Question about Audi A4

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I need to know the correct battery replacement for a 1998 A4 switchblade key/ remote entry. A CR2032, which has been suggested DOES NOT WORK.

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  • sbaumann50 Oct 12, 2010

    I've found that a CR1620 is the correct battery for the 2-button remote/switchkey provided with my car. I've installed two of these with perfect results. The procedure for "introducing" the key to the car I use is considerably easier than the one you present.
    Neither 2016 nor 2025 will work since they're too large in diameter to even fit into the "compartment" for the two batteries in the remote.
    There may be a different 3-button remote that was provided with some A4, but for the most often supplied 2-button remote, 2016, 2025 and 2032 will not fit.
    Do I get a prize for finding the answer myself?

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Your remote requires 2 (two) CR2025 batteries, u can buy th3em here, go to link.

http://www.keylessride.com/order/relateditems.asp?vid=56146&lbfix=yes&make=Audi&remoteyear=1998&model=A4&frid=65B3BB3E

Posted on Oct 11, 2010

  • yadayada
    yadayada Oct 11, 2010

    also u will need to reprogram the remote, here are the instructions



    1) Unlock all doors
    2) Insert a spare key in the ignition and turn to the "accessory" position
    3) Roll down driver's window
    4) While standing outside, and with all doors closed, insert main fob (with new batteries) in door then twist to lock and release, making sure to leave fob in door
    5) Reach inside and hold interior "unlock" button down for 10 seconds (this is why you keep the window open!)
    6) Press the fob's "unlock" button once - the parking lights should flash once
    7) Remove the fob and the spare key and you are done

  • yadayada
    yadayada Oct 11, 2010

    I don't mean to confuse but there were more than one style of remote key FOB used in 1998 for the A4, the other remote uses the CR2016 as well. I think yours will be the CR2025 but keep the other number in mind, the CR2016 is thinner.

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