Not sure what the syrup stuff is? But the lime scale can be removed with a light paint polish/cleaner (like Zymol) or if really bad a swirl/scratch remover. I personally like 3M products, but to each their own.
http://www.peachparts.com/diy/detailing/detailing.php?location=15

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1999 E300DT (131,800) 154,000 Black on Black SOLD

2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom)
47,000mi

04 VW TDI Passat 80,000mi
(Techno)

How to eliminate oil dependency through market-driven approaches.
“We could cut oil use in half by 2025, and by 2040, oil use could be zero,”
The Sound of Diesel Speed
Ode to MB