I need to reset to factory settings as the A/C and blower not working. suspect that manual replacement of battery a year ago might have messed up the factory settings

Ok, then… what do you mean by “factory settings”? And have you had a repair shop, or an Audi dealer check this for you? Replacing a battery in a Q5 is the same as any other car. Take it out, put in new. No “programming” of the car is required. The radio may need a security code, but that’s it. ht…

I just finished my state inspection at a repair shop They could not repair the air conditioning/ heater and blower over a two day period Their conclusion was to go to an AUDI shop to reset the settings possibly because when I replaced the battery two years ago manually I may have offset the settin…

Actually, you may have confused the computer at the time you replaced the battery, but after driving for 2 years it will have re-learned everything it needs to know’. Normally don’t take more than 50 miles of driving. Even using a memory saver when changing a battery can be fatal to the battery be…

[image] kurtwm1: Even using a memory saver when changing a battery can be fatal to the battery because it can be overcharged. I don’t think this is true…most memory savers that plug in are powered by a 9V battery

Well, it is true. Some late model cars, i.e. BMW, Audi, Mercedes and others, the computer keeps track of battery usage, current condition of the batter and other things. The computer regulates the output of the alternator and accordingly makes adjustments. A battery with minimum voltage/amps and th…

[image] kurtwm1: lots of information on Google. And not all of it is correct.

true, this site is a prime example.

2009 Audi Q5 - factory settings to restore AC

Maintenance/Repairs

Tester July 27, 2020, 8:01pm 4

You may be right.

BMW, Audi & VW (various models) Disconnecting the battery requires numerous module relearn procedures which can take up to several hours with a factory scan tool

Tester

1 Like

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2009 Audi Q5 - factory settings to restore AC

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