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メルセデス・ベンツ Lda-205014, 3Da-205014, 3Da-205014C, 3Da-205214, 3Da-205214C, 3Da-253915. Published by MLIT as 1233470 on 16 February 2022. Part: 冷却装置.

What the notice says ディーゼルエンジンに搭載されているクーラントポンプにおいて、軸受けシールの設計が不適切なため、作動の制御が行われている負圧回路へ冷却水が浸入し、負圧回路の関連部品が作動不良を起こすことがある。そのため、エンジン警告灯(mil)が点灯する、出力が低下する、ブレーキ倍力装置の機能が低下する等の不具合が発生し、排気ガスの再循環装置(egr)制御用の電磁バルブに作動不良が発生した場合においては、mil点灯と共に排ガスが悪化し、更に短絡が発生すると発熱して周囲を溶損させることで、最悪の場合、火災に至るおそれがある。

Is your vehicle included? Check with your VIN at MLIT, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.

Notification number
1233470
Notified
16 February 2022
Make
Mercedes-Benz(メルセデス・ベンツ)
Sold as
C220d、C220d ステーションワゴン、GLC220d 4MATIC、GLC220d 4MATIC クーペ、GLE300d 4MATIC、GLE400d 4MATIC、GLE400d 4MATIC クーペ、S400d 4MATIC、GLS400d 4MATIC
Model codes
LDA-205014, 3DA-205014, 3DA-205014C, 3DA-205214, 3DA-205214C, 3DA-253915, 3DA-253915C, 3DA-253315, 3DA-253315C, 3DA-167119, 3DA-167119C, 3DA-167123, 3DA-167323, 3DA-223033, 3DA-223133, 3DA-167923
Part at fault
冷却装置
Vehicles covered
10,339
Filed as
Recall, imported vehicle
Register
Japan — Ministry of Land, Infrastructure, Transport and Tourism

What the ministry says is wrong

ディーゼルエンジンに搭載されているクーラントポンプにおいて、軸受けシールの設計が不適切なため、作動の制御が行われている負圧回路へ冷却水が浸入し、負圧回路の関連部品が作動不良を起こすことがある。そのため、エンジン警告灯(MIL)が点灯する、出力が低下する、ブレーキ倍力装置の機能が低下する等の不具合が発生し、排気ガスの再循環装置(EGR)制御用の電磁バルブに作動不良が発生した場合においては、MIL点灯と共に排ガスが悪化し、更に短絡が発生すると発熱して周囲を溶損させることで、最悪の場合、火災に至るおそれがある。

What is to be done about it

全車両、EGR制御用の電磁バルブを新品に交換し、エンジンコントロールユニットの制御プログラムを対策プログラムに書き換える。また、負圧回路の点検を行い、冷却水やエンジンオイルが浸入している関連部品は、新品に交換を行う。

The two passages above are quoted in Japanese because that is the language the ministry published them in. This site keeps the wording a register had when it was read, and does not translate a safety notice.

Source: Ministry of Land, Infrastructure, Transport and Tourism website (出典:国土交通省ウェブサイト), used under the Public Data License 1.0. This site gathered the record, grouped it by notification number and set it in English around the ministry's own words; the notice itself is unaltered. CarsMultiverse is not the ministry and not a safety authority. To act on this notice, use the ministry's own document.

The Japanese register on this site

メルセデス・ベンツ elsewhere in this register

メルセデス・ベンツ is named on 444 notices in the copy of MLIT’s register held here, of which these are the nearest to this one in time.

The same part: 冷却装置

171 notices in this register name 冷却装置. A defect that keeps returning under one heading is worth reading as a group rather than one notice at a time.

Reading this against the source

This page is what MLIT published in the recall notices it publishes, kept as it was read. The authority publishes only its current wording; if a notice is rewritten, the earlier version disappears there and is kept here. The whole register is at /japan, and how the reading is done is set out in the method.

This register keeps an index of its own for every maker and every year it holds: Japanese recalls on a Mercedes-Benz: 450 in the register, and 415 Japanese vehicle recall notifications filed in 2022.

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