driving or idling).  If the car is parked under shelter for long hours, it will take 5 minutes before the cold air comes in. I've sent to cycle and carriage for diagnostic about 3 times now and they give me all sort of reasons like compressor fluid insufficient, just wondering anybody have a solution? 

The car air conditioning is a sealed system unless there is a very small minor leakage of the refrigerant

Since your car is no more warranty, why not get an outside workshop to have another opinion.

Cheers

I'm a MB Whore! :)

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  • 2 months later...

i was told by a aircon expert that the newer aircon system does not use clutch system to engage the aircon when you turn on the aircon switch. Newer aircon systems goes by pressure,ie, once you on the aircon, there is a pressure pump inside the aircon compressor that activate the gas to flow. If the pressure pump is no longer as efficient, it will take a longer time to build up pressure in the system and this will delay the aircon 's function.

 

I was driving a c class and was told the pressure pump can be replaced at about $250.00

 

hope this helps.

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  • 3 months later...
On 7/29/2020 at 8:21 PM, level z said:

i was told by a aircon expert that the newer aircon system does not use clutch system to engage the aircon when you turn on the aircon switch. Newer aircon systems goes by pressure,ie, once you on the aircon, there is a pressure pump inside the aircon compressor that activate the gas to flow. If the pressure pump is no longer as efficient, it will take a longer time to build up pressure in the system and this will delay the aircon 's function.

 

I was driving a c class and was told the pressure pump can be replaced at about $250.00

 

hope this helps.

Hi, mind sharing which aircon expert shop you went to?

thanks

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