BMW 4 Series Brake Pads: Specs, Fitment & Wear Symptoms

On the 4 Series, once the first internal wear event triggers, the sensor genuinely cannot be reused, even if it still looks intact.

Illustration for editorial purposes

OEM Part Numbers

Genuinely worth knowing: the standard "M Sport" trim package and the separately-optioned "M Sport Brakes" (option code S2NHA, larger discs with 4-piston Brembo calipers) use genuinely different pads despite the near-identical naming. M4 models use a further different, larger performance pad again. Confirm which brake setup is actually fitted (by caliper appearance) before ordering.

Brake Pads Are One of the Few Truly Universal Parts

Every version of the 4 Series uses brake pads that wear down through normal use — the only real variable is how quickly, which depends on engine, trim, and (where fitted) whether the car has any form of regenerative braking to ease the load.

Before you buy: pad size and compound vary by engine and trim. Always confirm against your VIN before ordering.

What They Do

Brake pads clamp against the discs to convert the car's momentum into heat, slowing it down. On any version of the 4 Series with hybrid assistance or regenerative braking, this system handles a meaningful share of everyday slowing, which can genuinely extend pad life compared with a purely petrol or diesel equivalent.

Common Sizes

Standard trims, front pad (shared across 1/2/3/4 Series, confirmed for F32/F33/F36 428i)	Sized to match the 312mm disc/caliper on this tier. Pad size genuinely scales with engine output and trim on this model, not just the disc diameter — always confirm the exact pad against your VIN rather than assuming from generation alone.
M Sport trim package, front pads	Genuinely a different, larger pad to match the 330mm disc/caliper on this higher tier — not interchangeable with the standard-tier pad on the same axle.
M Sport Brakes option (S2NHA), front pads	Genuinely a different, larger pad to match the 340mm disc/caliper on this higher tier — not interchangeable with the standard-tier pad on the same axle.
M4/M440i, front pads	Genuinely a different, larger pad to match the 380mm disc/caliper on this higher tier — not interchangeable with the standard-tier pad on the same axle.

A Genuinely Useful Piece of Context Worth Knowing About Wear Sensor Resets — BMW 4 Series Brake Pads

If a brake pad wear warning won't clear despite fitting new pads, this is genuinely worth knowing: the wear sensor works through internal electrical stages, and once the first wear event has genuinely occurred, the sensor cannot be reused or reset again, even if it still looks physically intact.

A genuinely useful finding worth checking before assuming a genuine fault: many failed reset attempts are simply down to the handbrake still being engaged, even if it looks released — the car needs to be in park with the handbrake fully off for the reset to complete.

It's also genuinely worth knowing that aftermarket and budget sensors have been documented as genuinely hit and miss when it comes to resetting properly, worth sticking with a genuine sensor if you've had trouble.

Wear Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Brake Pads Guide for warning signs to watch for, confirming fitment against your VIN, and R90-certified aftermarket brands worth trusting.

More BMW Brake Pads

The same part, covered across other BMW models.

BMW 4 Series Brake Pads: Specs, Fitment & Wear Symptoms

OEM Part Numbers

Shop for This Part on eBay

A Genuinely Useful Piece of Context Worth Knowing About Wear Sensor Resets — BMW 4 Series Brake Pads