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How to Replace the Key Remote Battery on a Volkswagen Polo 9N

Model: Volkswagen Polo MK IV, Polo IV, Polo 4, MK 4, 9N - Years 2001-2009
Part: Key

In this video tutorial, you will learn how to disassemble and replace the battery of the key remote on a Volkswagen Polo 9N in simple steps. First, gather a flat screwdriver and start by prying open the slot of the key to remove the top cover and the key itself; then separate the remote into two parts to access the battery and the electronic board, as shown in the video. At this point, remove and replace the battery with a new one of the correct type (in this case, a CR 2032 3V); then reassemble everything!

Updated on 28 May 2026 by ScegliAuto

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How to Reset the Tyre Pressure Light on the Opel Grandland X

While driving, if you notice the tyre pressure warning light coming on, first check the actual inflation pressure of the tyres and, if necessary, restore the pressures recommended by the manufacturer. After restoring the correct pressures, you need to reset the warning light that has illuminated on the instrument cluster. To do this, locate the reset button on the lower central console. Press this button and hold it down for at least 3 seconds, after which the low pressure indication will turn off.

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