In November 2019, UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Exhaust Emissions Reduction System, covering the Quon. The filing affects 5,351 vehicles manufactured between April 28, 2017 and June 2018.
Overview
| MLIT filing number | 1146160 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 21, 2019 |
| Manufacturer(s) | UD Trucks |
| Component | Exhaust Emissions Reduction System |
| Production period | April 28, 2017 — June 2018 |
| Vehicles affected | 5,351 units |
Filing in context
This is the only filing in the archive that cites the Exhaust Emissions Reduction System as the affected component. This filing is one of 27 UD Trucks notifications from 2019 in this archive. For scale, 1,916 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 1 year and 2 months.
Defect
On heavy-duty trucks equipped with a urea selective catalytic reduction (urea SCR) system, improper machining of the guide sleeve inside the urea solution pump allows pump operating pressure to initiate a crack at the tip of the sleeve. The sleeve tip may then fracture, impairing urea solution pump function. As a result, a warning lamp illuminates and nitrogen oxide (NOx) emissions may exceed the regulatory limit.
Corrective action
On all vehicles, replace the urea solution pump with a corrected part.
Affected models & chassis ranges
This filing lists 22 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 |
|---|---|---|
| 2DG-CF5AL | QUON | JNCMBN0B7JU032894 — JNCMBN0B5JU033929 |
| 2DG-CZ5BL | QUON | JNCMBP0E4JU032938 — JNCMBP0E6JU034061 |
| 2PG-CD5AL | QUON | JNCMBN0C7HU026287 — JNCMBN0C0JU028811 |
| 2PG-CD5BA | QUON | JNCMBN0C8HU021910 — JNCMB02C7JU034038 |
| 2PG-CD5BL | QUON | JNCMB02C3HU025945 — JNCMB02C7JU033813 |
| 2PG-CD5CA | QUON | JNCMB02C1HU016208 — JNCMB02C0JU034057 |
| 2PG-CD5CE | QUON | JNCMB02C6JU031003 — JNCMB02CXJU034065 |
| 2PG-CD5CL | QUON | JNCMB02C6HU018195 — JNCMBP0C5JU034048 |
| 2PG-CG5BA | QUON | JNCMB02G9HU025953 — JNCMB02G9JU033279 |
| 2PG-CG5BL | QUON | JNCMB02G0JU033297 |
| 2PG-CG5CA | QUON | JNCMB02GXHU017229 — JNCMB02GXJU034070 |
| 2PG-CG5CE | QUON | JNCMB02G1JU031283 — JNCMB02G9JU034030 |
| 2PG-CG5CL | QUON | JNCMB02G5HU022337 — JNCMB02G3JU034055 |
| 2PG-CW5AL | QUON | JNCMB02D5HU017046 — JNCMB02D6JU034069 |
| 2PG-CW5BL | QUON | JNCMB02D1HU022941 — JNCMB02D6JU034010 |
| 2PG-CW5CA | QUON | JNCMB02D7HU022507 — JNCMB02D4JU034040 |
| 2PG-CW5CL | QUON | JNCMBP0D0HU022005 — JNCMB02D8JU033943 |
| 2PG-CX5BA | QUON | JNCMB02D6HU024538 — JNCMB02D8JU033683 |
| 2PG-CX5BL | QUON | JNCMB02D3HU026151 — JNCMB02D4JU033745 |
| 2PG-GK5AAB | QUON | JNCMBP0A3HU022537 — JNCMB22A8JU034060 |
| 2PG-GK5AAD | QUON | JNCMB22A4JU027834 — JNCMB22A6JU033893 |
| 2PG-GK5AAE | QUON | JNCMB22A7JU029657 — JNCMB22A7JU033921 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラックの尿素選択還元型触媒システム（尿素ＳＣＲシステム）において、尿素水ポンプ内ガイドスリーブの加工が不適切なため、ポンプ作動時の圧力によって当該スリーブ先端部に亀裂が発生することがある。そのため、当該スリーブ先端部が破断し尿素水ポンプの機能が損なわれ、警告灯が点灯するとともに排出ガス中の窒素酸化物（ＮＯｘ）の排出値が基準値を超えるおそれがある。
改善措置
全車両、尿素水ポンプを対策品に交換する。
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=3004637
Related recalls
Same manufacturer, close in filing date
Other UD Trucks filings closest to this one by filing date.
Wiring — affects 10,788 vehicles.
Open recall detail →Other (Frame / Body) — affects 82 vehicles.
Open recall detail →Body — affects 712 vehicles.
Open recall detail →Fuel Tank — affects 504 vehicles.
Open recall detail →Body — affects 514 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other (Control System) — affects 92 vehicles.
Open recall detail →Brake system (air brake) — affects 2,933 vehicles.
Open recall detail →Other (Control Device) — affects 26,885 vehicles.
Open recall detail →Other Equipment — affects 34,123 vehicles.
Open recall detail →Propeller Shaft — affects 17,587 vehicles.
Open recall detail →All UD Trucks recalls · All 2019 recalls · Recall Archive home