Daimler Buses Gmbh recalls

The wrong bevel gear may be installed on the front axle steering. The required gear ratio for HD HDH SHD RHD and Intouro is 1.117:1. A Bevel gear with ratio of 1:1 was installed. For eCitaro models the reverse misinstallation may have occurred. If a 1:1 bevel gear is installed instead of 1.117:1 the wheel steering angles required in accordance with UN ECE-R 79 (section 6.2.5) in the event of a steering system failure can no longer be achieved. Since the calculated vehicle movement does not exactly match the actual vehicle movement in a event of fault unauthorized intervention by the ESP or in articulated buses the articulation angle control (ATC) is also conceivable. This could lead to a sudden reduction of drive torque and braking of individual wheels which may impair the ability to maintain the intended driving direction. A risk to other road users therefore cannot be ruled out.

Fix: Remedy is to check the bevel gear and replace them with a correct version if necessary

3 vehicles · built 1 Sep 2025 to 30 Sep 2025

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

13 vehicles · built 1 Jan 2024 to 30 Sep 2025

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

382 vehicles · built 1 Feb 2023 to 30 Jun 2026

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

153 vehicles · built 1 Mar 2023 to 30 Jun 2026

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

169 vehicles · built 1 Mar 2023 to 30 Jun 2026

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

144 vehicles · built 1 Mar 2023 to 30 Jun 2026

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

39 vehicles · built 1 Jan 2024 to 31 Dec 2025

On vehicles equipped with the B2E electrical/electronic architecture and the ICUC Gen6 instrument cluster certain status and fault messages are not consistently displayed to the driver in the ICUC. The root cause is an error in the adaptation of the filter logic for messages originating from control units and the Vehicle Message Matrix (VMM) during the transition from ICUC Gen5 to ICUC Gen6. Among others fault messages from the ACM (Aftertreatment Control Module) and the VRDU3 (Video Radar Decision Unit) control units are affected. As a result it cannot be ruled out that individual warning messages required for the safe and proper operation of the vehicle and/or mandated by legislation may not be displayed reliably.

Fix: Remedy is to correct the failure through a software update

1 vehicles · built 1 Nov 2023 to 1 Nov 2023

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.

Fix: Remedy is to replace the door control valves on all doors on affected vehicles.

1 vehicles · built 1 Jul 2025 to 1 Jul 2025

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.

Fix: Remedy is to replace the door control valves on all doors on affected vehicles.

27 vehicles · built 1 Mar 2025 to 31 May 2025

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.

Fix: Remedy is to replace the door control valves on all doors on affected vehicles.

15 vehicles · built 1 Mar 2025 to 30 Jun 2025

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.

Fix: Remedy is to replace the door control valves on all doors on affected vehicles.

7 vehicles · built 1 Apr 2025 to 31 May 2025

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.

Fix: Remedy is to replace the door control valves on all doors on affected vehicles.

13 vehicles · built 1 Mar 2025 to 30 Jun 2025

The EU directive for commercial vehicles with the Euro 6 emissions standard stipulates that the NOx sensor signal is regularly checked for plausibility. The IUPR monitor (In Use Performance Ratio) was defined for this purpose. At a minimum 50% of vehicles in a class must have this monitor be active at least 10% of the possible time. This is not the case for the affected vehicles. Cause Parameter error in data record creation.

Fix: To remedy this an update software version in engine management (MCM) and exhaust gas aftertreatment (ACM) control units is required.

191 vehicles · built 1 Dec 2017 to 31 May 2019

The EU directive for commercial vehicles with the Euro 6 emissions standard stipulates that the NOx sensor signal is regularly checked for plausibility. The IUPR monitor (In Use Performance Ratio) was defined for this purpose. At a minimum 50% of vehicles in a class must have this monitor be active at least 10% of the possible time. This is not the case for the affected vehicles. Cause Parameter error in data record creation.

Fix: To remedy this an update software version in engine management (MCM) and exhaust gas aftertreatment (ACM) control units is required.

11 vehicles · built 1 Jul 2018 to 30 Jun 2019

The EU directive for commercial vehicles with the Euro 6 emissions standard stipulates that the NOx sensor signal is regularly checked for plausibility. The IUPR monitor (In Use Performance Ratio) was defined for this purpose. At a minimum 50% of vehicles in a class must have this monitor be active at least 10% of the possible time. This is not the case for the affected vehicles. Cause Parameter error in data record creation.

Fix: To remedy this an update software version in engine management (MCM) and exhaust gas aftertreatment (ACM) control units is required.

9 vehicles · built 1 Apr 2017 to 30 Sep 2018

The EU directive for commercial vehicles with the Euro 6 emissions standard stipulates that the NOx sensor signal is regularly checked for plausibility. The IUPR monitor (In Use Performance Ratio) was defined for this purpose. At a minimum 50% of vehicles in a class must have this monitor be active at least 10% of the possible time. This is not the case for the affected vehicles. Cause Parameter error in data record creation.

