The "transfer case" is designed as an active all-wheel drive system that is dynamically adapted to the...

Bulletin number

122-L7P4X-03

Component

Power train: transfer case (4-wheel drive)

Summary

The "transfer case" is designed as an active all-wheel drive system that is dynamically adapted to the respective driving state. Power transmission between the front and rear axle is controlled electronically via the "all-wheel drive servomotor (transfer case)" and themulti-plate clutches integrated in the transfer case. ? On all-wheel drive vehicles, the drive train can become strained at low speeds and when the steering is turned sharply when "Off-roadmode" is activated, depending on design. ? Under extreme conditions, the drive train can also become strained when "Off-roadmode" is deactivated. ? Customers with little experience with all-wheel drive vehicles can interpret this behavior as a fault, which in turn can result in incorrect diagnoses in the workshop. Remedial action: Customer complaint to be checked: ? Rough-running engine or ? thevehicle vibrates or ? theengine jerks under load/during acceleration.

Owners of these vehicles have filed 9 complaints in the transmission category.