Metrix Front Left Lower Rearward Control Arm with Ball Joint - Durable

In this review the Metrix Premium chassis front left lower rearward control arm is examined for BMW owners who need a direct replacement that aims to match or exceed factory durability. The bottom line: this control arm is best for drivers seeking a ready-to-fit aluminium suspension arm that arrives pre-greased and backed by a 3 year / 36,000 mile limited warranty. It stands out because it is manufactured to IATF 16949 and ISO 9001 standards and lists multiple OE interchange numbers, making it a practical choice for correct-fit repairs on compatible BMW models.

Key Features

• Compatibility: Covers a wide range of BMW models including 2011-2019 5 and 6 Series variants, which reduces the risk of ordering the wrong part.
• Pre-greased: Supplied pre-greased to promote smoother movement and reduce initial break-in wear after installation.
• Material: Constructed from aluminium to balance strength with reduced unsprung weight for reliable suspension performance.
• Exceeds OEM standards: Designed and manufactured under IATF 16949 and ISO 9001 processes, indicating consistent quality control above basic aftermarket levels.
• Warranty backed: Includes a 3 year / 36,000 mile limited warranty from installation date, offering peace of mind for replacement work.
• OE interchange: Lists RK641511 and several OEM numbers to make cross-referencing with repair manuals and parts catalogs straightforward.

Who It's For

This part is aimed at independent mechanics and DIY enthusiasts who own compatible BMW 520i (Mexico), 535d, 530i (Mexico), 528i, 535i, 550i, ActiveHybrid 5, and 640i/650i Gran Coupe models from the specified years and need a direct replacement control arm with new bushing and ball joint. It suits owners who prefer a replacement manufactured under certified quality systems and who value the included warranty.

Those who should look elsewhere include drivers who require an OEM-branded control arm for dealer maintenance records or vehicles outside the listed fitment years; also consider specialized performance arms for motorsport use, since this is specified as a premium replacement rather than a race part.

Pros & Cons

Pros

• Good fitment coverage and clear OE interchange numbers make it easy to verify fit before purchase.
• Pre-greased and aluminium construction help provide smooth initial operation and durable performance.
• Manufactured to IATF 16949 and ISO 9001 standards, which implies consistent quality and manufacturing controls.
• The 3 year / 36,000 mile limited warranty offers additional confidence after installation.

Cons

• Not an OEM-branded part, so drivers who require original dealer parts for records might prefer a factory control arm instead.
• Limited to the specific model years and variants listed, so fitment must be confirmed prior to purchase.

Specifications

Brand	Metrix Premium Chassis Parts
Position	Front Left Lower Rearward
Includes	Control arm with ball joint and bushing (quantity 1)
Material	Aluminium
OE / Interchange	RK641511, CMS101274, 522-883, 31126794203
Certifications	IATF 16949, ISO 9001
Warranty	3 Year / 36,000 miles Limited Warranty

Our Verdict

The Metrix front left lower rearward control arm is a solid replacement option for owners of the specified BMW models who want a quality aftermarket part with clear interchange references and a warranty. Its pre-greased aluminium construction and certified manufacturing make it good value for routine suspension repairs, provided buyers confirm compatibility with their exact model year and variant.

Frequently Asked Questions

Will this control arm fit my 2014 535d?
Yes, the listed compatibility includes 2014-2016 BMW 535d models, but verify your vehicle's position and side before ordering.

Does the control arm come ready to install?
Yes, it is supplied pre-greased and includes the ball joint and bushing, so it is ready for installation as a single unit.

Is there a warranty?
Yes, Metrix provides a 3 year / 36,000 mile limited warranty from the date of installation.