2026-08-15 · 5 min read
BMW X4 Brake Disc Malaysia — F26/G02
F26 front disc 330mm standard (M Sport 348mm). G02 similar. M40i: 370mm front disc. Replace disc and pads together. Heavier X4 puts more stress on discs than X3. Malaysia cost: standard RM 900–1,500/axle; M Sport/M40i RM 1,200–2,000/axle.
X4 Brake Disc
- Same discs as X3 equivalent variant — replace at minimum thickness
- Cost: RM 650–950 per axle (OEM)
Surface Rust and Disc Life in Malaysia
High humidity in Malaysia means brake discs surface-rust quickly after rain or overnight — this is normal and clears within a few applications of the brakes. Concern yourself with disc minimum thickness (stamped on disc edge), deep radial grooves and warping felt as pedal pulsation. On the X4, always replace brake pads and discs as a pair when either is at the wear limit. Using aftermarket coated discs (Brembo, DBA) reduces surface rust significantly.