Qualifications improve your chances; they do not gate the job. Level 3 is the most recognised.
Level 3 most recognisedOpen entry
Your route in
You can start without qualifications - direct entry/volunteering; a qualification improves your chances
1
Qualifications employers recognise (Level 3)
Any of these strengthens your application.
Enter via the Vehicle Damage MET Technician Level 3 apprenticeship and progress to senior/master technician; the exact route varies if the role instead means vehicle upholstery trimming or assembly-line trim.