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I know this is a longshot but I have no idea what has been added to my car.
There is a knob and some kind of button drilled in next to the headlight knob to the left of the steering wheel.
There are a pair of lights in the instrument cluster just below each turn indicator.
Does anyone recognize these parts?
The knob was made by someone and could be something. The instrument cluster is described in the manual, take a look here: https://mb.clifton.io/r129/?ID=2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
