Steer and support the front suspension with the Beck/Arnley control arm and ball joint assembly 102-8135, a front right lower unit that locates the wheel, pivots through suspension travel, and provides the ball joint's steering pivot point. It's an application-specific replacement for the 2015-2023 Mercedes-Benz C300, 2016-2018 C350E, 2019-2021 CLS450, 2017-2019 E300, 2020-2023 E350, 2018 E400, and 2019-2023 E450 — see the Buyer's Guide tab for the full list and engine details.
Signs the original front lower control arm or its ball joint may need replacing include clunking or knocking over bumps, loose or wandering steering, and uneven front tire wear. If a worn arm or ball joint is the cause, this assembly replaces it. Diagnose the underlying condition before ordering, and have an alignment performed after installation.
Interchange: RK623563 · 2053301405 · 2053301605 · 2053304403 · CMS101459
This part cross-references / interchanges with the following part numbers:
Where does this front lower control arm mount?
It is the front right lower unit. It locates the wheel, pivots through suspension travel, and the integrated ball joint provides the steering pivot point on the listed applications.
Does the lower control arm for the Mercedes C300 come with the ball joint?
Yes. The control arm comes with the ball joint already installed for a complete, one-piece installation, so you don't source the ball joint separately.
Will this fit my C300 control arm application?
It's an application-specific fit for the 2015-2023 C300 and other listed Mercedes-Benz models. Confirm your model and year against the Buyer's Guide tab before ordering.
What are the signs this part may need replacing?
Clunking or knocking over bumps, loose or wandering steering, and uneven front tire wear can indicate a worn control arm or ball joint. Diagnose the cause before replacing.
Is any hardware included?
It includes new hardware and bushings where applicable. Consult the vehicle service information for the correct fasteners and whether any originals may be reused, and align the vehicle afterward.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
