AC capacity?

Powerstroke9773 · Mar 14, 2019

Did a search and could only find it for newer Jettas. Does anyone know how many of the small cans of R-134 I need to fill the system? All my Ford's and tractors have a sticker telling you but for the life of me I can't find it on this car???

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alex_tdi · Mar 14, 2019

Try searching for "VW fluid capacity" for your model year. 2003 came up to 700 +- 50g when I googled it.

Powerstroke9773 · Mar 14, 2019

Gentleman and a scholar sir

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VE1.9 · Mar 15, 2019

All mk4s take the same amount. It's on one of the stickers on the the core support. So anywhere between 750 and 800g.

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Powerstroke9773 · Mar 15, 2019

I don't know why but that sticker is not on this car I'll have to check my other when I get home.

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Rob Mayercik · Mar 15, 2019

If the core support's been replaced, that's probably why the stickers are missing.

drucifer · Mar 16, 2019

I think that works out to two twelve ounces or a twelve and a 14.

Powerstroke9773 · Mar 17, 2019

Well funny story it doesn't matter now anyways. The only reason I like to know about the capacity is so I don't buy to many cans and waste em once their opened. Now the cans are self sealing. So no issue I just filled it up til it was good on my gauges and done deal.

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flash52 · Mar 17, 2019

This will give you everything you need

www.vwparts.com/pdf/VW-fluid-capacity-chart-2004.pdf

turbocharged798 · Mar 18, 2019

Powerstroke9773 said:
Well funny story it doesn't matter now anyways. The only reason I like to know about the capacity is so I don't buy to many cans and waste em once their opened. Now the cans are self sealing. So no issue I just filled it up til it was good on my gauges and done deal.

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That is a dangerous way to charge these cars because of the variable displacement compressor. I find that two normal sized cans of R134A is almost exactly the right amount of charge.

Powerstroke9773 · Mar 18, 2019

If I'm watching my manifold gauges that's reading high and low side pressures what's dangerous about it? And that is what it took til everything read good on the gauges just under 2 cans.

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Nero Morg · Mar 18, 2019

These systems are easy to overfill, and the variable displacement pumps make the pressure readings change based off demand. I tried filling mine with cans once, only to have the ac not work right. Luckily at work we have an AC machine, so I evaced it down, and recharged it. Turns out it was half a pound overfilled.

Powerstroke9773 · Mar 18, 2019

Yeah I did a full evac, vacuum checked everything and then refilled til my gauges we're reading right. I guess we'll see

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AC capacity?

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