SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: R129 What the heck is this?????????

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Old Feb 25, 2013 | 09:37 PM
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number_one_c55's Avatar
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2017 G63
Question R129 What the heck is this?????????

Here is whats been happening.

For the past 6 months my AC has not been working. I charged it up during the summer it lasted for about 5 days then stopped working. Ive been driving it for the past 6 months without AC (rain, snow, sun, -2 degree weather and +10 degree weather) NEVER have the windows fogged up.

Im driving the car last week in, wasn't raining nice sunny day put the heater on and noticed the windows were fogging up very badly on the passenger side and rear window.

Now its when I have the defrost on pointed at the windshield I get lots of heat but the windows fog up so bad I cannot see out the windshield.

On the weekend I was cleaning out the car, cleaning the windows and vacuuming it when near the feet vents were there is a very strange very oily liquid coming out...NEVER seen this before. Any one have any ideas?!!!

See attached photos.
Attached Thumbnails R129 What the heck is this?????????-129drivers.jpg   R129 What the heck is this?????????-129passengers.jpg  
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Old Feb 26, 2013 | 10:44 AM
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97R129-01W163-94E320-93500E
Looks like your front top hydraulic cylinders are leaking.
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Old Feb 26, 2013 | 01:35 PM
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Originally Posted by edcarls
Looks like your front top hydraulic cylinders are leaking.

it looks like my AIR CONDITIONING IS LEAKING - drain tubes back up and leak oil out the floor vents.
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Old Feb 26, 2013 | 02:47 PM
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chtaylor's Avatar
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1992 400E, 1997 SL500, 2009 R350, 1977 Ericson 32
Have you checked your cabin air filter to see if it's clogged or wet?
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Old Feb 26, 2013 | 03:09 PM
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Yes clean and dry I believe the evaporator drain tubes are plugged, will clean these tonight
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Old Feb 27, 2013 | 10:31 AM
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97R129-01W163-94E320-93500E
Originally Posted by number_one_c55
it looks like my AIR CONDITIONING IS LEAKING - drain tubes back up and leak oil out the floor vents.
The drain tube drains water condensation. Your stain looks like oil so I thought of hydraulic oil from the top cylinder. If your top cylinders are not leaking oil, then that oil stain could be your ac compressor oil coming from leaky condenser. Also, you don't need to shout I just want to help.

Last edited by edcarls; Feb 27, 2013 at 10:34 AM.
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