I have consolidated below list of English MBAs in Germany for non-business graduates with a limited budget, and trying to order them in terms of strong networks and reputation, job prospects and salaries of graduates in Germany.
I know the first advice would be to study DSH and pursue a German program, but this is not possible for me for many reasons, I will study the German language after (or while) taking the MBA.

HHL Leipzig Master of Business Administration (MBA) 4 semesters 29,000 €
CBS Cologne Full time International Management MBA 4 semesters 25,000 €
Pforzheim MBA International Management 4 semesters 12,000 €
Offenburg MBA International Business Consulting (IBC) 3 semesters 10,000 €
Furtwangen Full time MBA 3 semesters 10,000 €
Esslingen MBA International Industrial Management 3 semesters 4,200 €
Georg Simon Ohm MBA for non-financial graduates 3 semesters 18,000 €

Obviously HHL, CBS and GSO are more expensive but they have many options for financing and scholarships.
I excluded all options with tuition fees higher than 30 K
Please feel free to suggest any similar programs that I may have missed.

A little bit about me:
Bsc. Engineering
5 years work experience
TOEFL ibt 110
GMAT 640
German A2

[Edited by Nour Douba on Jan 26, 2016]

Given that you are looking at two-year MBAs, why not take half a year to get to C1 German and then take a one year MSc in German at a better school?

Not possible in my case for visa-related restrictions on my mobility, I must obtain a University admission (not provisional admission).

Are you saying that one year German MSc is better than any of the above listed MBAs followed by extensive language courses?

[Edited by Nour Douba on Jan 27, 2016]

I am saying that if you want to work in Germany that an MSc from a great school is better than an MBA from a weak school.

These usually only accept graduates of business or management, while I am from an Engineering background.
Examples:
https://www.fau.eu/study/prospective-students/degree-programmes/international-degree-programmes/mibs/
http://wiwi.uni-mainz.de/311_ENG_HTML.php
http://www.bwl.uni-mannheim.de/en/programs/master_programs/mmm/application_and_admission/
http://mib.htw-berlin.de/

There are five German MSc degrees in the FT MSc ranking, and two don't require relevant degrees. http://rankings.ft.com/businessschoolrankings/masters-in-management-2015 I guess that shows that there are options even a the MSc level. However, my point isn't just that a good school is better than a bad school, but that a degree taught partly or fully in German will be better than one taught in English if you want to work in Germany.

Mannheim asks only for 36 ECTS in management. That's one semester. Many engineering students do have some management courses. It's also possible to study, for example as a freemover, for a semester at many places across Europe to pick up the credits you'd need.

Pfrozheim has a one semester, 36-ECTS, option leading to a certificate. https://www.hs-pforzheim.de/De-de/Wirtschaft-und-Recht/Zusatzqualifikationen/ISP/Information_for_Incoming_Exchange_Students/ISP-Downloads/Documents/ISP_Brochure_2015_2016.pdf

[Edited by Duncan on Jan 27, 2016]

Your point is made clear.
I didn't want to bore you with my life story but I already tried obtaining visa to study German language and failed, and it's impossible to go around Europe for credits since I don't have a fancy nationality to make my life easy plus I'm on a tight budget, so I am trying to find the best alternatives.
I would appreciate it if you have any comment on my original question.

There are several other English-language MBAs in Germany under your price point: Saarland, CCDS Berlin and Hof are the only really notable ones.