Written question asked by Lord Patten (Conservative) on Monday, 6 July 2026, in the House of Lords. It was due for an answer on Monday, 20 July 2026. It was answered by Lord Hendy of Richmond Hill (Labour) on Wednesday, 15 July 2026 on behalf of the Department for Transport.

West of England Line

Question: To ask His Majesty's Government whether they intend to replace the diesel Class 158 passenger trains used on the mainline railway from Waterloo to Exeter; and if so, when.

Answer

The Class 158 and Class 159 diesel trains used on services between London Waterloo and Exeter are expected to be replaced as part of longer-term plans to modernise the rail fleet. South Western Railway, working with the Department for Transport, is developing proposals for their replacement; however, no specific timetable for replacement has yet been confirmed. In the meantime, these fleets are undergoing a phased refurbishment programme to improve reliability and passenger experience, including upgraded interiors, improved passenger information systems and the introduction of at-seat power. This ensures the trains remain fit for service while longer-term decisions are taken.

The Government is also developing a long-term rolling stock and infrastructure strategy, to be published later this year, which will set out Great British Railways’ future rolling stock requirements, including the approach to replacing older diesel trains.

Secondary information

Type: Written question
Reference: HL1695
Session: 2026-27
Subjects: Rolling stock West of England line
Link: View this Written question on www.parliament.uk

West of England Line

Secondary information

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