To estimate the price of the 2014 Mercedes C200 I4 1.8L Turbocharged Avantgarde, I considered the selling prices of similar cars. The closest match is the 2013 Mercedes C200 1.8L TC I4 with 215200 km sold for 26000 AED and another 2013 model with 225980 km sold for 24000 AED. Given the 2014 model year and the higher trim (Avantgarde), I adjusted the price upwards. The 2015 and 2016 models with 2.0L engines sold for higher prices (49000-75000 AED), but they have different engine sizes and are newer. Considering the mileage of 233502 km and the good condition, I estimated the price slightly higher than the 2013 models but lower than the newer models with different engines.