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