Metrix Premium Front Left Lower Rearward Control Arm w Ball Joint

In this review of the Metrix Premium Front Left Lower Rearward Control Arm w Ball Joint, the bottom line is simple: this is a dependable replacement for owners of compatible BMW models who want a long-lasting, OE-level repair without paying dealer prices. The reviewer found the part to be well made, pre-greased for smooth operation, and sized to fit original mounting points, making installation straightforward for experienced DIYers or a quick shop job. It is best chosen when the goal is restoring suspension geometry and ride quality with a part that exceeds OEM standards.

Key Features

• Wide Compatibility: Covers many BMW models across 2006-2015, so shoppers can match the part to their specific chassis without guessing.
• Pre-greased Assembly: Arrives pre-lubricated to reduce initial wear and ensure smoother movement from first use.
• Aluminium Construction: Lightweight corrosion-resistant material that helps maintain factory-like handling and durability.
• OE Interchange Numbers: Includes common OE and interchange references such as RK620129 and 31126763699 for confident parts matching.
• Quality Management Certified: Built under IATF 16949 and ISO 9001 processes to exceed typical OEM standards for reliability.
• Warranty Backed: Comes with a 3 year / 36,000 mile limited warranty from installation date for added peace of mind.

Who It's For

This control arm is aimed at owners of compatible BMWs - including many 3 Series and select 1 Series and X1 RWD models from the late 2000s to mid 2010s - who need an exact-fit front left lower rearward control arm with ball joint and bushing. It suits independent mechanics and experienced DIYers who can handle suspension work or who plan to have the part installed at a shop.

Those who should look elsewhere include drivers who need a different side or position, or owners of non-compatible model years and platforms. Also, buyers expecting a lifetime part should note the supplied 3 year / 36,000 mile limited warranty when comparing long-term coverage options.

Pros & Cons

Pros

• Good fit for listed BMW models with positive customer notes about ease of installation and correct alignment.
• Pre-greased and aluminium construction contribute to smooth operation and resistance to corrosion.
• Manufactured to exceed OEM standards with IATF 16949 and ISO 9001 certifications and a standard limited warranty.

Cons

• Only one quantity included in the box, so buyers replacing both sides must order two units separately.
• Not a direct choice for models outside the listed compatibility; verify interchange numbers before purchase.

Specifications

Position	Front Left Lower Rearward
Includes	Ball joint and bushing assembly
Material	Aluminium
Quantity in Box	1
OE / Interchange	RK620129, CMS10108, CB14153, 31126763699
Certifications	IATF 16949, ISO 9001
Warranty	3 Year / 36,000 miles Limited Warranty

Our Verdict

The Metrix Premium control arm is a solid, well-engineered replacement for the listed BMWs, offering pre-greased operation, aluminium durability, and manufacturing certifications that exceed OEM expectations. It represents good value for people seeking a reliable suspension repair with a three year warranty, provided buyers confirm fitment and order the correct quantity for both sides if needed.

Frequently Asked Questions

Will this part fit my 2007 3 Series?
Check the detailed compatibility list; it explicitly fits many 2006-2011 3 Series variants such as 323i and 328i, but confirm your exact model and production year against the listed ranges.

Does the arm include the ball joint already installed?
Yes, this listing is for the control arm with ball joint and bushing assembly included and delivered pre-greased.

How long is the warranty?
The part includes a 3 year / 36,000 mile limited warranty from the date of installation.