24/03/2026
2025 Mercedes-Benz A45 AMG S for a pre-track day inspection and brake disc run out inspection.
Before hitting the track, we inspected this A45 to make sure everything is operating as it should under sustained load, not just normal road use.
Brake disc runout is one of the key checks. Even slight deviations in the disc can lead to vibration under braking, uneven pad wear, and reduced braking performance once temperatures rise on track.
We measure runout using a dial gauge mounted to the hub, rotating the disc to check for any lateral movement beyond tolerance. If itβs out, it can point to disc wear, hub contamination, or improper installation.
A full pre-track inspection also covers:
β’ Brake pad condition and remaining material
β’ Fluid condition and boiling point
β’ Tyre condition and pressures
β’ Suspension and bushings
β’ Any signs of leaks or excessive play
Track driving exposes every weak point. Catching issues early protects the car, improves consistency, and gives you confidence when pushing harder.
If youβre planning a track day, donβt skip the prep. Book in for an inspection before you hit the track.
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π 0114 276 8193
π§[email protected]
π₯www.jbmperformance.co.uk
πUnit 4, Fieldhouse Way, Sheffield, S4 7SF
β°Mon-Fri 8AM-5PM
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