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