In October 2019, UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Cooling System, covering the Quon. The filing affects 1,075 vehicles manufactured between July 16, 2010 and August 28, 2017.
Overview
| MLIT filing number | 1145840 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | October 17, 2019 |
| Manufacturer(s) | UD Trucks |
| Component | Cooling System |
| Production period | July 16, 2010 — August 28, 2017 |
| Vehicles affected | 1,075 units |
Filing in context
The Cooling System is the most frequently cited component category in this archive, appearing in 34 of its 4,890 filings. This filing is one of 27 UD Trucks notifications from 2019 in this archive. For scale, 2,767 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 7 years and 1 month.
Defect
On large low-floor trucks with a tandem front axle, the radiator lower hose is improperly assembled, leaving insufficient clearance between the hose and the engine under cover. As the hose expands during normal use, vibration of the engine under cover at idle causes the two components to contact and abrade the hose. If use continues in this condition, the hose may crack and coolant will leak. In the worst case, this can result in engine overheating.
Corrective action
On all vehicles, inspect and correct the radiator lower hose installation, and replace the engine under cover with the corrected part. If the radiator lower hose shows damage, replace it with a new unit.
Affected models & chassis ranges
This filing lists 6 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| LDG-CG5ZE | QUON | CG5ZE-000102 — CG5ZE-000289 |
| LKG-CG5YE | QUON | CG5YE-000101 — CG5YE-010014 |
| QDG-CG5ZE | QUON | CG5ZE-000172 — CG5ZE-030170 |
| QKG-CG5YE | QUON | JNCMM60G0GU002043 — JNCMM60G6HU020595 |
| QKG-CG5ZE | QUON | JNCMM60G5GU000174 — JNCMM60G3HU025852 |
| QPG-CG5ZE | QUON | CG5ZE-030132 — CG5ZE-030169 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラック低床前輪２軸の冷却装置において、ラジエータロアホースの組付け方法が不適切なため、当該ホースとエンジンアンダーカバーの隙間が狭いものがある。そのため、使用過程で当該ホースが膨張した場合、エンジンアイドリング時においてエンジンアンダーカバーが振動することにより双方が干渉して、当該ホースが損傷することがある。そのままの状態で使用を続けると、当該ホースが亀裂して冷却水が漏れ、最悪の場合、オーバーヒートに至るおそれがある。
改善措置
全車両、ラジエータロアホースの組付け状態を確認・修正し、エンジンアンダーカバーを対策品と交換する。なお、ラジエータロアホースに損傷があるものは新品と交換する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3004605
Related recalls
Same manufacturer, same component
Other UD Trucks filings involving the Cooling System, closest to this one by filing date.
Cooling System — affects 708 vehicles.
Open recall detail →Cooling System — affects 31 vehicles.
Open recall detail →Cooling System — affects 10,248 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other (frame/body) — affects 295 vehicles.
Open recall detail →Body Structure (Roof Rail Rivet Cover) — affects 1,697 vehicles.
Open recall detail →Other (Frame/Body) — affects 307 vehicles.
Open recall detail →Fuel Tank — affects 503 vehicles.
Open recall detail →Body — affects 514 vehicles.
Open recall detail →All UD Trucks recalls · All 2019 recalls · Recall Archive home