What the known faults on this Hyundai Sonata 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 2015–2019 Hyundai Sonata is body & corrosion repair at £250–£1,800. Few cars need every repair listed here · treat £1,590–£8,800 as the full exposure if one arrived with all of them.
Panoramic sunroof struggles to open, grinds, or gets stuck in the tilted position.
Inspect · Operate the sunroof switch to fully open and close the glass panel. Watch for uneven movement, hesitation, or loud grinding noises from the roof tracks, which points to imminent motor or cable failure.
Electric power steering faults.
Inspect · Confirm steering is consistent with no warning lights.
Infotainment and sensor glitches.
Inspect · Test the screen and driver-assist features.
Clunking, popping, or spring-binding noises from the front end at low speeds.
Inspect · With the engine running and the car stationary on the forecourt, turn the steering wheel fully lock-to-lock. Listen for a distinct 'boing' or clunk from the front arches, indicating worn strut top mount bearings.
Theta II 2.0T/2.4L engine failure (bearing/knock) — subject to recalls and warranty extensions.
Inspect · Listen for a knock, check for the knock-sensor recall completion, and confirm any engine replacement.
Clicking noise from behind the fascia and incorrect cabin temperature.
Inspect · Turn the ignition on, cycle the climate control temperature from minimum to maximum on both zones, and listen for a rapid clicking or tapping sound behind the glovebox indicating a stripped blend door actuator.
Excessive oil consumption.
Inspect · Check oil level and top-up history.
Vehicle refuses to crank, harsh gear engagement, or blank dashboard gear indicator.
Inspect · Cycle the automatic gear selector through P, R, N, and D several times. Verify the dashboard indicator instantly matches the physical selector position and check for delayed or violent engagement caused by a failing inhibitor switch.
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.