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