2005 Mercedes C-Class Owner's Manual - Page 204

Controls in detail Audio system ! If you affix stickers to the CDs, they can become warped due to the heat that develops in the CD drive or CD changer. In certain situations, the CDs can then no longer be ejected and cause damage to the drive. Such damage is not covered by the Mercedes-Benz Limited Warranty. Do not use CDs with an eight cm diameter, not even with a CD adapter. Attempting to play CDs with an eight cm diameter or playing such CDs with an adapter may cause damage to the CD drive. Such damage is not covered by the Mercedes-Benz Limited Warranty. Should excessively high or low temperatures occur while in CD changer mode*, CD TEMP will appear in the display, and the CD will be muted until the temperature has reached an acceptable level for the system to continue operation. The single CD player and the CD changer* play audio CDs. Tips on handling CDs Handle CDs carefully to prevent interference during playback. Avoid scratches, fingerprints and dust on the CDs. Do not write on CDs or apply any labels or other material to them. Clean CDs from time to time with a commercially available cleaning cloth. Never wipe the CD in a circular motion; instead, wipe it in a straight line starting in the center and moving outward. Do not use solvents, anti-static sprays, etc. for cleaning. Replace the CD in its case after use. Protect CDs from heat and direct sunlight. ! Your CD drive or CD changer has been designed to play CDs which correspond to the EN 60908 standard. You can therefore only use CDs with a maximum thickness of 1.3 mm. If you insert thicker data carriers, e.g. ones that have data on both sides (one side with DVD data, the other side with audio data), they cannot be ejected and will damage the drive. 202