2018 Mercedes-Benz Vito 1.6L Diesel · NG68 AUU

The mechanical record for this 2018 Mercedes-Benz Vito is dominated by a recurring pattern of brake-related defects, oil leaks, and tyre wear, alongside two separate failures involving the parking brake system and engine management warning. The most recent assessment on 12 February 2026 recorded a pass, but included a minor defect for the nearside windscreen wiper blade and an advisory for thinning front brake pads, continuing the trend seen across the previous four tests. Notably, a failure on 11 February 2025 was primarily driven by dangerously low parking brake efficiency and excessive lever movement indicating incorrect adjustment, while an earlier failure on 12 February 2024 cited a fluctuating offside front service brake and an inoperative malfunction indicator lamp. An advisory for an oil leak, not deemed excessive, has been carried over across the 2024 and 2025 tests, suggesting a persistent seepage that has not yet been rectified between examinations. The 2026 pass represents a stable but not unblemished outcome, with the underlying brake wear and oil seepage remaining unresolved concerns. With 96,477 miles recorded against an eight-year age, this Vito has averaged roughly 12,060 miles annually, which is high for a light van of this vintage. There is a clear gap in testing between February 2023 and December 2021, indicating either a period off the road or a missed test deadline, while mileage accumulation between the recorded tests suggests consistent commercial or fleet-style use rather than sporadic light driving. High annual mileage on a commercial platform typically accelerates wear on suspension components, brake friction materials, drivetrain mountings, and turbo or clutch hardware where applicable. Combined with the observed advisory patterns, the usage profile points toward a working vehicle that has been driven hard, with consumable components showing the expected wear curve for its mileage bracket. For a prospective buyer, the persistent oil leak advisory warrants a physical inspection underneath the engine bay to identify the source, whether it originates from the valve cover gasket, sump seal, or a turbo oil line, and to check for fresh residue on the underside that would suggest the leak is worsening rather than stable. On a test drive, listen for any timing chain rattle on cold start, monitor the dashboard for the malfunction indicator lamp reappearing, and observe for any hesitation, misfire, or restricted power output which would correlate with the 2024 engine management failure. Given the history of fluctuating service brake performance and excessive parking brake movement, a thorough check of the handbrake mechanism, cable adjustment, and rear caliper operation is essential, along with a firm pull on a slope to confirm the parking brake holds the vehicle without excessive lever travel. The brake disc pitting advisory from 2024, combined with the 2026 advisory for thinning front pads, means the discs should be measured for thickness and run-out, as prolonged use on corroded friction surfaces can lead to judder under braking and reduced pedal feel. Tyre wear has been a recurring issue on the offside front, noted in two consecutive 2025 advisories for inner and edge wear, which typically indicates either incorrect tracking, worn suspension bushes, or a failing top mount or wishbone component. During a road test, pay particular attention to steering pull to the right, any knocking or clonking from the front suspension over uneven surfaces, and uneven tyre wear across the front axle on close visual inspection. Finally, confirm whether the previous advisories for oil leak have been addressed with new gaskets or seals, as ignoring a minor seep over multiple annual tests risks it developing into a more serious drop in fluid over the next service interval.