What is the BMW FRM and why does it fail?
The FRM (Fussraummodul, or footwell module) is a body-control module fitted to BMW 1 Series (E81–E88), 3 Series (E90–E93), X1 (E84), Z4 (E89), X5/X6 (E70–E72) and MINI R55–R61, roughly 2005 to 2014. It controls the windows, indicators, exterior lights, mirrors and central locking. Its known weakness: a dip or spike in battery voltage — a jump start, a flat battery, a battery change or charging on the car — can corrupt the module's internal memory and knock out a whole list of functions in one go.
My BMW's lights and windows died after a jump start — is that the FRM?
Almost certainly, yes. This is the classic FRM failure: the car is jump-started or recovers from a flat battery, and immediately the windows, indicators and some or all exterior lights stop working, often with warning lights that will not clear. The hardware is usually fine — the module's memory has corrupted. We rebuild that data at your door and everything comes back.
What are the symptoms of a corrupt FRM module?
Windows stop working (often all at once), indicators and hazards fail, exterior lights fail or stick on, central locking misbehaves, dashboard warnings will not clear, and in some cases the module stops communicating with diagnostics entirely. Symptoms usually appear straight after a jump start, battery change or flat battery.
Can the FRM be repaired or does it need replacing?
In most cases it can be repaired — the module rarely fails physically. We read the corrupted memory, rebuild the data and put the original module back into service, keeping your car's original coding, so there are no dealer programming fees afterwards. We cover every FRM variant — FRM, FRM2, FRM3 and FRM3R — and all part numbers. If a module is genuinely beyond repair, we tell you before any work is done.
Which BMW and MINI models are covered?
All FRM-equipped BMWs and MINIs: 1 Series E81, E82, E87, E88; 3 Series E90, E91, E92, E93; X1 E84; Z4 E89; X5 E70; X6 E71 and E72; and MINI R55, R56, R57, R58, R59, R60 and R61. The E60/E61 5 Series, E63 6 Series and E83 X3 use a different light module rather than an FRM — we repair those too on the same visit basis.
How long does FRM repair take?
About an hour on site for most jobs. We come to your home, workplace or the roadside, repair the module at the car, then test everything — windows, indicators, lights, central locking — before we leave. No posting your module away and waiting days without a car.
How much does BMW FRM repair cost?
It depends on where you are and which module your car has, so call or WhatsApp us with your registration and postcode and we will give you a fixed price upfront before we travel. It is a fraction of a new module from BMW once dealer coding and recovery are added — and you keep your original module and coding. Full breakdown:
what FRM repair really costs.