710 or 510. Don’t know what 730 is. 710 is what I use now. Best because built in WiFi for update and works with new cars.

Coolant sensor o-ring leak can be stopped with a couple wraps of Teflon[emoji769] tape


–awr–

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)