Image available on the official notice.
Passenger cars (Mercedes-Benz ML350 and 9 other models) - Repair
Official notice
25 May 2022
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger cars (Mercedes-Benz ML350 and 9 other models) - Repair. Defect in the braking system (brake booster). ■ Defective component: Braking system (brake booster). ■ Condition of the structure, equipment or performance considered noncompliant with standards and its cause: Due to an inadequate design of the rubber sleeve fitted to the brake booster, moisture entering the gap between the sleeve and the brake booster housing may remain trapped for a prolonged period and corrode the housing. As corrosion progresses, holes may form in the housing, impairing the booster's function and increasing the required brake pedal force or extending braking distance. Further corrosion may cause the brake booster to break and, in the worst case, make braking with the brake pedal impossible. Published 2022-05-25.
What to do now
(Recall) 外-3411 ■ Remedy: Remove the rubber sleeve from all vehicles. Also inspect the brake booster housing for corrosion and perform a functional check on the booster in every vehicle with corrosion exceeding the specified limit. If inspection finds impaired performance due to a vacuum leak, replace the brake booster with an improved part. If performance is not impaired, inspect it again once parts are available and replace the brake booster with an improved part depending on the extent of corrosion. Users who notice anything abnormal with the brakes will be asked not to drive until the remedy has been performed.
Units affected
8,021
Recall number
外-3411
Official notice
2022-05-25
The hazard
The hazard
Defect in the braking system (brake booster). ■ Defective component: Braking system (brake booster). ■ Condition of the structure, equipment or performance considered noncompliant with standards and its cause: Due to an inadequate design of the rubber sleeve fitted to the brake booster, moisture entering the gap between the sleeve and the brake booster housing may remain trapped for a prolonged period and corrode the housing. As corrosion progresses, holes may form in the housing, impairing the booster's function and increasing the required brake pedal force or extending braking distance. Further corrosion may cause the brake booster to break and, in the worst case, make braking with the brake pedal impossible.
How to check if you're affected
How to check if you're affected
Compare the product name and identifiers below with the item you own. Check the official notice for the affected products and next steps.
Models
Recall Numbers
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Turn on automatic VIN checksAffected VINs (2)
Affected VINs (2)
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Check my VIN automaticallyAffected products
Affected products
Product 1
Units affected
Hazard
Where it was sold
Where it was sold
Retailer information is not currently available in RecallScope. Check the official notice for distribution details.
Location 1
Affected area 1
Company & contacts
Company & contacts
Brand: Mercedes-Benz. Contact: メルセデス・ベンツ日本株式会社. Phone 0120-086-880.
Source & status
Source & status
Recall details
Recall details
Recall number
Event id
Units affected
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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