2017 BMW 5 Series 2.0L Diesel · YH67 KSN

A persistent pattern of front suspension deterioration dominates the mechanical history of this 2017 BMW 5 Series, with shock absorber oil misting advisories appearing on both sides across multiple consecutive tests and ultimately culminating in a fail on 19 September 2025 for a serious nearside front shock absorber fluid leak. The vehicle subsequently returned to the test station ten days later on 29 September 2025 and passed with no defects recorded, indicating that replacement work was carried out in that short interval. The progression from light misting advisories in 2022 and 2023, to misting on both front units alongside slightly distorted front road wheels in 2024, and finally to a major failure in 2025, shows a worsening condition rather than an isolated incident. The advisory history also includes repeated mentions of damaged or restrictive under trays, which limits full visual inspection of underbody components at each annual test, and two instances of front tyres worn close to the legal limit on their edges, pointing to consistent front-end geometry or alignment considerations. Recorded mileage of 99,302 miles over approximately nine years equates to an annual accumulation of around 11,034 miles, which sits broadly within typical parameters for a vehicle of this age and class. There are no extended gaps in the testing record, with annual tests consistently recorded from 2022 through 2025, indicating the vehicle has remained in regular use rather than being laid up. At this mileage band, attention naturally shifts toward the cumulative wear of consumable and chassis components, and the advisory history reflects exactly that, with suspension dampers, tyres, and wheels all flagged over the test cycle. The absence of recorded brake, exhaust, or lighting advisories across the same period is notable, although the recurring under tray damage means that certain underbody components cannot be fully verified from the MOT data alone. For a prospective buyer, the primary inspection focus should be the front suspension assembly, particularly the condition and age of any replacement dampers fitted during the 2025 failure rectification. It is worth establishing whether pattern-matched units were installed on both sides, as the offside unit was also showing light misting prior to replacement. On a test drive, listen for clonking or knocking noises from the front end over uneven surfaces, harshness over bumps that suggests poor damping control, and excessive body roll during cornering, all of which can indicate worn dampers or top mount bearings. Inspect the front tyres closely for inner and outer edge wear, as the recorded edge wear pattern may still be present, and check that the wheel rims, particularly the nearside and offside fronts previously flagged as slightly distorted, remain true and free of further impact damage. A physical inspection of the under trays is essential, as their damaged condition has restricted component visibility at multiple tests. Request that they be removed or loosened to allow examination of the engine oil sumps, steering rack, front subframe mounting points, and lower control arm bushes for any corrosion or wear, particularly given that this generation of 5 Series can be susceptible to subframe and suspension arm corrosion in the UK climate. Verify that the warning lights on the dashboard, including those related to suspension adaptive dampers if equipped, are extinguished after start-up, and ask for evidence that the recent shock absorber replacement was followed by a four-wheel alignment check, as this would address the previously noted edge tyre wear. Finally, confirm the service history independently, as the MOT records establish only the items flagged at annual test and do not reflect routine maintenance such as brake fluid changes, coolant renewal, or drivetrain servicing appropriate for a vehicle approaching the 100,000 mile mark.