Engineer Motor Vehicles Maintenance case studies
Engineer Motor Vehicles Maintenance · Put your knowledge to work in context.
The Engineer Motor Vehicles Maintenance credential is a professional certification for technicians, workshop supervisors, and fleet maintenance engineers who diagnose, repair, and manage motor vehicle systems. It validates the practical and theoretical competence needed to keep cars, vans, and light commercial vehicles safe and serviceable. The Engineer Motor Vehicles Maintenance case studies are 5 cases and about 3,046 words.
1Timing-chain quote, overtime and a repeat repair
A small fleet workshop quoted a timing-chain replacement on a 2018 2.0 L diesel van at 6.5 labour hours, £68/h, parts £410 with 20% markup, and a 10% contingency. The job actually took 9.0 hours because the lower chain cover had to be removed after a broken bolt; two technicians worked 1.5 hours overtime at £102/h; an extra £95 seal kit was used; and the van returned after 600 km with a rattle traced to a mis-timed oil pump chain.
579 words, about 3 min2Low boost, black smoke and a worn turbocharger
A 2016 four-cylinder common-rail diesel van (2.2 L, 180,000 km) is brought in with reduced power, black smoke under load and a stored P0299 boost-deviation code. Road test shows no power above 2,500 rpm and a derate lamp.
619 words, about 3 min3Parasitic drain, a degraded AGM battery and added accessories
A 2020 petrol hatchback with stop-start and keyless entry has a 70 Ah AGM battery. After three days parked, the engine cranks slowly and the battery is at 11.8 V.
625 words, about 3 min4Brake pulsation, wheel-bearing play and a minimum safe repair
A 2019 rear-wheel-drive light commercial van (3.5 t) comes in after the driver reports a pulsating brake pedal, a pull to the right when braking from 70 km/h, and a metallic groan from the front left. Inspection: front left outer pad 3 mm, inner pad 8 mm; right outer 7 mm, inner 7 mm; front left disc thickness 26.8 mm (minimum 28.0 mm), runout 0.11 mm (max 0.05 mm); front right disc 29.1 mm, runout 0.03 mm; left front wheel bearing axial play 0.12 mm (max 0.05 mm); caliper guide pins free; left flexible hose has no external cracks; brake fluid moisture 3.2% (max 3%); tyres matched, pressures correct.
624 words, about 3 min5Bore measurement, thermal error and a low-cost overhaul decision
During overhaul of a 1.6 L four-cylinder aluminium engine with pressed-in cast-iron liners, a technician measures cylinder 2 with a bore gauge calibrated at 20 °C. Readings at 10 mm, 60 mm and 110 mm from the deck, in the thrust and axial axes, are: top thrust 79.04 mm, top axial 79.02; middle thrust 79.03, middle axial 79.02; bottom thrust 79.01, bottom axial 79.01.
599 words, about 3 min