21 pages info Dirk + I collected from worldwide forums on this subject, can be downloaded from my website below, see index >>>engine general>>> Rebuild the throttle bodies - detailed write up many photos
in case the the throttle body encoder plates are damaged, here are repair parts from https://v12throttle.com/ quote: This is a limited production run of the upgraded throttle encoder plates suitable for M70 and S70 V12 engines.
Seal kit and the gasket are included.
Before going NLA single throttle was priced at 4k USD each. Original encoder plate has several issues, encoder face get's worn delaying throttle response and causing throttle lag, molded in resistors fail after 30 years of use causing an EML light and a dead cylinder bank. Original encoder plate has been re designed at least 5 times over the years, we took the latest specs of the last BMW production run to build new encoder plates. We used highest quality Japanese made resistors available on the market, the encoder surface is coated and treated to be far more resilient to wear than OEM. The result is much improved throttle response, silky smooth idle, no more choking while cruising and up and down idle at start. Revving and throttle feel on acceleration are