Ferodo FWI439 680mm Brake Pad Wear Sensor for BMW i3 Electric (I01) 2013-2022 - OE Spec Pad Wear Indicator Cable, Warning Light Lead Loom, Direct-Fit Brake Lining Sensor Harness Replacement

Ferodo FWI439 - 680 mm pad wear indicator wire for BMW i3 I01 2013-2022

Restore your dashboard pad wear alert and keep your stopping system in top condition with the Ferodo FWI439. This OE-spec lining indicator lead is engineered for the BMW i3 electric I01 platform from 2013 to 2022, giving you a simple plug-in, like-for-like swap that fits perfectly and performs exactly as the factory intended.

We use this part in our own workshop and our BMW i3 customers have been consistently impressed with its reliability, accurate warning behaviour and tidy routing. If you want a no-fuss fix that lasts, this Ferodo harness is the one to choose.

Highlights

• Part number: FWI439 - precise 680 mm pad wear indicator cable
• Ferodo quality - built to match factory specification and signal consistently
• Exact fit for the i01 chassis with correct clips and connectors
• Helps avoid premature disc damage by giving timely pad wear alerts
• Durable outer sheath and sealed plug for dependable performance in daily use
• Quick plug-in replacement when the original warning wire is damaged or open circuit

Vehicle coverage

Designed for BMW i3 EV on the I01 platform, model years 2013 to 2022. Unsure it suits your car? We can verify compatibility before you order or dispatch.

Compatibility check before dispatch

For peace of mind, send us your UK registration or the last 7 digits of your VIN at checkout and we will confirm that FWI439 is the correct indicator lead for your i3.

Professional fitting and support

Installation available at MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk. Tip for best results: follow the original guide clips, keep the harness clear of moving parts and replace the indicator lead whenever you fit new pads for the most accurate monitoring.

How this indicator lead works

The sensor forms a monitored loop within the friction lining. As the pad material wears down to the calibrated point, the loop breaks and the car triggers a pad wear message on the instrument cluster. Replacing a broken or worn loom with the Ferodo FWI439 restores precise monitoring and keeps your BMW i3 braking system safe and predictable.

Technical details

• Brand: Ferodo
• Part number: FWI439
• Overall length: 680 mm
• Application: BMW i3 electric I01 2013-2022
• Category: brake lining indicator, pad wear warning cable, wear sensor loom, indicator harness

Search terms customers use

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