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How to Replace the Climate Control Bulb in a Mercedes A-Class

Model: Mercedes Classe A W168 - Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Part: A/C controls

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If the climate control buttons do not light up when the headlights are turned on, the backlight bulb is likely damaged. It is a glass incandescent bulb with a T5 base.

To replace it, first remove the climate control knob: grip it, possibly using pliers while protecting the knob with a cloth, and pull it outward. Once the knob is removed, the backlight bulb is immediately visible.

Use tweezers to extract it and then insert the new one. Test the functionality before reassembling the knob.


Updated on 26 February 2026 by ScegliAuto


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How to reset the tyre pressure warning light on the Kia Niro EV?

To reset the tyre pressure warning light on the Kia Niro EV, inflate the tyres until they reach the correct pressure value. This value is indicated on the sticker attached to the driver's door pillar. Once the tyres are inflated, turn on the instrument cluster to check that the warning light has completely disappeared from the display. If it is still present, you may need to drive for a few miles to ensure it disappears completely from the screen.

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by ScegliAuto

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