VXDIAG Porsche Piwis3 V37.900 coding programming works

Porsche Piwis3 V37.900 is confirmed to be able to working with VXDIAG Porsche hardware and only VXDIAG Porsche Piwis3 V37.900 can work with Porsche after 2017 year, piwis2 can’t do.


Porsche diagnostics: confirmed

Porsche coding / programming: confirmed

IMMO & Key online: confirmed


Basic info:

Software version: newest V37.900 (the version in the following images is V37.250.020)

Language: Deutsch, English (GB), US English, French, Italian, Spanish, Japanese, Chinese, XX, Russian, Portuguese, Dutch

Update: Piwis II can’t update to Porsche Piwis III V37.250.020, because they have the different hardware, the Piwis III has the higher demand to the computer resolution.


Porsche Piwis3 V37.900 using experience:

Porsche Piwis3 menu: diagnostics, applications, tools and system.




Porsche Piwis3 Diagnostics and coverage

Porsche Piwis3 engineering

– Porsche Piwis3 Wiring diagram

– Porsche Piwis3 Team viewer


Part 1: Porsche Piwis3 Diagnostics

Connect to the vehicle (automatically)

Connect to ECU (manual selection).



Porsche Piwis III is compatible with Porsche 911, Boxster, Cayman, Cayenne, Panamera (971 & 970), Macan, 918 Spyder etc.

Porsche Piwis III coverage:

All Porsche from 1998-2018:
Porsche 911(997) (991)
Boxster/Cayman (987)
Cayenne up to MY 2010
Cayenne from MY 2011

Especially the latest models:
Paramera (971) 2018
Caynenne (92A) 2018
Macan (95B) 2018
911 (991) 2018
and other old models


Select Panamera 971 (after 2017).

vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-03 vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-05


Remark: compare with Piwis II, Piwis3 puts coding and programming on the same menu.


Choose Control unit.



Choose “Gateway” and go on.


1) Extended identifications



2) Fault memory



3) Data stream


4). Coding and programming.



5). Maintenance repairs



Part 2: Porsche Piwis3 Engineer mode.

Choose”System”, then ” Diagnostics configuration for 991,981, 918, 970, Cayenne from MY11, Macan”

vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-012 vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-013


1) Version information


2) Mode option



3) Choose “E” for the engineering version.

After you change the mode to “E” and want to enter to change to other mode you will be disallowed, you need to restart the software. This is another difference between the PIWIS tester III and II. The developer claims to make a normal mode and develop mode for switch as free as you like.

vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-016                                                                                                                                                                                                                                                                                                                                                                  Part 3: Porsche Piwis3 Wiring diagram

Choose “Applications” to go “Wiring diagram”.



Choose the Porsche model to read the wiring diagram. For the Model after 2017, you need Porsche PIWIS Tester III

It allows the user to drag and enlarge, which is very convenient for the technician.

vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-018 vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-019 vxdiag-vcx-doip-porsche-piwis-iii-v37-250-020-020


Part 3: Porsche Piwis3 Team viewer