Hello zzagalo
Information from EASA regarding Part 66 requirements can be found here:
http://www.acac.org.ma/ar/Workshop%2...%20Part-66.pdf
An extract from this document:
2. for category B2 and subcategories B1.1 and B1.3:
i. five years of practical maintenance experience on operating aircraft if the applicant has no previous relevant
technical training; or
ii. three years of practical maintenance experience on operating aircraft and completion of training considered
relevant by the competent authority as a skilled worker, in a technical trade; or
iii. two years of practical maintenance experience on operating aircraft and completion of a Part -147 approved
basic training course.
As far as i understand it, taking only the EASA B1 theory modules with any Part 147 training provider does not constitute completion of a Part -147 approved basic training course. These courses typically contain elements of practical and hands on training. If you are currently enrolled on a basic training course with a part 147 training organisation, they should be able to tell you if theory exams sat outside their training organisation are valid towards the course.
Hope this helps
ZESA