I would like to choose a full-time MBA to begin between September '20 and January '21. I applied to WHU, ESMT and FSFM. I would be expecting to get admission in at least 2 and I would like to start the decision process, since I will need to move fast because of VISA and scholarhips/loans, once I receive the admissions results. I am from Latin America, 31 years old and my goal is to find an MBA level role to stay in Germany afterwards.

I have a background in Project Management in Engineering and Manufacturing with 7 years of experience in the automotive industry. I have a B2 Goethe Certificate in German Language and I would look into reaching a C1 level by the end of the MBA. After the MBA, I would like to change function within the automotive industry or perhaps moving to the technology industry.

What school would you recommend to attend? It is important for me that the university has a good reputation within local German employers, but also that the name is recognized worldwide as much as possible, for example, in case I move to another country. The career development is another important factor.

Does it matter that FSFM and ESMT are tripple-accredited and WHU is not accredited by AMBA?

Thank you in advance for your inputs!

It doesn't matter that WHU does not have AMBA accreditation. 
ESMT places fewer than 5% of its MBA into manufacturing, reflecting its location in Berlin, very far from the automotive industry. It's a school for consulting and tech. 
Frankfurt, traditionally a banking school, doesn't have the deep links in manufacturing sector. It's focus is more on services, including healthcare but it does get auto and component firms at its career days https://www.frankfurt-school.de/en/home/newsroom/events/career-day
WHU and Mannheim moreso are better choices. They are more likely to serve manufacturing and logistics.

+1 for Mannheim. You're also more likely to improve your German there, in a less international city and on a German-speaking campus rather than in an office park. 

It doesn't matter that WHU does not have AMBA accreditation. 
ESMT places fewer than 5% of its MBA into manufacturing, reflecting its location in Berlin, very far from the automotive industry. It's a school for consulting and tech. 
Frankfurt, traditionally a banking school, doesn't have the deep links in manufacturing sector. It's focus is more on services, including healthcare but it does get auto and component firms at its career days https://www.frankfurt-school.de/en/home/newsroom/events/career-day
WHU and Mannheim moreso are better choices. They are more likely to serve manufacturing and logistics.

+1 for Mannheim. You're also more likely to improve your German there, in a less international city and on a German-speaking campus rather than in an office park. 

WHU seems the obvious choice then.