Mercedes B 170 W245 Front Left N/S Suspension Leg Wheel Hub Carrier Brake Disc

Mercedes B 170 W245 Front Left N/S Suspension Leg Wheel Hub Carrier Brake Disc is a complete solution for demanding users who want to restore the correct geometry and handling stability of their vehicle. This item from the Suspension replacement kits category combines key components responsible for wheel guidance, load bearing, and interaction with the braking system. As a result, it provides a practical base for professional repair of the front axle on the driver's side.

Specifications and technical data

• SKU: A1693201730-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: A1693201730
• Substitutable numbers: A1693201730, A 1693201730, A 169 320 17 30, A1693300720, A 1693300720, A 169 330 07 20, A1694200583, A 169 420 05 83, A1694210812, A 169 421 08 12, BG
• Weight: 150
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the vehicle

The described set includes the front left suspension element integrated with the wheel hub and brake disc, designed for the Mercedes B 170 W245. Its task is to ensure stable wheel guidance, transfer forces from the road surface to the body, and ensure proper cooperation with the braking system on this side of the vehicle. Using a complete assembly makes it easier to maintain consistent suspension performance parameters and minimizes the risk of incorrect installation of individual components.

Set construction and benefits of complete replacement

The set contains key components responsible for wheel guidance and cooperation with the brake, which allows for a consistent replacement of the entire assembly on the front left side. Such a solution is particularly beneficial in cases of:

• repairs after a collision or mechanical damage within the front suspension,
• excessive wear of load-bearing and wheel-guiding elements,
• problems with geometry, driving stability, or uneven tire wear.

Choosing a complete set allows you to limit the number of contact points between old and new parts, which promotes more predictable vehicle behavior after repair. Additionally, it facilitates service work, as the installation is based on a single assembly rather than many scattered components.

Condition, origin, and fitment

The item comes from dismantling and is offered as a used suspension set, which is a reasonable compromise between repair costs and maintaining the original design. For many Mercedes B-Class W245 users, choosing such a solution is a way to maintain factory handling characteristics without the need to invest in new, significantly more expensive components. The use of the original mounting architecture and geometry facilitates installation in place of the factory assembly on the front left side.

Technical and operational aspects

The set has been designed to work in the front part of the vehicle on the left side, which is crucial for proper load distribution and cooperation with other front axle suspension elements. The properly selected mass of the assembly and the load-bearing structure influence:

• vehicle stability during braking and cornering,
• steering precision at higher speeds,
• reduction of vibrations transmitted to the body.

For workshops and users, it is also important that the set includes elements that work with the braking system, which allows for consistent monitoring of the condition of these components during a single service operation. This allows for efficient planning of further work on the braking system if necessary.

Application in service practice

When replacing the front left suspension assembly with the hub and brake disc in a Mercedes B 170 W245, it is worth paying attention to the condition of other front axle elements, such as control arms, stabilizer links, or other braking system components. A comprehensive approach to repair allows you to limit the number of service visits and ensure more predictable vehicle behavior after the work is completed. This type of set is particularly useful in situations where several elements have been damaged simultaneously, and the priority is to quickly restore the car's full efficiency.

If you are planning a comprehensive repair or upgrade of the front axle suspension zone in your BMW and need other items from the same group, such as suspension struts, hubs, or additional mounting elements, check the available parts in the BMW suspension replacement kits category.

For Mercedes owners who are considering using original parts from dismantling, practical tips on selecting and using such components may be useful – you will find them in the article Used parts for Mercedes – original parts from dismantling, where the advantages of using branded elements at a reasonable price are discussed.