I started by looking at the selling prices of similar cars. The most relevant data point is the 2013 Audi A4 Turbocharged I4 2.0L with the same variant and good condition, sold for AED 21500 on 18 Sep 2024. This car has lower mileage than the target car. The 2015 Audi A4 2.0 I4 with the same variant and good condition sold for AED 41000 on 7 Feb 2024, but it is a newer model with significantly lower mileage. The 2015 Audi A4 25 TFSI Turbocharged I4 1.8L with average condition sold for AED 25500 on 12 Oct 2024, but it is a different variant. The accepted offers for 2013 models with higher engine capacity were AED 22500 and AED 27000, but these are for V6 engines. The listed price for a similar 2013 model was AED 22000, but it was delisted. Considering the target car's average condition and higher mileage, I estimate the price to be slightly lower than the AED 21500 selling price of the similar 2013 model in good condition.