Bleach is very effective but very corrosive.

It is not R-12 used as a cleaner, but R-11. R-11 has a boiling point about 70 degrees and makes an excellent degreaser. It is one of the great refrigerants that was baned.

R-12 could never be used as a degreaser.

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1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

Thats why a very weak solution, over a longer time will reduce the amount of corrosion but also kill the bad guys. It never hurts to flush with distilled water (in a similar way to the bleach/water application) after the bleach has had time to get the job done. Either way be careful, bleach is a common cleaner but still dangerous.

This is an A/C system cooling capacity thread.

Please:
The MOLD issue/question is important, and it is sad to have this information lost inside another topic thread.

Here is a MOLD thread, where your answers will not be lost.

A/C system MOLD thread / links
http://www.peachparts.com/shopforum/diesel-discussion/157054-c-system-interior-mold-thread-links.html#post1202471

Well, thanks,

I've been advised, and so I'll try something simple to clear the "AIR". My other vehicles never had these problems and I'm inclined to be careful about what does in or under my dashboards. I saw a spray kit on Ebay for $15.00 with no chemicals to go with it. From what I could gather...this is a problem on some Toyota's.

A/C is still blowing 38F... for about 10 days since I recharged it. Not too sure how long it was neglected. I've now owned car since 3rd week in April. It seemed to be exceptionaly well kept.

Thanks to all respondents so far.

ron_of_orange 6:41 PDT
1992 300ce, 83k

Hey Diesel Giant. Has your flush and recharge job lasted? Can you give some updates? Thanks and this was an awesome write up.

Hey I'm new at this. Hope I'm not on the wrong post site. My 1999 slk 230 blows cold on driver side and hot on the passenger side. Just started doing this.And no its not the control knob as I've tried to adjust this to no avail. Is this a easy fix?

It is almost certainly a control problem or a bad duovalve. More likely the latter.

thanks for the reply but I'm really a novice, whats a duovalve and are they expensive to fix/

How I fixed my duovalve (W210), got my heat back and saved myself $250!
http://www.peachparts.com/shopforum/tech-help/242566-how-i-fixed-my-duovalve-w210-got-my-heat-back-saved-myself-%24250.html#post2077091

Double water valve (electromagnetic), used Up to 6/1999 W170 chassis
MB#001 830 32 84

Fastlane:
http://catalog.mercedesshop.com/item.wws?sku=W0133-1717494

You should fix that last link.

nice writeup. going to use the diesel giant page to give my dad something to look at while he fixes my odometer. he's a watch repair technician, so this should be second nature to him.

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