What the known faults on this Hyundai Bayon typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.
The single priciest documented job on the 2021–2025 Hyundai Bayon is head gasket / cooling system repair at £900–£2,600. Few cars need every repair listed here · treat £2,490–£8,750 as the full exposure if one arrived with all of them.
Juddering or hesitation when pulling away from a standstill on models equipped with the 7-speed DCT, indicating dry clutch pack wear or overheating.
Inspect · Perform a hill start or pull away very slowly from a standstill on the forecourt; feel for vibrations through the seat or hesitation before the clutch fully engages.
Jerky gear changes or failure to engage the clutch smoothly on iMT (Intelligent Manual Transmission) models due to actuator hesitation.
Inspect · Depress the clutch pedal with the engine off to listen for excessive actuator clicking, then test for smooth take-up during a low-speed forecourt manoeuvre.
Infotainment and camera faults
Inspect · Test the screen, camera and mirroring
Clunking or knocking noise from the front end caused by premature wear of the front anti-roll bar drop links.
Inspect · Rock the vehicle side to side aggressively while stationary and listen for knocks, or drive over a forecourt speed bump at low speed with the windows down.
Rear disc corrosion on low mileage cars
Inspect · Inspect rear discs for pitting
48V Mild Hybrid system warning light on the dash or failure of the engine to seamlessly restart during stop-start operation.
Inspect · Check the dash for hybrid system warnings on start-up. Trigger the stop-start system on the forecourt to ensure the belt-starter generator restarts the engine instantly and smoothly.
Trim wear on hire and lease returns
Inspect · Inspect seats, wheel and gear knob wear
Carbon build up on the 1.0 T-GDi
Inspect · Cold start and check idle quality
Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.