Front Passenger Lower Control Arm with Ball Joint for 2015-20 A3 S3

In this review the focus is the front passenger side lower control arm with ball joint designed for 2015-20 Audi A3 and compatible VW models. The bottom line: it is a direct-fit replacement kit that removes guesswork for DIY mechanics and independent shops, delivering a near-OEM feel and straightforward installation. For anyone repairing a front suspension on a compatible A3, S3, GTI, Golf R or Golf Alltrack, this kit promises precise fitment, a pre-assembled ball joint to save time, and parts that customers consistently praise for fit, quality and long-term functionality.

Key Features

• Complete kit: Includes one front passenger side lower control arm and one lower ball joint so the key components are replaced together for proper alignment.
• Direct replacement: Pre-assembled components are designed to match original fitment and reduce the need for modifications, saving installation time.
• Wide vehicle fitment: Compatible with 2015-20 Audi A3, 2015-20 S3 and several VW models such as GTI and Golf R, simplifying part selection for multiple cars.
• Trusted reference numbers: Matches common OEM reference numbers to aid verification and ensure correct part selection for repairs.
• DIY support: Backed by an extensive library of instructional videos from the brand to help owners "view before they do" and gain confidence during installation.

Who It's For

This part is best for DIY enthusiasts and independent mechanics who need a direct-fit front passenger lower control arm and ball joint for late-model Audi A3, S3, or compatible Volkswagen models. It suits owners repairing suspension after wear, impact, or who want to restore alignment and steering feel without sourcing separate components.

Those who should look elsewhere include owners of models outside the listed fitment years or technicians who require a vehicle-specific aftermarket upgrade with altered geometry; this is intended as a replacement matching original specifications rather than a performance-modified arm.

Pros & Cons

Pros

• Good fit and fitment accuracy that customers report matches OEM parts closely.
• Pre-assembled ball joint and control arm speeds up installation and reduces labor time.
• Perceived quality and long-term functionality noted by users, including reports of good performance after extended mileage.
• Strong DIY resources and compatibility references to help confirm correct fit.

Cons

• Limited to specified model years and passenger side application, so fit must be verified before purchase.
• Not marketed as an upgraded performance arm; those seeking enhanced suspension tuning should consider specialty options.

Specifications

Brand	TRQ
Included parts	Front passenger lower control arm and front passenger lower ball joint
Compatible models	2015-20 Audi A3, 2015-20 S3, 2015-18 VW GTI, 2017-18 Golf Alltrack, 2015-18 Golf R, 2016-18 A3 Sportback e-tron
Reference numbers	3C0407366A, 3C0407366B, 5Q0407366A and related OEM numbers
Fitment side	Front passenger side
Assembly	Pre-assembled components for easier installation

Our Verdict

The TRQ front passenger lower control arm with ball joint is a sensible, cost-effective replacement for owners of compatible Audi and VW models who want reliable fit and easy installation. It delivers near-OEM fit, useful DIY installation resources, and solid long-term function reported by buyers, making it a good value choice for standard suspension repairs rather than performance upgrades.

Frequently Asked Questions

Will this fit my vehicle?
Verify year and model compatibility against the listed fitment; it fits specified 2015-20 Audi A3 and compatible VW models on the front passenger side.

Does the kit require extra parts for installation?
The kit includes the lower control arm and lower ball joint pre-assembled, which minimizes additional parts, though standard hardware and alignment are required after installation.

Is this a performance upgrade?
No, this part is intended as a direct-fit replacement matching original specifications rather than a performance-tuned control arm.