BMW FRM2 vs FRM3: which footwell module is repairable?

If your BMW or Mini has lost indicators, lights or windows, the footwell module (FRM) is a likely cause. Whether it can be repaired depends on which generation it is — and only the FRM3 can.

The three generations

The Footwell Module (FRM) controls exterior and interior lighting, indicators and, on many models, the power windows. BMW used three generations:

• FRM1 and FRM2 — earlier designs with different internals. A failed FRM1 or FRM2 cannot be reliably repaired and must be replaced with a coded unit.
• FRM3 / FRM3R — the third generation, fitted across most 2009-on E-series BMWs and Minis. When it fails, the fault is usually corrupted memory, which we can restore — so the FRM3 is repairable.

Why FRM3s fail

The FRM3 stores its program in flash memory. A voltage dip or spike — most often during a flat battery, jump-start or battery change — can corrupt that data, and the module stops responding. The hardware is usually fine; it's the stored data that's damaged, which is exactly what makes it recoverable. Read more on the FRM3 repair page.

How to tell which you have

The generation is printed on the module's label, along with a BMW part number (FRM3 units typically start 61.35.9…). The easiest way to be sure is to photograph the label and send it to us — we'll confirm whether it's a repairable FRM3 before you post anything.

Common questions