Porsche option code M657 (991.1 911)
On the Porsche 911 991.1 (2012-2016), option code M657 means: Standard power steering (no speed-sensitive assist).
CodeM657also written 657
CategorySteering
Code typeM-code
Model / years911 991.1, 2012-2016
Confidencemedium confidence
About M-code codes
M-codes (“Mehrausstattung”) are the classic Porsche factory option numbers printed on the build sheet, window sticker and the option sticker in the service book or front trunk. On a 991.1 you will usually find M657 on the option sticker in the service/maintenance booklet, the front-trunk data label, or the original window sticker (Monroney label in the US).
Confidence “medium”: one solid public source; plausible but not double-checked. Option meanings can differ between markets and model years.
M657 on other Porsche generations
- 718 Boxster/Cayman 982: Standard power steering
- 911 996: Standard power steering
- 911 991.2: Standard power steering
- Boxster 986: Standard power steering
- Boxster/Cayman 981: Standard power steering
- Panamera 970: Standard power steering
Related steering codes on the 991.1
- M431 Multifunction steering wheel
- M460 Steering wheel variant (round hub/sport); on 991.2 a wheel option
Verified against: www.kindel.com. Description is our own wording.
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