2006 Mercedes-Benz B-Class 1.7L Petrol · LB56 ORW

This twenty-year-old Mercedes-Benz B-Class presents a mixed but notably improving mechanical record in its later years, tempered by a recurring pattern of rear suspension and braking component wear that has now accumulated across the most recent tests. The 2026 test was conducted on 23 June and resulted in an initial failure due to an inoperative or malfunctioning engine management indicator lamp, before being re-presented and passing later the same day under the same three advisories: corroded rear coil springs both sides, pitted and worn rear brake discs both sides, and worn rear suspension arm pins or bushes both sides. The corrosion and brake disc defects were first flagged in 2024, while the rear arm bushes are a new advisory for 2026, suggesting a gradual worsening of the rear axle condition rather than any single sudden deterioration. Two earlier failures in 2021 and 2022 recorded major defects around front suspension components, drive shaft boots, stop lamps and indicator colour, plus a dangerous tyre structure failure and illegal tread depth, but these appear to have been rectified as no related advisories have recurred in the more recent tests. Mileage accumulation of around 6,435 miles per year over the vehicle's twenty-year life sits broadly in line with typical usage for its age, and the gaps between tests in 2022 and 2023 are short and consistent with routine annual MOT scheduling rather than extended lay-ups. The 2021 to 2022 interval shows roughly normal progression, and the jump from the 2024 test to the 2026 entry is slightly longer than the standard twelve months but not suggestive of significant off-road storage. At 128,703 recorded miles, the vehicle sits in a band where mid-life consumable wear on a B-Class commonly manifests as rear trailing arm and spring corrosion, exhaust and subframe surface oxidation, and brake disc lipping or pitting, all of which are visible in the advisory trail. A prospective buyer should focus the physical inspection and test drive on the rear axle assembly, as three separate components there were flagged at the latest test. Listen for clonks or thuds from the rear over uneven surfaces and speed bumps, which would indicate the worn bushes have progressed beyond advisory tolerance and are allowing measurable play; similarly, any sagging of the rear ride height or uneven stance could indicate the corroded coil springs have weakened to the point of replacement. The rear brake discs should be inspected for a pronounced outer lip and visible grooves, as pitted surfaces will produce brake pedal judder under firm application and extended stopping distances, particularly on wet roads. The front suspension, which previously failed on an offside lower arm ball joint in 2023, warrants a careful check for any renewed knocking through the steering when turning at low speed over rough tarmac, and the inner CV boots should be visually examined for splits or grease deposits behind the front wheels. During the road test, pay particular attention to the engine management lamp, given that it was recorded as inoperative or showing a malfunction at the 2026 entry; a persistent MIL at idle or during driving would suggest the underlying fault was not properly resolved before the re-test. Verify all stop lamps and rear direction indicators function correctly and display the correct amber colour, as these were major failures in 2022 and 2023. Given the 2022 dangerous failure on a bulging nearside front tyre, inspect both front tyres closely for sidewall bulges, cracks or uneven inner-edge wear, and confirm tread depth exceeds 3mm across the central three-quarters of the tread. Finally, a floor inspection for fluid leaks, particularly around the rear shock absorbers which showed light oil misting in 2024, and a check for any developing corrosion on underbody structural members, would complete a proportionate appraisal of this vehicle's roadworthiness.