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Q: Battery on 2002 Volkswagen Passat W8

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
When switching out the battery on a W8 do you need to reprogram the computer settings ? I have been told NO and I have been told YES...which one is it?
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It is a car with a lot of "fancy electronics". There is a memory saver that plugs into the 16 pin OBD diagnostic socket under the dash that saves computer memory. See if you can find one on line, don't confuse the device with the one that is sold that plugs into the cigarette lighter of your car as cigarette lighters are not live on many cars when the ignition key is off.
This link is a fancy one
http://www.summit-equipment-outlet.com/schumacher-obd-memory-saver.html
This link
http://www.walmart.com/ip/Schumacher-OBD-Memory-Saver-Cable/15140207?sourceid=1500000000000003260530&ci_src=14110944&ci_sku=15140207
is one that would be a cheaper alternative but needs its end modified and attached to another 12 volt battery (extend the cables put two alligator clips on it and attach it to another car battery in your driveway. plug in to connector, keys off drivers window open, doors all closed.
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