bhtooefr
TDIClub Enthusiast, ToofTek Inventor
It depends on whether you work off of parts prefixes or VINs.
By US VINs, the current Golf and Jetta are both Typ AJ, IIRC.
And, looks like 9B is only for Brazilian-production Mk4 Golfs.
Typ 16 is actually the type code used by the Mk1 Jetta.
Also, the A through E designations actually don't fit into the old (pre-early 2000s) VW platform numbering system - the Up! is A-class, Polo is B-class, Golf is C-class, Passat is D-class, and Phaeton probably skips to F-class (it's comparable to the Audi A8, and the A6 is the E-class car).
Then again, the outgoing system actually did work fairly well there - it assigned the classes to a number. Current Polo is PQ25 (passenger car, transverse, B-class, 5th-gen), current Golf/Jetta (given that Mk6 is a facelift on the Golf, and the Jetta's derived from it still) is PQ35 (C-class), current Euro Passat is PQ46 (D-class), previous Audi A4 is PL47 (longitudinal, D-class), previous Audi A6 is PL56 (E-class), Phaeton is PL62 (F-class), previous Audi A8 is PL63, and the Touareg family is PL72 now.
Edit: And looks like the P designations may still being used internally somewhat, even though all the longi cars are moving to MLB - so the current A4, A5, and Q5 are PL48, for example.
By US VINs, the current Golf and Jetta are both Typ AJ, IIRC.
And, looks like 9B is only for Brazilian-production Mk4 Golfs.
Typ 16 is actually the type code used by the Mk1 Jetta.
Also, the A through E designations actually don't fit into the old (pre-early 2000s) VW platform numbering system - the Up! is A-class, Polo is B-class, Golf is C-class, Passat is D-class, and Phaeton probably skips to F-class (it's comparable to the Audi A8, and the A6 is the E-class car).
Then again, the outgoing system actually did work fairly well there - it assigned the classes to a number. Current Polo is PQ25 (passenger car, transverse, B-class, 5th-gen), current Golf/Jetta (given that Mk6 is a facelift on the Golf, and the Jetta's derived from it still) is PQ35 (C-class), current Euro Passat is PQ46 (D-class), previous Audi A4 is PL47 (longitudinal, D-class), previous Audi A6 is PL56 (E-class), Phaeton is PL62 (F-class), previous Audi A8 is PL63, and the Touareg family is PL72 now.
Edit: And looks like the P designations may still being used internally somewhat, even though all the longi cars are moving to MLB - so the current A4, A5, and Q5 are PL48, for example.
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