Here is the full list of all 63 Car Detailing Simulator achievements.
Wash 500 cars
Fix windows
Fix wheels
Fix body
Fix ufo
Find turtle
Make money
Wash 100 cars
Overtime
Return dirty
Stairs ride
Finish game
See credits
Get 15 rep
Wash 50 cars
Buy auto salon
Buy all upgrades
Use sponge
Pressure washer time
Get 10 rep
Water computer
Use automatic polisher
Sell lower price
Use paint meter
Use small brush
Find unique
Buy all toolkits
Car 1 minute
Wash 10 cars
Buy shed car
Repair garage
Get 5 rep
Buy garage
Long session
Fix trash
Use trash can
Buy interior toolkit
Wash 1 car
Fix seat
Use sand paper
Use soft brush
Use wide brush
Buy wheel toolkit
Buy seat toolkit
Buy garage upgrade
Buy window toolkit
Get 2 rep
Fix scratches
Use hand polisher
Use flashlight
Buy finish toolkit
Open memory
Take photo
Buy body toolkit
Buy one toolkit
Use vacuum
Finish tutorial
Use window spray
Use seat spray
Use rag
Use pressure washer
Buy lights toolkit