Overview
| MLIT filing number | 1143511 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 8, 2018 |
| Manufacturer(s) | Mazda |
| Component | Other (Engine) |
| Production period | February 13, 2012 — July 2018 |
| Vehicles affected | 235,293 units |
Defect
The intake valve spring load setting is insufficient, leaving the intake valves with inadequate closing force. As a result, the valves cannot crush carbon deposits trapped between the valve and valve seat, causing compression loss. This makes engine operation unstable and, in the worst case, may cause the engine to stall.
Corrective action
On all vehicles, replace the intake valve springs with corrected parts. Because replacement is time-intensive, vehicles will be serviced in order from oldest to newest model year.
Affected models & chassis ranges
This filing lists 17 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 |
|---|---|---|
| 3DA-GJ2AP | Atenza | GJ2AP-400003 — GJ2AP-400012 |
| 3DA-GJ2AW | Atenza | GJ2AW-400004 — GJ2AW-400012 |
| 3DA-GJ2FP | Atenza | GJ2FP-400003 — GJ2FP-400013 |
| 3DA-GJ2FW | Atenza | GJ2FW-400006 — GJ2FW-400013 |
| 3DA-KF2P | ＣＸ－５ | KF2P-200005 — KF2P-207960 |
| 3DA-KG2P | ＣＸ－８ | KG2P-100037 — KG2P-117382 |
| LDA-BM2AP | AXELA | BM2AP-100004 — BM2AP-100349 |
| LDA-BM2AS | AXELA | BM2AS-100007 — BM2AS-101509 |
| LDA-BM2FP | AXELA | BM2FP-100002 — BM2FP-201021 |
| LDA-BM2FS | AXELA | BM2FS-100006 — BM2FS-202741 |
| LDA-GJ2AP | Atenza | GJ2AP-100010 — GJ2AP-301008 |
| LDA-GJ2AW | Atenza | GJ2AW-100007 — GJ2AW-301584 |
| LDA-GJ2FP | Atenza | GJ2FP-100014 — GJ2FP-302443 |
| LDA-GJ2FW | Atenza | GJ2FW-100012 — GJ2FW-303000 |
| LDA-KE2AW | ＣＸ－５ | KE2AW-100017 — KE2AW-217477 |
| LDA-KE2FW | ＣＸ－５ | KE2FW-100009 — KE2FW-221328 |
| LDA-KF2P | ＣＸ－５ | KF2P-100029 — KF2P-131275 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
エンジンの吸気側バルブスプリングにおいて、スプリング荷重の設定が不適切なため、吸気バルブの閉じ力が弱く、吸気バルブとバルブシート間に挟まる煤を押し潰すことができず、圧縮不良となることがある。そのため、エンジン回転が不安定になり、最悪の場合、エンジンが停止するおそれがある。
改善措置
全車両、吸気側バルブスプリングを対策品と交換する。なお、交換に時間を要すため、年式の古い車両から順次交換する。
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=3004359