The car should run fine without recoding. Depending on the model year, the battery will not charge correctly if it is not coded correctly. The newer Audi's (and VW and Porsche) manage the battery charge much more carefully to get much better life out of the battery, so getting the car recoded to the specific battery you installed is still the best way to go.
Audi A6 Allroad
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Maintenance & Repair
When I drive in the rain my car pulls slightly to the right. But only when it rains. And when I make any sharp turns it feels like my front tire gets stuck
2004 Audi A4 1.8T Turbo Sedan FWD
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Maintenance & Repair
I have a 2003 Audi A4 Quattro 1.8L turbo. Recently I had the water pump replaced due to coolant leaking out. Now while driving, the temperature gauge shows normal but after 15 to 20 minutes the te...
2003 Audi A4 1.8T quattro Sedan AWD
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Maintenance & Repair
I've disconnected the battery, replaced it, jump start and nothing is working I have full power on the electronics, horn, and lights and it won't start?
2003 Audi A4 1.8T quattro Sedan AWD
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Maintenance & Repair
I tried pumping the gas a few times and turning the key and notice a small amount of smoke. I seems to possibly be coming from the passenger side valve cover. I also change my spark plugs before all t...
1997 Audi A4 2.8 quattro Sedan AWD
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Maintenance & Repair
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