# Service bulletin BS5209ER1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10206977
- Published by NHTSA: 2022\-02\-04
- Manufacturer's number: BS5209ER1
- Manufacturer's date: 2022\-01\-27
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Rotron coolant pump. Burr on the flange might result in a coolant leakage. Nord\-Lock washers may be missing.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10206977-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10206977-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2021 NOVA BUS LFS

## Recalls for the same vehicles and component

- [25V822000](/recalls/nhtsa/25V822000.md), 2025-11-28: ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
- [24V231000](/recalls/nhtsa/24V231000.md), 2024-03-27: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
- [22V416000](/recalls/nhtsa/22V416000.md), 2022-06-13: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
- [2021458](/recalls/tc/2021458.md), 2021-07-27: Engine

## Other bulletins for the same vehicles and component

- [BS5580E](/bulletins/10253692.md), 2024-04-30, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. One fire suppression system pipe may be installed backwards and interfere with an alternator cable, creating friction that could damage one or both components.
- [FT5554](/bulletins/10251113.md), 2024-03-04, Service bulletin: ENGINE AND ENGINE COOLING. The Cabin Coolant Level Sensors for the LOW and HIGH levels are swapped.
- [BS5511E](/bulletins/10247619.md), 2023-12-22, Service bulletin: ENGINE AND ENGINE COOLING. The EGR cooling hose N95062\-48 is not rated for the engine compartment temperature. Under certain conditions the EGR cooling hose may crack and cause coolant leak.
- [LI5427E](/bulletins/10247614.md), 2023-12-22, Service bulletin: ENGINE AND ENGINE COOLING. Improved durability of engine\-side heat exchanger hoses.
- [BS5469E](/bulletins/10247612.md), 2023-12-22, Service bulletin: ENGINE AND ENGINE COOLING. The belt guard hinge may crack.
- [FT5448](/bulletins/10244594.md), 2023-11-01, Service bulletin: ENGINE AND ENGINE COOLING; STEERING. Rework allied motion e\-Steering motor. 24V e\-steering power supply threads length tolerances might not be respecting to the drawing specifications.
- [BS5447E](/bulletins/10244593.md), 2023-11-01, Service bulletin: ENGINE AND ENGINE COOLING; STEERING. Rework allied motion e\-Steering motor. 24V e\-steering power supply threads length tolerances are not respect to standard.
- [FT5361](/bulletins/10233272.md), 2023-04-03, Service bulletin: ENGINE AND ENGINE COOLING. Coolant pipe assy failing. The adaptor on the Coolant pipe assembly between the engine and circulation pump broke in service at the beginning of the copper thread.
- [BS5320ER1](/bulletins/10233268.md), 2023-04-03, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Fire light coming on in the dash, Fire detection system
- [BS5380E](/bulletins/10233263.md), 2023-04-03, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Fire light coming on in the dash, Fire detection system.

JSON: [/v1/bulletins/10206977](/v1/bulletins/10206977)

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