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