This bulletin applies to 2019-2020 Volkswagen Jetta GLI and Golf GTI vehicles. Under certain conditions, the engine may stall at very low speeds or when the vehicle is already stopped with the engine running.
Update the J623 engine/motor control module using the SVM unit code438F and new software version 0005 or higher. New software is P/N 5G0 906 259 Q.
This bulletin applies to 2019-2020 Volkswagen Jetta GLI and Golf GTI vehicles. Under certain conditions, the engine may stall at very low speeds or when the vehicle is already stopped with the engine running.
The ECM software update will address the potential issue and reportedly improves drivability. Update the J623 engine/motor control module using the SVM unit code438F and new software version 0005 or higher. New software is P/N 5G0 906 259 Q.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
