Engine management light diagnostics on a 2016 BMW 320d in Coningsby

Vehicle: 2016 BMW 320d (Diesel)Town: Coningsby · Service: Diagnostics · Date: 2026-05-09Time on site: 1 hour · Price: from £75 (diagnostic)What the customer reportedEML had been on for two weeks. Mild loss of power but no limp mode. Owner had been quoted £900 by a main dealer without inspection.What Drova foundOBD scan returned P0401 (EGR insufficient flow). Live data confirmed restricted EGR cooler. No injector or DPF faults present.Work carried out

Full diagnostic scan with live data logging

Visual and pressure check of EGR system

Written quote provided for EGR cooler clean/replace

Customer kept fault report whether or not work proceeded

OutcomeCustomer received a defensible diagnosis with photos and live data before committing to repair — saving them from an unnecessary higher quote elsewhere.

I'd been quoted three times what Drova charged, and Drova actually showed me the data.

James R., Coningsby

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