I have one of these and it works beautifully. All you need is a set of gauges (which you should have anyway) and a sufficiently beefy air compressor. No mechanical vacuum pump will get anywhere close to this price as well.

http://www.ntxtools.com/Merchant/merchant.mvc?Screen=PROD&Store_Code=01&Product_Code=ROB-34970&Category_Code=AC+Pumps

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
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