Do I Need A BMW 20-Pin Adapter?

Q: Do I Need a BMW 20-Pin Adapter?

Yes, if you have a BMW model from 1982 to 2001 (E28, E30, E34, E36, E38, E39, E46, Z3, Z8, or X5) that uses the older round diagnostic port instead of OBD-II.

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Applies to: UCAN-II, UCAN-II Pro

You need a BMW 20-pin adapter if your vehicle uses the older round diagnostic port. This includes:

3-Series: E30 (1988–1992), E36 (1992–1999), E46 (1998–2000)
5-Series: E34 (1989–1995), E39 (1996–2000)
7-Series: E32 (1988–1994), E38 (1995–2001)
Z3 (E36), Z8 (2000–2001, E52)
X5 (1999–2001, E53)

If your BMW has a standard 16-pin OBD-II port (2001+ models), you do not need this adapter.

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