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