GeoBrakes stocks disc brake caliper kits confirmed to fit the Bmw 525i, pairing a replacement caliper at the correct left or right hand specification for the 525i with matched brake pads, caliper hardware, and in many cases a new rotor, so the entire brake corner on your Bmw 525i is restored in a single service. Every kit is confirmed for the Bmw 525i exact year, make, model, axle, and side, ships with a 100% fitment guarantee and full manufacturer warranty, and qualifies for free delivery on orders over $99.
When a caliper on the Bmw 525i seizes, leaks, or drags, the damage does not stop at the caliper. A partially seized caliper on your 525i keeps the brake pad in continuous contact with the rotor, wearing the pad unevenly and scoring the rotor surface. By the time the caliper on the Bmw 525i is identified as the fault, the pads are typically worn asymmetrically and the rotor is damaged. A caliper kit from GeoBrakes addresses every compromised component on your Bmw 525i together.
The kit for your Bmw 525i includes the disc brake caliper at the correct left or right hand specification for the 525i, either new OEM-spec or quality remanufactured to the Bmw 525i piston dimension and hydraulic pressure rating, brake pads in ceramic or semi-metallic formulation matched to the 525i caliper and rotor specification, caliper hardware with slide pins, pin boots, and anti-rattle clips for correct caliper float on the Bmw 525i, brake lubricant for correct pin and shim installation on your 525i, and copper washers or banjo bolt seals for the brake hose connection where required by the Bmw 525i application.
A caliper kit is the right call for the Bmw 525i in three specific situations. After a seized or dragging caliper, because the pads and often the rotor on your 525i are already compromised. During a high-mileage 525i overhaul at 150,000 kilometres or more, because caliper piston seals and guide pin boots on the Bmw 525i are typically at or beyond their service life. After a brake fluid leak at the caliper, because fluid contamination of the 525i brake pad renders the friction material permanently ineffective on your Bmw 525i.
New OEM-specification calipers for the Bmw 525i are manufactured from fresh materials with no prior service history, the strongest choice for 525i vehicles in high-corrosion environments. Remanufactured calipers use original Bmw 525i housings rebuilt with new pistons, seals, and boots, performing identically to new units at a lower price point for most 525i replacement applications.
Calipers for the Bmw 525i are the most position-specific brake component in the catalogue. Left and right calipers for the 525i are not interchangeable. Our vehicle selector confirms the correct caliper kit for the Bmw 525i exact year, axle position, and left or right side before purchase.
Should I replace both calipers on my Bmw 525i at the same time?
It is strongly recommended. If one caliper on the Bmw 525i has seized or leaked, the caliper on the opposite side has experienced the same conditions and age on your 525i. Replacing both restores balanced, even braking and eliminates the risk of the second 525i caliper failing shortly after the first is replaced.
Do I need to bleed the brakes on my Bmw 525i after installing a caliper kit?
Yes. Opening the hydraulic circuit on the Bmw 525i to install the new caliper allows air to enter. After installation, the brake circuit on the 525i must be bled at the caliper bleeder screw to purge all air and restore a firm, consistent brake pedal on your Bmw 525i.
What is the difference between a new and remanufactured caliper in the Bmw 525i kit?
A new caliper for the Bmw 525i has no prior service history and is the stronger choice for high-corrosion environments. A remanufactured caliper uses an original 525i housing rebuilt with new pistons, seals, and boots, performing identically to new at a lower price point for most Bmw 525i applications.