Transfer case chain (ATC400)
€165 (Net: €129,92)
3 in stock
Description
The chain in the transfer case is responsible for consistent and uniform power transmission. It provides the connection necessary for the optimal operation of the front and rear axles, thereby ensuring the functionality of the 4×4 drive.
Why is my BMW X3 making a clicking or snapping noise during acceleration?
A clicking or popping sound under load usually indicates that the transfer case chain has stretched. In the ATC400 unit, a loose chain can skip over the gear teeth, which causes that specific noise and interrupts smooth power delivery to the front wheels.
Will this chain fit my 2005 BMW X3?
Yes, the ATC400 transfer case is the standard unit used in the BMW X3 E83 series (produced roughly between 2003 and 2010). If your vehicle is an E83 model, this is the correct internal chain for your transfer case repair.
Can I replace just the chain, or do I need a whole new transfer case?
In many cases, replacing just the chain is a cost-effective way to restore 4×4 functionality. However, a mechanic should inspect the internal sprockets and the actuator motor gear for wear at the same time to ensure a complete and lasting repair.
What are the symptoms of a worn-out ATC400 transfer case chain?
Common symptoms include a “jerking” sensation during hard acceleration, 4×4 or DSC warning lights on the dashboard, and audible clicking noises from underneath the vehicle when the system tries to distribute torque.
How can I make my new ATC400 chain last longer?
To maximize the lifespan of your transfer case chain, ensure you are using a staggered tire setup that meets BMW’s exact rolling circumference specifications and change your transfer case fluid every 40,000 to 60,000 miles.
Additional information
| Weight | 1,49 kg |
|---|---|
| Dimensions | 400 × 115 × 80 mm |
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