E31 BMW V12 Throttle Body Rebuild Service (Pair) - 850Ci 850i 850CSi 750il

This service involves the installation of upgraded throttle body encoder plates, compatible with all V12 M70 (1986-1994) and S70 engines (1992-1997). The service is provided for a pair of throttle bodies that you will send to us. In addition to the installation of new encoder plates, the service includes a professional rebuild of the throttle, along with new caps, seals, and gaskets.

Throttle bodies are no longer available (NLA). Previously, a single throttle was priced at $4,000 USD. Owners of fly-by-wire BMW vehicles who intend to maintain their cars in the long term should consider acquiring these encoder plates to prevent their vehicles from becoming inoperable.

The original encoder plate has several shortcomings; the encoder surface wears in tracks, resulting in delayed throttle response and throttle lag, while the molded resistors may fail after 30 years of use, triggering an EML light and causing a dead cylinder bank.

The original encoder plate has undergone redesign at least five times over the years. We have utilized the latest specifications from the final BMW production run to manufacture new encoder plates. The resistors, made in Japan, are of the highest quality available on the market, and the encoder surface is coated and treated to enhance resilience against wear compared to the OEM version.

The outcome of these improvements is significantly enhanced throttle response, a smoother idle, elimination of choking during cruising, and consistent idle at startup. Additionally, the intermittent EML light issue is resolved, resulting in a markedly improved revving experience and throttle feel during acceleration.