2018 BMW 5 Series 2.0L Diesel · WM68 ADX

A pattern of developing front-end wear has begun to define this 2018 BMW 5 Series, with the most recent test on 7 August 2026 recording a pass alongside advisories for light oil misting on the offside front shock absorber and a non-excessive oil leak. Earlier tests in 2025 repeated the shock absorber advisory and added warnings about nearside front inner brake pads wearing thin on both sides, alongside inner-edge tyre wear on the front nearside and rear nearside. The 21 July 2025 test stands out as the only failure in the recorded history, caused by a dangerous bulge on the offside front outer tyre due to structural separation, though the other advisories were carried forward unchanged. The trend across the seven recorded tests shows a clean early history from 2021 through 2023 with three consecutive passes and no defects, followed by an accumulation of front-axle advisories from 2024 onwards, suggesting that the wear is recent and progressive rather than a long-standing concern. With eight years on the road and 128,651 recorded miles, the vehicle averages roughly 16,081 miles annually, which sits at the upper end of typical mileage for its age. The testing record shows annual MOTs since 2021, with no multi-year gaps and broadly consistent annual mileage accumulation consistent with regular high-mileage use. This level of use accelerates wear on consumables such as brake pads, tyres, and suspension dampers, and aligns with the type of component-level advisories that have begun to emerge from the front axle. The most recent advisory for an oil leak, combined with the recurring shock absorber misting, suggests that attention to fluid sealing and damper condition will be increasingly important if mileage continues at this rate. For a prospective buyer, the offside front shock absorber should be a priority inspection point, as light oil misting recorded in both 2025 tests and again in 2026 indicates ongoing seal degradation that typically progresses to more visible weeping and reduced damping efficiency. On a test drive, pay attention to any clonking or looseness over uneven surfaces, excessive body roll through faster corners, or a persistently harsh ride that does not settle, as these can indicate the damper is no longer controlling the wheel effectively. The oil leak flagged in the latest test warrants a physical under-bonnet inspection for fresh residue around the engine and sump area, with a check of fluid levels to establish whether the leak is steady or worsening, and a note of any bluish smoke from the exhaust on startup which could point toward valve stem seal wear given the mileage. The brake and tyre advisories from 2025, particularly the front inner pad wear and the inner-edge tyre wear, should prompt a close look at the front suspension and steering geometry. Inner-edge tyre wear on both nearside front and rear axles can indicate worn suspension bushes, weak torsion bars, or alignment issues that have developed under the vehicle's high annual mileage. On a test drive, listen for clonking or knocking from the front end over speed bumps and rough roads, and check for steering wander, pulling to one side, or uneven steering self-centring, as any of these would suggest the suspension components underpinning those tyre wear patterns need replacement. The dangerous tyre failure in mid-2025 is worth confirming has been fully resolved with a quality replacement, and the runflat advisory from 2024 should be checked against the current tyre specification to ensure all four tyres are of compatible type, particularly as mismatched runflat and non-runfit tyres affect handling predictability. Given the mileage and the recent cluster of front-axle advisories, budgeting for replacement front brake pads, fresh tyres, and a thorough inspection of the front strut assemblies would be a prudent starting point for any negotiation.