2017 Vauxhall Mokka 1.4L Petrol · MM07 KRM

A chronic exhaust leak at the front section, almost certainly originating from the front flexible joint or downpipe area, is the defining mechanical thread running through this Mokka's recent MOT history. The defect was first flagged in 2024 as a minor leak at the front exhaust flexi, reappeared under the same description in August 2025, and was again recorded as a minor leak of exhaust gases on the most recent pass dated 17 August 2026. The fact that the same component has been reported across three consecutive tests suggests the advisory is not a transient observation but a persistent issue that has neither been resolved nor deteriorated to a failure level. Alongside this, the 2025 test cycle included a serious tyre failure event: both rear tyres were marked as dangerous due to structural separation, and the nearside front tyre was failed as a major defect with a cut exposing ply or cords. These tyres were addressed to allow a pass three days later, but the cluster of three dangerous or major tyre defects in a single visit points to either ageing rubber that had been left in service too long or impact damage, both of which warrant close scrutiny of the remaining sidewall condition. Recorded mileage of 66,166 miles over a nine-year life equates to an average of roughly 7,350 miles annually, which sits broadly within typical parameters for a vehicle of this age and class. There are no significant gaps in the testing record, with annual tests submitted consistently from 2021 through to 2026, indicating the car has remained in regular use rather than being laid up for extended periods. The mileage progression between tests appears steady, with no sudden jumps or unusually low accumulations between consecutive annual checks, which means wear-related component failure is more likely to follow normal service-life patterns rather than being skewed by long standing periods or high-intensity use. Mechanically, this kind of regular moderate usage tends to keep seals, flexible joints, and suspension components working rather than drying out, but it does mean standard service items such as bushes, anti-roll bar links, and exhaust mounting rubbers have all been subjected to consistent fatigue loading. For a prospective buyer, the priority on inspection should be the persistent exhaust leak. On a cold start, listen for a pronounced ticking or hissing from the front section of the exhaust system, particularly near the flexible joint where the downpipe meets the front pipe or catalytic converter area. With the engine running, check for any smell of exhaust gases entering the cabin, as a leaking front joint can allow fumes to be drawn past the bulkhead under certain ventilation conditions. Inspect the flexible section visually for any obvious cracking, splitting, or deformation of the woven braid, and examine the surrounding mounting rubbers for perishing, as a perished mounting will transmit vibration and accelerate joint failure. A test drive should also include a check for any increase in engine noise under load, which would suggest the leak has worsened since the last advisory. The tyre-related defects from 2025 should inform a careful inspection of the current set of tyres fitted. Check the production date stamps on all four tyres and confirm they are within a sensible age band, ideally under six years old, as the previous failures suggest rubber degradation was a factor. Examine the sidewalls closely for any signs of cracking, bulging, or scuffing, particularly on the rear pair given the structural separation recorded previously. Beyond the flagged items, the 2022 failure for fractured offside and nearside rear coil springs is worth noting, although there have been no further suspension advisories since, indicating the springs were replaced and the remainder of the suspension appears to have held up. On a test drive, listen for any knocking or clonking from the rear over speed bumps or rough surfaces, which would suggest worn suspension bushes or top mounts, and pay attention to any sagging at the rear when laden, a possible early indicator of spring fatigue returning. Finally, confirm that the wiper smearing noted in 2024 has been resolved, as persistent streaking can indicate worn wiper blades or a lightly scored windscreen.