Daimler Buses recall: Emergency Valve may malfunction
- What's wrong
- It has been determined that the external emergency valves may malfunction. The issue is caused by an excessively large bore diameter in a component of the door control valve. Because the diameter lies outside the specified tolerance (0.74 mm instead of the required 0.65 mm)…
- What to do
- Contact a Daimler Buses dealer to book the free repair. Remedy is to replace the door control valves on all doors on affected vehicles.
What’s wrong
It has been determined that the external emergency valves may malfunction. The issue is caused by an excessively large bore diameter in a component of the door control valve. Because the diameter lies outside the specified tolerance (0.74 mm instead of the required 0.65 mm) compressed air flows back faster than the system can vent. Consequently the pneumatic self‑holding mechanism does not release and the door can only be opened if the internal emergency valve is actuated first. If the external emergency valve is actuated first the defect may prevent the door from opening. In an emergency this could hinder the evacuation of passengers by rescue services.
The fix
Remedy is to replace the door control valves on all doors on affected vehicles.
Vehicles affected
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| SETRA S531DT | 1 Jul 2025 | 1 Jul 2025 | 1 |
| Tourismo | 1 Mar 2025 | 31 May 2025 | 27 |
| Tourismo L | 1 Mar 2025 | 30 Jun 2025 | 15 |
| TOURISMO M/2 | 1 Apr 2025 | 31 May 2025 | 7 |
| TOURISMO M/3 | 1 Mar 2025 | 30 Jun 2025 | 13 |
How to check your vehicle
Use the official DVSA checker with your registration number to see if your exact vehicle is included. If it is, the manufacturer should have written to the registered keeper. The repair is free, even if you bought the vehicle second-hand.
Updated 24 June 2026. This page summarises an official notice. Details can change – always follow the official notice.