martythebrit

Does anyone per chance have a picture of where this port is located?

I can't for the life of me find it...

Thanks,
Marty.

Plutoe

Forget about the ports right now----do the two AC self tests(see stickies) and post the data and you will get loads of help and and we all will get entertained.

armaniE55

That's not really helping the OP is it?

Sorry OP we have a non W210 owner here on the forums shaking things up a bit. Just ignore him. Are you not getting cold air?

See Pic

armaniE55

@Plutoe

Please watch your grammar. I'm getting dumber every time I have to read one of your post. Run on sentences like it's going out of style and you used the word "and" 3x in one sentence. Are you 12?

Rich's 97 E420

Checking the charge is probably the first thing I would do! and determine if the compressor is engaging properly, before I tried to figure out a bunch of codes.

The nice thing about the 134a gauges is you determine the ambient temp and the gauge will tell you when to stop adding refrigerant, but remember it is best left to the experienced as you can easily over charge the system, and the compressor will cycle off and on through the high pressure switch.

If all of your 134a has leaked and there is no pressure at all in the system then you will need to find the leak. If possible. Purge and evacuate with a vacuum pump,

the A/C pro product has worked well to help re-condition the seals in my E420.

Hope this helps,

martythebrit

Found the port, added more R134a and everything is good now.

Thanks!