2005 Mercedes-Benz E320 CDI Q&A

2005 Mercedes-Benz E320 CDI Question: Did they put on a larger recharge valve than previous 134a cars?

My a/c recharge kit hose fitting fits 1999 300D that is is a 134a system but seems too small for the 2005. Did they go to a larger fitting or something and should i be able to get an adapter or is this a MB only trick? -
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