Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1462 (BRAKE SYSTEM - GENERAL INFORMATION)GENERAL PROCEDURESBRAKE SYSTEM INSPECTIONBRAKE DISCS
2009 Mercury Milan Premier, 3.0 1, AWD
Brake Discs
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Brake Discs
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Using an impact tool without a torque socket will lead to unevenly tightened wheel nuts. This causes brake disc on-vehicle lateral runout and brake roughness.
- Inspect the brake discs and measure the brake disc thickness. Record the measurements. Refer to SPECIFICATIONS .
- If the brake disc is cracked or otherwise damaged, install a new brake disc. For additional information, refer to REMOVAL AND INSTALLATION for front brakes or INSTALLATION for rear brakes .
- If the measurement is below the minimum thickness specification, install a new brake disc. For additional information, refer to REMOVAL AND INSTALLATION for front brakes or INSTALLATION for rear brakes .
- If the diagnosis has revealed vibration in the steering wheel, seat or pedal while braking that varies with vehicle speed, machine the brake disc. Heavily scored brake discs, similar to that caused by pads worn down to the backing plate, should also be machined. In order to machine, discs must be above the minimum thickness specification. For additional information, refer to SPECIFICATIONS and BRAKE DISC MACHINING .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.