A/C Problem or Not?

jetta02awp · 07-13-2012, 09:28 PM

Hey Everyone,

I got my 02 coupe on Monday and the last couple days it seems that the A/C is not that cold at idle. Today I confirmed this by using a temperature probe in the center vents. It was 90 degrees outside today and at idle the temp would only drop to around 70 degrees and then when I start driving it drops down to 48-50. Then if I stop the temp will rise back up to around 58-60 until I start moving again.

I've been searching online since I got home from work and found that a cause of this is air not being passed over the condenser. The radiator fan is working and the engine is not overheating. I am at a loss with this.

I checked the freon pressure and everything is good there.

Does this sound normal or could there be something wrong?

I was reading all different car forums about this issue and a post on a honda forum said "if you think your a/c sucks, try a german car" My jetta's a/c is the not greatest but works better than this.

Thanks in advance for any help.

-Nick

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Peydidy · 07-14-2012, 01:49 AM

My AC is all messed up too. Mine just doesn't blow cold though. Trying to figure it out too, good luck

LILBENZ230 · 07-14-2012, 04:02 PM

Is it as simple as needing a recharge? I don't know the German car joke.. All my Hondas had sucky A/C systems but my W203's is frigid and works fine.

Now the BMW is another story.

jetta02awp · 07-14-2012, 05:26 PM

Quote:

Originally Posted by LILBENZ230

Is it as simple as needing a recharge? I don't know the German car joke.. All my Hondas had sucky A/C systems but my W203's is frigid and works fine.

Now the BMW is another story.

I checked the pressure and its right where it should be.

my jettas ac has never been ice cold since it was new.

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ncmudbug · 07-14-2012, 08:29 PM

Quote:

Originally Posted by LILBENZ230

Is it as simple as needing a recharge? I don't know the German car joke.. All my Hondas had sucky A/C systems but my W203's is frigid and works fine.

Now the BMW is another story.

When I got my 320i way back when, there was a story about BMW air conditioning.

The dealers kept getting complaints but the A/Cs checked out fine. They kicked it up to the next level and they couldn't find any problems either. Finally they got so many complaints they went to the factory and when they'd heard enough, they sent to engineers to find out what was going on. They picked them up in Dallas in the August - in a 5 series with broken/disabled rear electric windows. When the engineers asked the driver to turn up the A/C - and it was going full blast - they realized they really did have a problem!

I would hope they are better now!

LILBENZ230 · 07-14-2012, 08:48 PM

It is adequate, barely, in the black/black 1-series. The Mercedes is better. The Lexus might be the worst one, though.

Glyn M Ruck · 07-14-2012, 11:03 PM

The Benz should achieve 6 to 8 degrees celcius at the vents idling. Any colder than that & it will freeze the evapourator & you will loose airflow.

jetta02awp · 07-16-2012, 09:35 PM

So, tonight on my way home from work, it was 90 degrees and the ride home was not comfortable at all. Turns out I was misreading my home/auto pressure gauge. It turns out it was a bit low. I put a 12oz in and it was running at 40 degrees at 90 ambient temp with high humidity. Hopefully the leak is very small and it will last the summer.

07-14-2012, 01:49 AM	#2
Peydidy MBWorld Fanatic! Garage is empty, add now Join Date: Dec 2011 Location: San Francisco Bay area Posts: 1,483 Drives: 2006 CLK500 Coupe,2005 C230 Kompressor SS, 2002 C230 Kompressor coupe, 2010 Mazda 6, 2008 Mazda 3	My AC is all messed up too. Mine just doesn't blow cold though. Trying to figure it out too, good luck __________________ Peydidys CLK500 Coupe Thread: http://mbworld.org/forums/clk-class-...ml#post5407677 Peydidys Pewter C230 Sedan Thread: http://mbworld.org/forums/c-class-w2...ml#post5099624 Peydidys C230 Coupe Thread: http://mbworld.org/forums/c-class-w2...230-coupe.html PARTS FOR SALE: http://mbworld.org/forums/parting-ou...arts-sale.html

07-14-2012, 04:02 PM	#3
LILBENZ230 MBWorld Fanatic! Garage is empty, add now Join Date: Jul 2008 Posts: 6,145 Drives: 2011 C300	Is it as simple as needing a recharge? I don't know the German car joke.. All my Hondas had sucky A/C systems but my W203's is frigid and works fine. Now the BMW is another story. __________________

07-14-2012, 11:03 PM	#7
Glyn M Ruck Super Moderator 1965 Jaguar 3.8 S Type Join Date: Jun 2008 Location: Llandudno, Cape Town, South Africa Posts: 15,862 Drives: late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires	The Benz should achieve 6 to 8 degrees celcius at the vents idling. Any colder than that & it will freeze the evapourator & you will loose airflow. __________________ Llandudno, Cape Town, South Africa

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07-14-2012, 08:48 PM	#6
LILBENZ230 MBWorld Fanatic! Garage is empty, add now Join Date: Jul 2008 Posts: 6,145 Drives: 2011 C300	It is adequate, barely, in the black/black 1-series. The Mercedes is better. The Lexus might be the worst one, though.

07-16-2012, 09:35 PM	#8
jetta02awp Member Garage is empty, add now Join Date: Jul 2012 Location: Eastlake, OH Posts: 102 Drives: 2002 C230 Coupe Kompressor 6mt	So, tonight on my way home from work, it was 90 degrees and the ride home was not comfortable at all. Turns out I was misreading my home/auto pressure gauge. It turns out it was a bit low. I put a 12oz in and it was running at 40 degrees at 90 ambient temp with high humidity. Hopefully the leak is very small and it will last the summer.

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