What the known faults on this Hyundai i40 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 2011–2019 Hyundai i40 is timing chain, tensioner & guides at £900–£2,400. Few cars need every repair listed here · treat £2,940–£11,100 as the full exposure if one arrived with all of them.
Rhythmic ticking or metallic rattling from the engine bay on cold start due to timing chain stretch and tensioner wear on the 1.7 CRDi.
Inspect · Ensure the engine is completely cold. Start the car with the bonnet open and listen closely to the timing chain cover area on the left side of the engine for a harsh metallic rattle.
DPF and EGR faults on the 1.7 CRDi
Inspect · Check for regen warnings and run it hot
Clutch judder when pulling away in first gear or a rattling noise at idle, indicating dual-mass flywheel (DMF) wear on manual 1.7 CRDi models.
Inspect · Start the engine from cold. Listen for a metallic rattle that disappears when the clutch pedal is depressed. Test a pull-away in first gear to feel for driveline judder.
Clicking or clunking noise when turning the steering wheel side to side, caused by a worn flexible coupling inside the electronic power steering (EPS) motor.
Inspect · With the engine running and the vehicle stationary, gently rock the steering wheel left and right. Listen for a distinct click or clunk echoing from behind the dashboard.
Touchscreen infotainment and sat-nav unit freezing, rebooting randomly, or displaying a blank screen due to software corruption or mainboard failure.
Inspect · Turn the ignition on and immediately test the touchscreen responsiveness. Cycle rapidly through the radio, media, and sat-nav menus to ensure the system does not lag, freeze, or crash.
Front bush and drop link wear
Inspect · Listen for knocks over rough roads
Parking sensor and camera faults
Inspect · Test all sensors and the reversing camera
Rear caliper seizing on low mileage cars
Inspect · Check for uneven rear pad wear
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.