Would you let the car sit for awhile (like overnight) and then measure the high and low side pressures with the engine still off and then start it, turn the AC to max and measure it again. Check to make sure your new fan is running.

Do you have a sense of how much refrigerant you added? The total capacity is on a sticker in the engine bay - I recall it as 16 oz (440 grams) total.

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David.X5
2001 X5 4.4i Sport
SOLD! at 160k miles