2003 MB CLK 320 Convertible

FROM YOUR OWNER'S MANUAL: The rear head restraints are integrated in the roll bar.The roll bar will be automatically raised in an accident or in a potentially dangerous driving situation. A ratchet noise can be heard when the roll bar is automatically raised.The roll bar can be lowered again after an automatic deployment by pressing the upper half of the roll bar switch (for at least 8 seconds) until the roll bar drive mechanism audibly engages. Then press the lower half of the switch to lower the roll bar.If the roll bar was raised using the switch, it will be