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What Does the Error Code "Code 35" Mean on an Opel Astra's Instrument Panel?

Model: Vauxhall Astra Astra J - Years 2009-2016
Part: Warning light – error code

When the error code "Code 35" activates on your Opel Astra's instrument panel, it indicates that the battery in the electronic key needs replacing. To replace the key battery, start by unclipping and removing the rear cover of the key. This will give you access to the exhausted battery. Next, extract the battery from its housing, and you will have completed the removal. To install the new battery, simply follow these steps in reverse, and you will have finished the replacement.

Updated on 12 April 2026 by ScegliAuto

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How to Open the Fuel Filler Cap of the 2020 Hyundai Tucson

The 2020 Hyundai Tucson has two methods for opening the fuel filler flap. Both methods can only be used if the key has been removed from the ignition and the engine is off. The first method involves removing the key from the ignition and keeping all the car locks open, then go to the flap and press it. This will open the flap. The second method is to stay in the car, remove the key from the ignition, and then press the fuel filler release button located on the left door.

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