2020 Honda Civic S I-Dtec 1.6L Diesel · LS20 HMJ

A concerning electronic safety system failure sits at the centre of this Civic's recent MOT record and warrants careful scrutiny from any prospective buyer. The car passed its most recent test on 1 July 2026 with no defects recorded, but that pass came just one week after a 24 June 2026 fail that flagged a Major ABS warning lamp fault and a Major Electronic Stability Control warning lamp fault, alongside an advisory noting the tyre pressure monitoring light was illuminated. While the swift retest and clean pass demonstrate the issues were apparently rectified, ABS and ESC faults on a 2020 Honda Civic of this age and mileage can stem from a range of underlying causes including failing wheel speed sensors, corroded sensor rings, damaged wiring looms near the hubs, hydraulic modulator faults, or even a failing steering angle sensor. The tyre pressure warning light advisory at the same test may simply reflect a sensor battery depletion or a recent wheel change, but combined with the ABS and ESC warnings it raises the possibility of a more systemic sensor or electronic control issue that could resurface. Mileage accumulation on this Civic is broadly consistent with typical UK usage for a six-year-old diesel family car, averaging approximately 10,700 miles per year against the recorded 64,295 miles. The testing history shows no extended gaps or periods off the road, with annual tests conducted reasonably consistently through 2024, 2025, and into 2026. This regular, moderate annual mileage points to steady mixed driving rather than long motorway commutes or prolonged standing, which on a diesel I-DTEC is generally favourable for avoiding common DPF issues, EGR valve carbonisation, and dual-mass flywheel wear that plague high-mileage or short-journey examples. However, the brake and tyre advisories from early 2024 suggest that consumables were beginning to demand attention at that point, and it is reasonable to expect further replacement of these items may now be approaching given the additional 12,000 miles covered since. The 2024 test recorded front brake pads wearing thin along with all four tyres showing either edge wear or cuts in the tread area, and the January 2025 test noted both rear tyres at 3mm with minor tread cuts. Edge wear on the fronts is a known characteristic of the Honda Civic Mk10 due to its relatively aggressive front suspension geometry and the tendency for camber to alter as the rear compliance bushes age. On a test drive, listen carefully for clonks or knocking from the front suspension over speed humps and uneven road surfaces, particularly from the front lower control arm bushes and anti-roll bar drop links. Inspect the inner and outer shoulders of the front tyres for feathering or uneven wear patterns, and check the rear tyres for any signs of accelerated inner-edge wear which would point to rear suspension geometry concerns. Additionally, verify the tyre pressures manually against the door placard rather than relying on the TPMS, given that the warning light had previously flagged. Given the ABS and ESC warning lamp failure, particular attention should be paid during any test drive to the operation of these systems. On a quiet stretch of road, perform an emergency stop from around 30 mph and confirm the ABS pulse can be felt through the brake pedal without the pedal becoming unduly hard or the system failing to intervene. On a damp or loose surface, perform a firm lane-change manoeuvre at moderate speed and verify the stability control warning light extinguishes promptly once the system has completed its intervention, and that no warning lamps remain on the dashboard after the ignition cycle. Scan the instrument cluster for any illuminated warnings before driving, including the tyre pressure, ABS, and ESC lights, and use an OBD-II scanner capable of reading Honda-specific ABS and VSA codes to confirm no stored fault codes remain. Given the diesel powertrain, also listen for any diesel knock on cold start, check for excessive smoke from the exhaust, and confirm the DPF has no warning lamp illuminated, as a healthy I-DTEC at this mileage should start cleanly and run smoothly without hesitation under acceleration.