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