Owner's book · not a shop
Know the car. Then the window. Factory specs in plain English — don't authorize until you can say this at the counter.
RO glossary
Beginner · short stepsExpert · spec · code · mm
Look up the slang on the ticket. Read the trap on that line.
Invoice slang: LOF, MPI, R&R, NTF, shop supplies, 'while we're in there.'
Invoice slang
Try cabin-filter, LOF, or flush
ticket
The complaint as written on the RO. This is the job. Everything else is extra.
Say · Read this line. If it is wrong, they will 'fix' the wrong car.
A vague 'check brakes' becomes an MPI upsell. Write the symptom: when, speed, noise.