Mercedes-Benz GLC Brake Discs: Specs, Fitment & Wear Symptoms
On the GLC, genuine, original Mercedes discs are designed for aggressive autobahn speeds, meaning UK speed limits genuinely shouldn't cause true warping.
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OEM Part Number: 000-421-28-12-64
| GLC300/GLC350e, front discs | Mercedes-Benz OEM: 000-421-28-12-64 — replace in pairs only |
|---|---|
| GLC250 2.1d 4Matic, front discs | 342mm diameter, vented, 32mm thickness, 29.4mm minimum |
| GLC250 2.1d 4Matic, rear discs | 320mm diameter, vented, 24mm thickness, 21.4mm minimum |
| AMG variants, front discs | 360-390mm diameter, vented — a genuinely much larger specification than standard/diesel trims |
Mercedes-Benz GLC Brake Discs: The Part That Pads Depend On
On the Mercedes-Benz GLC, discs and pads don't wear independently — neglect one and the other degrades faster too, which is exactly why what starts as a routine pad change frequently turns into a disc replacement as well.
Mercedes-Benz GLC 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 GLC typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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A Genuinely Distinctive, Honest Finding Worth Knowing — Mercedes-Benz GLC Brake Discs
If a vibration under braking has been diagnosed as warped discs, this is genuinely worth knowing: genuine, original Mercedes discs are designed specifically to withstand aggressive autobahn speeds, meaning UK speed limits genuinely shouldn't be enough to cause true warping under normal driving conditions. What's commonly mistaken for warping is far more often corrosion buildup or uneven pad material transfer.
It's also genuinely worth knowing a useful, cost-free fix: braking firmly from around 60mph five or six times can deglaze the disc and pad contact faces, often curing a vibration without needing to replace any parts.
Mercedes-Benz GLC 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 Mercedes-Benz Brake Discs
The same part, covered across other Mercedes-Benz models.