TRQ Front Lower Control Arm Set for 2009-14 Mercedes CL550 S-Class

In this review the tester looks at the TRQ Front Lower Control Arm with Ball Joint set and whether it is a sensible replacement for S-Class and CL550 owners. The bottom line: this two-piece kit is aimed at DIY mechanics and independent shops who need a straightforward, direct-replacement pair of lower forward control arms; its strongest advantage is the pre-assembled ball joint and OE-referenced fit that makes installation quicker and reduces headaches during a suspension service. The review focuses on fitment, build quality, and ease of installation.

Key Features

• Complete 2-piece kit: Includes both driver and passenger front lower forward control arms with ball joints so both sides can be serviced at once for consistent handling.
• Pre-assembled ball joints: Ball joints come installed to save time and eliminate the need to press in components during replacement.
• OE reference compatibility: Multiple reference numbers are listed to match factory parts and assist with confirming correct fitment for model years 2007-2014.
• Direct replacement design: Built to match original geometry so no modification is required and alignment adjustments remain standard after installation.
• DIY support: The brand supplies online how-to resources aimed at letting a competent home mechanic "view before you do" and reduce installation uncertainty.

Who It's For

This TRQ control arm set is best for owners of 2009-2014 Mercedes-Benz CL550 and 2007-2013 S550 or 2012-2013 S350 who need a reliable lower forward control arm replacement and prefer to do the work themselves or have a trusted independent shop install parts. It will appeal to those who value direct-fit parts with OE cross-reference numbers and pre-assembled ball joints to speed up the job.

It is less appropriate for someone who needs a performance-tuned suspension part or who requires custom geometry changes; if you need aftermarket performance upgrades or adjustable components, look elsewhere than this direct-replacement kit.

Pros & Cons

Pros

• Direct-fit pair replaces both front lower forward arms for consistent handling and easier service intervals.
• Pre-assembled ball joints reduce labor and the need for specialized press tools during installation.
• Customers report fit and finish comparable to OEM and good long-term function, indicating solid build quality.

Cons

• Not intended as an upgraded performance component; those seeking aftermarket tuning will need different parts.

Specifications

Kit contents	2 Piece - driver and passenger lower forward control arms with ball joints
Compatible models	Mercedes-Benz CL550 2009-2014; S550 2007-2013 4Matic; S350 2012-2013; S450 2008-2011
Reference numbers	Includes 2213303711, 2213303811, 2213306511, 2213306611 and others
Brand	TRQ
Quantity	2 pieces
Fitment type	Direct replacement, pre-assembled

Our Verdict

The TRQ Front Lower Control Arm set is a practical, good-value replacement for S-Class and CL550 owners who need direct-fit, pre-assembled lower forward control arms. It delivers reliable fit, reduces installation time, and matches factory references, making it a smart choice for DIYers and independent shops who want OEM-like replacement without paying dealer prices.

Frequently Asked Questions

Will this kit fit my S550?
It covers 2007-2013 S550 front driver and passenger lower forward control arms; confirm fitment against vehicle year and the included reference numbers.

Are the ball joints installed?
Yes, the control arms come with ball joints pre-assembled to simplify installation and reduce required tools.

Can this be used for performance suspension upgrades?
No, this is a direct replacement designed to match OEM geometry rather than provide adjustable or performance-tuned improvements.