27/09/2026
Finding the blockage is only part of the diagnosis.
Pictured is a restricted EGR filter, part of the exhaust gas recirculation system. Finding the restriction raises another question: why did it happen?
Soot-related problems can involve several factors. Frequent short journeys can limit the opportunity for the diesel particulate filter (DPF) to regenerate, while airflow or boost faults can contribute to excessive soot production.
The condition of the DPF matters too. On engines where the EGR circuit draws exhaust from downstream of the DPF, a damaged filter can allow soot through and contribute to blockage of the EGR B filter.
These are different issues, and establishing which are involved is essential. Replacing a restricted component alone can leave the underlying problem unresolved.
At Mastora, our experience with Jaguar and Land Rover vehicles helps us understand those connections, investigate the cause and explain what needs attention before agreeing a repair.
For diagnostic enquiries, message us on WhatsApp or call 01665 606745.
Mastora | Independent Jaguar & Land Rover Specialists
Alnwick, Northumberland