Diesel M57 instrument coding plug / codierstecker is compatible with M57 diesel engine swap of BMW 3-series e30. Coding plug can be easily swapped allowing dash cluster to be used with wide variety of  engines. Using the right coding will allow your tacho (RPM gauge) and econometer gauges to show the right reading.

316, 316i, 318i, 318is, 320i, 325i, 325ix, 330i, 324d, 324td, M3

Parts included: -E30 coding plug for diesel M57 engine

The coding plug contains important information about car engine. On every engine start, cluster is reading from the coding plug and adjusting gauge parameters accordingly.

POSSIBLE TO mix and match with OEM center cap parts!

Lead time: 1-2 days