Quote:
Originally Posted by rmt6668
Is it expensive to top up? Out of curiosity where do they top up (connectors)? Is it a simple process?
Is there new law where certain refrigerant is now ban, is that impact on my w202 1994 model car?
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You don't just "top up". A machine (vacuum pump) sucks everything out, and then some. The a specific amount of refrigerant (usually measured by weight) is added to the system.
As mentioned, your car should use 134 - there should be a label in the engine compartment, confirming this.