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Passenger vehicles (Mercedes-Benz G350d, others) - Repair
Official notice
19 Jun 2023
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger vehicles (Mercedes-Benz G350d, others) - Repair. Coolant pump defect. ■ Defective component and details: Due to an inappropriate bearing seal design in the coolant pump installed in diesel engines, coolant may enter the vacuum circuit used to control operation, causing related components in the vacuum circuit to malfunction. This may cause problems such as illumination of the engine malfunction indicator light (MIL), reduced power output, and reduced brake booster function. If the solenoid valve controlling the exhaust gas recirculation (EGR) system malfunctions, the MIL illuminates and exhaust emissions worsen. If a short circuit also occurs, heat may melt surrounding parts and, in the worst case, cause a fire. Published 2023-06-19.
What to do now
(Notification number) 外-3607
Recall number
外-3607
Official notice
2023-06-19
The hazard
The hazard
Coolant pump defect. ■ Defective component and details: Due to an inappropriate bearing seal design in the coolant pump installed in diesel engines, coolant may enter the vacuum circuit used to control operation, causing related components in the vacuum circuit to malfunction. This may cause problems such as illumination of the engine malfunction indicator light (MIL), reduced power output, and reduced brake booster function. If the solenoid valve controlling the exhaust gas recirculation (EGR) system malfunctions, the MIL illuminates and exhaust emissions worsen. If a short circuit also occurs, heat may melt surrounding parts and, in the worst case, cause a fire.
How to check if you're affected
How to check if you're affected
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Where it was sold
Where it was sold
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Company & contacts
Company & contacts
Brand: Mercedes-Benz. Contact: メルセデス・ベンツ日本株式会社.
Source & status
Source & status
Recall details
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Documents, notices & source
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