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Replacement of Cabin Light Bulb

Model: Mercedes Classe C W202 - Years 1993-2000
Part: Interior dome light bulb

The cabin light bulbs are generally T11 C5W (36 mm or 39 mm), also known as festoon bulbs, and can be replaced with LED ones.
It is recommended to choose LED bulbs with built-in resistors to avoid triggering the malfunction indicator on the dashboard.
To replace the front cabin light bulbs, simply pry off the cover with your finger, remove the old bulb, and insert the new LED bulb: if the new bulb does not light up immediately, try rotating it 180° to reverse the polarity.
Inside the rear hood, you can install an external LED light powered by the original socket (pry it off sideways with a screwdriver).
Finally, to remove the central cabin light, simply pry with a medium-sized flathead screwdriver in the designated slot on the side.

Updated on 3 February 2026 by ScegliAuto

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