Suzuki SX4 S-Cross Brake Discs: Specs, Fitment & Wear Symptoms
On the SX4 S-Cross, front-biased brake balance on this engine genuinely means the rear discs corrode faster than the fronts — plus a confirmed UK safety recall for a swelling brake booster valve.
Illustration for editorial purposes
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OEM Part Number: 5561161M00
| Rear disc, genuine reference (shared with Vitara, SX4) | Suzuki OEM: 5561161M00 (also referenced as 5561161M00000, 5561161M20) — 259mm diameter, solid, 9mm thickness, 8mm minimum |
|---|---|
| Front discs, standard variants | 280mm diameter, vented, 22mm thickness, 20mm minimum |
Suzuki SX4 S-Cross Brake Discs: The Part That Pads Depend On
On the Suzuki SX4 S-Cross, these two components wear together, and letting one go too long accelerates wear on the other, which is why a simple pad swap so often reveals discs that need replacing at the same time.
Suzuki SX4 S-Cross Brake Discs: What They Do
Brake discs provide the surface the brake pads clamp against to slow the car, converting momentum into heat through friction. Larger, sportier trims of the SX4 S-Cross typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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A Genuinely Specific, Real Technical Explanation Worth Knowing — Suzuki SX4 S-Cross Brake Discs
If you're finding the rear discs looking notably more corroded than the fronts, this is genuinely worth knowing: on related Suzuki models sharing this same engine and brake setup, the brake balance is strongly biased toward the front, meaning the rear brakes are used comparatively minimally during normal driving. This has been documented causing the rear discs to develop surface corrosion more quickly, particularly during winter or extended parking. Surface rust alone is normal, but it's worth checking for deep pitting or an uneven lip, which points toward genuinely neglected calipers.
It's also worth knowing that this recall relates to brake feel and pedal effort via the vacuum booster specifically, rather than the discs themselves — worth keeping in mind as a separate check.
Suzuki SX4 S-Cross Brake Discs: Wear Symptoms, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Brake Discs Guide for warning signs to watch for, confirming fitment against your VIN, and choosing a reliable aftermarket disc.
More Suzuki Brake Discs
The same part, covered across other Suzuki models.