BMW TCM / EGS / Transmission Services

BMW automatic transmission control is handled by the EGS (Elektronische Getriebesteuerung — Electronic Transmission Control) which lives in the conductor plate of ZF / GM transmissions, or by a separate TCM in some chassis. ZF 5HP / 6HP / 8HP and GM 5L40-E generations are all covered as EGS units. This hub will list our BMW TCM / EGS bench services as they launch.

Available Services

This hub is reserved for upcoming services. Contact us if you need this work — we can provide a quote based on your specific module and part number.

Not Sure Which Service to Choose?

If you are unsure which option matches your BMW module, the safest path is to email or text us photos before ordering: full label of the original module (the one you want serviced), full label of the donor module if you already have one, the part number, hardware revision, and software/calibration sticker, and a photo of the connector pinout if visible. We will confirm whether the service is supported for your specific part number and hardware revision before you order and ship.

Compatibility Warning

EGS service requires correct identification of the transmission and conductor plate (ZF 5HP, 6HP19, 6HP21, 6HP26, 8HP45, 8HP70, GM 5L40-E, etc.). Different generations are not cross-compatible. Photos of the conductor plate label and your VIN before ordering save shipping costs.

What to Ship

  • Your original BMW module (the failed/locked unit), clearly marked “ORIGINAL”
  • If applicable: a donor module, clearly marked “DONOR” — same part number family and hardware revision as the original
  • Your order receipt printed, or order number written on a slip in the box
  • Your return shipping address
  • Ship to the address shown on your order receipt at checkout (we operate from 2 locations and route based on tool availability and turnaround)

Related BMW Services

FAQ

Which BMW transmissions are covered when this hub launches? ZF 5HP / 6HP (E39 / E46 / E60 / E65 / E70 / E90), ZF 8HP / 8HP45 / 8HP70 (F-series / G-series), and GM 5L40-E on early E-series.

Can the conductor plate be cloned without removing the valve body? The conductor plate has to come out of the transmission for bench work.