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