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   W203 C Class
     Air Cond EC light on
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RAD
Posted on: 2011/10/6 0:44
Home away from home
Joined: 2011/8/25
From: Batu Caves, Selangor
Posts: 193
Benz Model: W203 C200K 6-Spd M
Message:
Air Cond EC light on
Salam,

My W203 AC is playing up again. I serviced it prior to shipping the car back to Malaysia in July. Had the gas/oil refilled and EC light reset. AC was working fine.

Today, the EC light came on and didn't want to go off again. So AC compressor did not kick in, i.e. no AC.

I need to get this recurring problem sorted out. Do you guys know of any good and dependable Mercedes A/C specialist in KL with a STAR machine. (must be reasonable price also lah :))

Cheers and Wassalam.

Gan
Posted on: 2011/10/8 22:56
Certified Benzitos
Joined: 2008/12/5
From: Johor Bahru, Johor, Malaysia.
Posts: 1772
Benz Model: W202 , W204 . E90
Message:
Re: Air Cond EC light on
Quote:

RAD wrote:
Salam,

My W203 AC is playing up again. I serviced it prior to shipping the car back to Malaysia in July. Had the gas/oil refilled and EC light reset. AC was working fine.

Today, the EC light came on and didn't want to go off again. So AC compressor did not kick in, i.e. no AC.

I need to get this recurring problem sorted out. Do you guys know of any good and dependable Mercedes A/C specialist in KL with a STAR machine. (must be reasonable price also lah :))

Cheers and Wassalam.



Bro ... this EC light ... light-up in the AC panel .. ..

basically ... was the AC System ... Warning Light ...

The AC Compressor will not Cut-in .. if the light ON

Manually Activate ... EC ... Economy Mode

If The EC light ON itself ... could not be switched OFF
... A Warning Inform To The Driver ...
... AC System Something Goes Wrong ...
... AC System Emergency Mode ...

need a Diagnostic Tester (STAR) To Check ...

probably ...
Refrigerant (AC gas) Level LOW ... System Leaks
Temperature Sensor Faulty ... Message Breakdown

A Common AC Problem ... For Model W203 ...
~~ The Evaporator (Cooling Coil) Temperature Sensor
~~ The Refrigerant (AC Gas) Pressure Sensor
~~ The AC Compressor Unit ... Pulley Cracked

hope this helps , ...


----------------


MB Auto Garage
No 8 , Jalan Permas 9/2 ,
Bandar Baru Permas Jaya ,
81750 Masai , JOHOR .
(T) 07-3822 322 (F) 07-3866 502
(E) ganchinleong@yahoo.com
GAN CHIN LEONG
H/p : (012) 708 2660

RAD
Posted on: 2011/10/10 11:39
Home away from home
Joined: 2011/8/25
From: Batu Caves, Selangor
Posts: 193
Benz Model: W203 C200K 6-Spd M
Message:
Re: Air Cond EC light on
Quote:

Gan wrote:
Quote:

RAD wrote:
Salam,

My W203 AC is playing up again. I serviced it prior to shipping the car back to Malaysia in July. Had the gas/oil refilled and EC light reset. AC was working fine.

Today, the EC light came on and didn't want to go off again. So AC compressor did not kick in, i.e. no AC.

I need to get this recurring problem sorted out. Do you guys know of any good and dependable Mercedes A/C specialist in KL with a STAR machine. (must be reasonable price also lah :))

Cheers and Wassalam.



Bro ... this EC light ... light-up in the AC panel .. ..

basically ... was the AC System ... Warning Light ...

The AC Compressor will not Cut-in .. if the light ON

Manually Activate ... EC ... Economy Mode

If The EC light ON itself ... could not be switched OFF
... A Warning Inform To The Driver ...
... AC System Something Goes Wrong ...
... AC System Emergency Mode ...

need a Diagnostic Tester (STAR) To Check ...

probably ...
Refrigerant (AC gas) Level LOW ... System Leaks
Temperature Sensor Faulty ... Message Breakdown

A Common AC Problem ... For Model W203 ...
~~ The Evaporator (Cooling Coil) Temperature Sensor
~~ The Refrigerant (AC Gas) Pressure Sensor
~~ The AC Compressor Unit ... Pulley Cracked

hope this helps , ...


Hi Dr Gan,

Thanks for your response. I have got the a/c going again at a local garage. Had the a/c system vacuumed and regassed. Reset on STAR and it was working again. I have been asked to drive around for a few weeks. If the same problem recurs, then it could be any of the above.

Dr Gan, another question for you. To access the evaporator temperature sensor, must we remove the dashboard to replace it (like the evaporator itself) or can it be accessed from under the bonnet?

This morning I can smell faint smell (gas) from front of my car. I suspect there's a leak. So I hope its not the evaporator itself.

If only I were in JB, I'd pop in for a full check up with G-Performance. Cheers!!!
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