My 94 e320 wagon has a refrigerant leak. Injected dye, searched with the UV light.....Nothing conclusive except some specks around the bottom left side of condensor....Any one know if this system has some common leak problem areas I should examine more closely?

Thanks in advance

Unfortunately, evaporator. Lot's of threads on this top.

as ever
Paul

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as ever
Paul

1989 560SL
1987 300SDL
1987 300TD
1983 BMW 633CSi
1972 280SE 4.5

Thanks. Did a search and found helpful information. Other posts suggest checking for dye on top of transmission below the AC condensate drain(s). Where exactly are these drain(s) located?

Thanks.

J. M. van Swaay

The drains go straight down out the bottom of the HVAC housing, through the transmission tunnel, and onto the transmission itself. There are two drains, one each on the passenger and driver side.

I've attached a photo showing a 124 wagon with the dash and hvac housing removed. The red arrows indicate the drain holes through the transmission tunnel. For reference, the gold box rear of the drains (it's the accelerometer for the airbag) sits directly below the radio in a fully assembled car.

Good luck,

- JimY

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JMO but before you start tearing you car apart or taking it to the stealer I think I would try one of the sealers that are out on the market to save you doing that job! Did some reading on them and they sounded very promising! Have some good testamonials! I think before I tore apart my car to try and fix a leak I would give this stuff a try! Not that expencive! And no I do not sell the stuff ! just passing on the info! Check out this site !

# "We have installed Super Seal Plus in over 20 A/C systems in various makes and models, including Mercedes Benz. Super Seal Plus has worked very well for us. It is a great product!"

Smokie

http://www.dugcosupply.com/supersealpro.htm

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Thanks for the picture. By the way, how long did this project take? I have the service manuals--looked them over and the job looks doable but time consuming. About the stop leak--certainly an option to consider, but not without risk. Some AC techs will not work on a system serviced with stop leak because it can be very damaging to reclaim equipment. Also, in some cases the stop leak stuff can gum up compressors, expansion valves, filters..... Would only consider stop leak for an evaporator, and then only if you are willing to risk having to later not only replace the evaporator but other components as well. If there are other considerations, I'm all ears. (or eyes in this case as I'll be reading them on a computer screen)

Thanks for some very helpful replies.

J. M. van Swaay