Volvo Bus B8L3, B8R3, B8RL3 recall: Engine management system (EMS)/Enginecontrol module (ECM) software update
Yes – some of these vehicles are being recalled
- What's wrong
- On affected vehicles the Engine Management System (EMS) Software causes an error where the Malfunction Indication Lamp (MIL) will not indicate a defective Lambda sensor so the driver will not be alerted upon a failure resulting in a non-compliance to emissions regulation.
- What to do
- Contact a Volvo Bus dealer to book the free repair. Install updated software to the Engine Control Module (ECM).
Source: Driver and Vehicle Standards Agency (DVSA)
Check your reg on DVSA ↗
What’s wrong
On affected vehicles the Engine Management System (EMS) Software causes an error where the Malfunction Indication Lamp (MIL) will not indicate a defective Lambda sensor so the driver will not be alerted upon a failure resulting in a non-compliance to emissions regulation.
The fix
Install updated software to the Engine Control Module (ECM).
Vehicles affected
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| B8L3 | 30 Aug 2023 | 18 Jun 2024 | 33 |
| B8R3 | 22 Nov 2022 | 26 Jun 2024 | 128 |
| B8RL3 | 9 Jan 2023 | 28 May 2024 | 290 |
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 28 August 2025. This page summarises an official notice. Details can change – always follow the official notice.