Aircon re-charging ports - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 08-27-2009, 09:50 AM Thread Starter
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Unhappy Aircon re-charging ports

I have a 1989 500SE and have dificulty identifying the recharging ports for the A/C sytem.
I have found one on the front of the car at the condesor, and another on a pipe leading from the comressor to the evaporator.
I am trying a retrofit and need to know which is the low pressure port.
Both ports identified apear be the same size,
I believe the system is empty, any ideas on how to verify this, and if necessary drain the old coolant.
Any advice welcomed.

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post #2 of 2 (permalink) Old 08-27-2009, 11:39 AM
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Welcome to BenzWorld. If you brought one of the off the shelf recharge kits, it will only connect to the low side of the system.

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