In February 2017, Mitsubishi filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Starting system, covering the Aero Star. The filing affects 2 vehicles manufactured between February 2015 and February 16, 2015.
Overview
| MLIT filing number | 1139830 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | February 2, 2017 |
| Manufacturer(s) | Mitsubishi |
| Component | Starting system |
| Production period | February 2015 — February 16, 2015 |
| Vehicles affected | 2 units |
Filing in context
The Starting system is the most frequently cited component category in this archive, appearing in 21 of its 4,890 filings. This filing is one of 38 Mitsubishi notifications from 2017 in this archive. For scale, 4,782 of the 4,890 filings in this archive report a larger number of affected vehicles.
Defect
On large route buses, the rubber components used in the starter are made of an unsuitable material, and the flywheel ring gear has insufficient wear margin. Frequent engine starts by the idling stop-and-start system cause accelerated early wear of the ring gear. Continued operation in this condition causes the starter to spin without engaging, and in the worst case, the engine may become unable to start.
Corrective action
1. On all vehicles, replace the starter with the corrected part and inspect the flywheel ring gear for wear. If wear exceeds the service limit, replace the ring gear with a new unit. 2. Reprogram the idling stop-and-start system control software to the corrected specification for the wear-resistant ring gear.
Affected models & chassis ranges
This filing lists 2 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 |
|---|---|---|
| QDG-MP35FM | ふそうエアロスター | MP35FM-62001 |
| QKG-MP37FM | ふそうエアロスター | MP37FM-62001 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型路線バスにおいて、スタータに使用されているゴム部品の材質が不適切であること および フライホイールリングギヤの摩耗に対する余裕が不足しているため、アイドリング・ストップ＆スタート・システムによるエンジンの始動を頻繁に行うと、当該リングギヤが早期に摩耗するものがある。そのため、そのままの状態で使用を続けると、スタータの空転が発生し、最悪の場合、エンジンが始動不能となるおそれがある。
改善措置
① 全車両、スタータを対策品に交換すると共にフライホイールリングギヤの摩耗状況を点検し、使用限度を超えていた場合は新品のフライホイールリングギヤに交換する。 ② アイドリング・ストップ＆スタート・システムの制御プログラムを、フライホイールリングギヤの摩耗対策品に書き換える。
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=3003955
Related recalls
Same manufacturer, same component
Other Mitsubishi filings involving the Starting system, closest to this one by filing date.
Starting system — affects 607,429 vehicles.
Open recall detail →Starting system — affects 982 vehicles.
Open recall detail →Starting system — affects 38,537 vehicles.
Open recall detail →Starting system — affects 46 vehicles.
Open recall detail →Starting system — affects 1,310 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
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Open recall detail →Computer (Engine) — affects 1,720 vehicles.
Open recall detail →Computer (Engine) — affects 1,720 vehicles.
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Open recall detail →Other — affects 26 vehicles.
Open recall detail →All Mitsubishi recalls · All 2017 recalls · Recall Archive home