Exhibit 5.1

Deloitte LLP

Bay Adelaide East

22 Adelaide Street West

Suite 200

Toronto ON  M5H 0A9

Canada

Tel: 416-601-6150

Fax: 416-601-6610

www.deloitte.ca

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in this Registration Statement on Form F-10 of our reports dated March 9, 2017, relating to the consolidated financial statements of Magna International Inc. and subsidiaries, and the effectiveness of Magna International Inc. and subsidiaries’ internal control over financial reporting, incorporated by reference in Magna International Inc.’s Report on Form 6-K of Magna International Inc. dated March 30, 2017.

/s/ Deloitte LLP

Chartered Professional Accountants

Licensed Public Accountants

Toronto, Canada

August 15, 2017