Does the Temperature Selector on the Automatic Climate Control illuminate when the lights are turned on? On my '88 300E the pushbuttons will light up when selected, but the Temperature Selector (wheel) does not light up. If there is a light bulb behind the Temperature Selector how do you access it to make a replacement? I have removed the wood panel to gain access to the ACC and can not find any obvious access to the inside of the ACC to locate the bulb. This is not a big deal, but if it should light up I would like to replace the defective bulb.

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• 2001 E320