The service interval for the EAT8 gearbox in the DS7 Crossback is an important maintenance aspect that owners should be aware of to ensure the longevity and optimal performance of their vehicle.

1. Transmission Fluid Change: For the automatic transmission of the DS7, it is generally recommended that the transmission fluid be changed every 25,000 to 30,000 miles (approximately 40,000 to 48,000 kilometers) (Source: Start My Car).

2. User Recommendations: Additional insights from European forums suggest that while some users advocate for changing the gearbox oil every 60,000 kilometers, others recommend intervals ranging from 50,000 to 100,000 kilometers, particularly if there are signs of poor shifting quality (Source: Peugeot Forums, Reddit).

3. General Maintenance Guidelines: The service intervals for other aspects of the vehicle, such as major periodic services, generally occur every two years or after 30,000 kilometers, which might also be pertinent when aligning other maintenance activities with the gearbox service (Source: DS 7 Crossback User Manual).

In summary, for the DS7 Crossback equipped with the EAT8 gearbox, it is advisable to consider changing the transmission fluid every 25,000 to 30,000 miles or approximately 40,000 to 48,000 kilometers, or every 60,000 kilometers based on user experiences. This proactive maintenance can help avoid potential issues and enhance the performance of the vehicle.

Sources

When should you change the transmission fluid of your DS 7?EAT8 Gearbox Oil - French Car ForumАutomatic Gearbox Oil Service Interval EAT8 - Peugeot ForumsUser manual DS 7 Crossback (2022) (English - 276 pages)Eat8 (Aisin awf8fxx) oil change : r/peugeot - Reddit[PDF] HANDBOOK - Service BoxVideo tutorials and vehicle user manuals - DS Automobiles

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