Mercedes-Benz E-Class Brake Discs: Specs, Fitment & Wear Symptoms
A genuinely 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 caused by corrosion without replacing any parts.
Illustration for editorial purposes
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OEM Part Number: A0004212712
| Front discs, standard | Mercedes-Benz OEM: A0004212712 |
|---|---|
| Front discs, standard brakes package (E220d confirmed) | Mercedes-Benz OEM: A0004218700 |
| Front brake pads | Mercedes-Benz OEM: A0004209603 |
| Front brake pad wear sensor | Mercedes-Benz OEM: A1695401617 |
Mercedes-Benz E-Class Brake Discs: The Part That Pads Depend On
On the Mercedes-Benz E-Class, it's a paired system: let either one wear too far and the other suffers for it, which is why so many "just a pad change" jobs end up including discs once a mechanic actually looks.
Mercedes-Benz E-Class 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 E-Class typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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A Genuinely Useful, Cost-Free Fix Worth Trying First — Mercedes-Benz E-Class Brake Discs
If a vibration under braking has developed, particularly after the car has sat unused for a while, this is genuinely worth trying before assuming discs need replacing: braking firmly from around 60mph five or six times in succession generates enough heat to deglaze the disc and pad contact faces, often curing a vibration caused by corrosion buildup or uneven pad material transfer without needing to replace any parts. Worth letting the discs cool evenly afterward as part of this process, rather than parking immediately, since uneven cooling can reintroduce the same uneven friction pattern.
It's also genuinely worth knowing that 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.
Mercedes-Benz E-Class 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.