Fix: To remedy this an update software version in engine management (MCM) and exhaust gas aftertreatment (ACM) control units is required.

621 vehicles · built 1 Feb 2017 to 31 May 2019

It has been determined that due to a parameter error of the VRDU3 in the event of a fault in the SideGuardAssist assistance system (for example in the form of a sensor fault) the driver is not notified of the assistance system fault as prescribed by UN ECE R 151. As the driver is not informed of the failure of the assistance function the protection of particularly vulnerable road users may be impaired.

Fix: Remedy is by way of a Software update.

35 vehicles · built 1 Jan 2025 to 30 Apr 2025

It has been determined that due to a parameter error of the VRDU3 in the event of a fault in the SideGuardAssist assistance system (for example in the form of a sensor fault) the driver is not notified of the assistance system fault as prescribed by UN ECE R 151. As the driver is not informed of the failure of the assistance function the protection of particularly vulnerable road users may be impaired.

Fix: Remedy is by way of a Software update.

3 vehicles · built 1 Feb 2025 to 28 Feb 2025

It has been determined that due to a parameter error of the VRDU3 in the event of a fault in the SideGuardAssist assistance system (for example in the form of a sensor fault) the driver is not notified of the assistance system fault as prescribed by UN ECE R 151. As the driver is not informed of the failure of the assistance function the protection of particularly vulnerable road users may be impaired.

Fix: Remedy is by way of a Software update.

8 vehicles · built 1 Jan 2025 to 31 Mar 2025

It has been determined that due to a parameter error of the VRDU3 in the event of a fault in the SideGuardAssist assistance system (for example in the form of a sensor fault) the driver is not notified of the assistance system fault as prescribed by UN ECE R 151. As the driver is not informed of the failure of the assistance function the protection of particularly vulnerable road users may be impaired.

Fix: Remedy is by way of a Software update.

13 vehicles · built 1 Jan 2025 to 31 Mar 2025

On affected vehicles the end pieces of the design trims installed on the left and right of the air conditioning system may tear and fall.

Fix: Remove the affected trim and replace at a later date when new improved parts are available

42 vehicles · built 1 Apr 2022 to 31 Aug 2023

On affected vehicles the end pieces of the design trims installed on the left and right of the air conditioning system may tear and fall.

Fix: Remove the affected trim and replace at a later date when new improved parts are available

67 vehicles · built 1 Apr 2022 to 31 Aug 2023

The data record of the Instrument control unit has software bug issues.

Fix: Re-parameterise the Instrument control unit with the latest data software record.

1 vehicles · built 1 Jan 2018 to 31 Dec 2018

Non-approved screws fitted to the brake anchor plate

Fix: Check the screws and replace if necessary.

1 vehicles · built 8 Mar 2007 to 8 Mar 2007

The rigid fuel return pipe may break at the fuel pump module due to engine vibrations. This will allow fuel to leak onto the road surface which will be a hazard to other road users. Fuel may also leak onto hot engine parts with a risk of fire.

Fix: On affected vehicles the rigid pipes are to be replaced with flexible fuel hoses which will cancel the effects of engine vibration.

111 vehicles · built 1 Dec 2013 to 31 Dec 2015

The bus bar of the fuse panel on the power distribution board (PDB) could be loose. This may cause faults in circuits associated with the fuse board circuits.

Fix: Check the PDB production period and if necessary replace the screws with new ones.

6 vehicles · built 1 Sep 2017 to 1 Dec 2017

The spacer clips on the flexible fuel lines in the engine compartment may become displaced or fall out.This could cause he fuel lines to chafe against each other and become damaged.

Fix: On affected vehicles Exchange clamp-type spacer clips for screw-type spacer brackets.

63 vehicles · built 1 Jun 2006 to 1 Feb 2009

On vehicles fitted with the four cylinder (OM651) engine the high pressure fuel lines may not have been manufactured to specifications. These lines may crack and allow fuel to leak. If an ignition source is present there is a risk of fire.

Fix: On affected vehicles replace high pressure fuel lines.

4 vehicles

The retaining bolts securing the front seat belts to the 'B' Pillar may not have been tightened to the correct specification. They may work loose and the seat belt could detach.

Fix: On affected vehicles check retaining bolts for tightness and correct if necessary.

6 vehicles

On affected vehicles the bonding securing the service panel under the driver's side window may fail and the panel may detach.

Fix: Bond new reinforcement frames to existing panel/framework.

178 vehicles · built 1 Feb 2010 to 1 Apr 2014

The oil feed to the turbo may fracture with the attendant risk that an engine bay fire might ensue.

Fix: Affected vehicles will have the turbo oil feed pipe replaced with a flexible version.

331 vehicles

A fault within the ventilation fan relay may cause a ciruit board overload with the remote risk of overheating.

Fix: Recall affected vehicles for modifications to the circuit board and wiring.

45 vehicles · built 1 Jan 1999 to 31 Dec 2001