250 Uneven front camber on Megane 3 RS Cup (~0.6° split) — where to look?

Discussion in 'Suspension, Brakes, Wheels & Tyres section' started by olivvier_w, Jun 18, 2026 at 1:27 PM.

  1. Hi all,

    Just had a full alignment done on my Megane 3 RS Cup (3-door D95, completely standard suspension) and the front camber has me puzzled. Hoping someone here has seen this before.

    [​IMG] [​IMG]

    Front camber:
    - Left: -0°40'
    - Right: -1°17'

    Both sides are inside Renault's tolerance (the sheet shows -0°22' to -1°22'), so individually they're "fine" — but that's a ~37' / ~0.6° side-to-side split, which feels like a lot.

    Caster is asymmetric too:
    - Left: 6°29'
    - Right: 7°00'

    And the wheelbase isn't symmetric either — the sheet shows:
    - Left side: 2633mm
    - Right side: 2637mm

    Background:
    - Bought used, no known accident history, no visible signs of impact.
    - Suspension is 100% stock.
    - The left front hub bearing was replaced fairly recently because of a humming noise — and I still get a hum from the front wheel area on long right-hand bends. So either the new bearing is also noisy or the bearing was never the real source.

    Questions:
    1. Has anyone had this kind of camber/caster split on a stock RS3?
    2. Could the alignment issue be linked to the hum (irregular tyre wear), or is that a separate bearing thing?
    3. What would you check / replace first?

    Alignment screenshots attached. Any pointers appreciated — I'd like to sort this before I start looking at coilovers and track use.

    Cheers
     

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