What are control arms and ball joints made of?

Control arms and ball joints are suspension elements mounted between the body, subframe, steering knuckle, and wheel. A typical control arm consists of a body, metal-rubber bushings, and a point for a pin or joint, while a ball joint includes a housing, a ball pin, and a cover. These parts are found on the front or rear axle, depending on the vehicle design.

What are control arms and ball joints used for?

Control arms and ball joints are used to guide the wheel in the correct path and to maintain suspension geometry while driving. They allow suspension movement over bumps and transfer loads generated during braking, cornering, and acceleration. Without their proper operation, the car may lose stability, and tires will wear unevenly.

What role does the control arm ball joint play?

The control arm ball joint is the element connecting the control arm to the steering knuckle, allowing for rotational movement and suspension deflection. It is responsible for the smooth transfer of forces between the wheel and the suspension arm and works with a cover protecting the joint from dirt. Its condition affects steering precision, the absence of play, and stable vehicle handling.

How to choose a control arm or ball joint for a specific car version?

The safest way is to compare the OEM number, interchangeable numbers, mounting side, and placement on the vehicle. It is also worth checking the body version, suspension type, and compatibility of mounting points. With similar-looking parts, differences may concern arm length, pin diameter, or bushing type.

What symptoms indicate wear of a control arm or ball joint?

The most common symptoms are knocking when driving over bumps, the car pulling, worse steering response, and uneven tire wear. In practice, there is also play noticeable during suspension inspection and reduced stability during braking. Such symptoms should be confirmed by inspecting the bushings, pins, and mounts.

What does proper installation of control arms and ball joints involve?

Proper installation involves matching the part to the correct location on the vehicle and following the correct assembly sequence. It is important to tighten according to the manufacturer's specifications and check the geometry after finishing the work. In many cases, it is also worth checking the condition of adjacent bushings, links, and the steering knuckle.

Control arms and ball joints

At Global Parts, we offer a wide selection of original used car parts, including control arms and ball joints for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The control arms and ball joints we offer are quality-controlled, ensuring you receive a top-quality product.

More information

Make

Wishbone BMW E90 E92 E93 M3 Rear Suspension Right O/S Control Arm 2283548

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Mercedes W205 W213 C238 Wishbone Control Arm Front Left N/S A2053302107

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Control Arm Mercedes R172 Rear Suspension Wishbone Left Right N/O/S A1723500153

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Audi Q7 4M Rear Control Arm Left Right N/O/S 4M0501531

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BMW G20 G21 Wishbone Lower Control Arm Rear Axle 6881199

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Land Rover Freelander 2 Wishbone Lower Control Arm Rear Left N/S 5A994BL2L7A

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Mercedes W164 X164 Front Control Arm Top Wishbone Rod Left N/S A2513300707

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Mercedes W205 C200d Front Axle Wheel Hub Suspension Right O/S A2053322200

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Audi A6 C8 Q5 Rear Lower Arm Wishbone Suspension Left Right N/O/S 80A505311B

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Mercedes Vito Viano W639 Control Arm Front Axle Right O/S Bottom Wishbone Joint

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BMW G20 G21 G22 G42 Front Axle Lower Wishbone Control Arm Right O/S 6888856

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Wishbone Control Arm Mercedes W212 Front Right O/S Upper Rod Strut A2123302811

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Mercedes W221 Rear Wishbone Thrust Brace Arm Carrier Left N/S A2213501706

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AUdi A4 B8 Avant Front Axle Lower Wishbone Control Arm Left N/S 8E0407693AA

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Control Arm Audi A4 B8 A5 8F Q5 8R Upper Handlebar Front Left N/S 8K0407505A

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Rear Wishbone Mercedes W221 Left N/S Upper Control Arm Axle Joint A2223500132

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Audi TT 8J Lower Control Arm Wishbone Front Right O/S 8J0407151D

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Trailing Arm Mercedes C118 W177 Rear Right Suspension Control Arm A1773504401

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Mercedes W251 Wheel Carrier Hub Front Left N/S Leg Brake Disc Caliper

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Mercedes W205 C 200 Wheel Carrier Hub Front Left N/S AMG Leg Brake Disc Caliper

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Mercedes Citan W415 Wishbone Suspension Front Left N/S Control Arm A4153300300

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Wishbone BMW X5 F15 X6 F16 Front Axle Left N/S Bottom Control Arm 6864821

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Audi Q7 4L Rear Axle Suspension Wishbone Control Arm Lower Right O/S 7L0505312B

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Mercedes W213 Wheel Carrier Hub Front Left N/S Axle Suspension Bearing

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Mini R50 R52 R53 Lower Wishbone Suspension Control Arm Front Left N/S 6761409

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Audi A3 8V Front Wishbone Lower Control Arm Suspension Right O/S 5Q0407152J

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Vauxhall Vivaro B Renault Trafic Wishbone Control Arm Front Right O/S 93853465

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Audi RSQ3 F3 Rear Lower Control Arm Axle Suspension Right Left N/O/S 3Q0505311G

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Mercedes-Benz C CLK E W202 C208 W208 W210 Front Right O/S Control Arm Wishbone

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Audi A4 B9 A5 F5 Front Suspension Lower Control Arm Right O/S 8W0407694B

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Porsche Boxster 986 Rear Subframe Mount Bracket Bearing Right O/S 98633115208

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Part no. 8W0407152C

Audi A5 F5 Front Wishbone Lower Control Arm Right O/S 8W0407152C

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Mercedes W205 W213 Front Control Arm Wishbone Right O/S Suspension A2053302207

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Part no. 4M0505311J

Audi Q7 4M Rear Lower Suspension Control Arm Left Right N/O/S 4M0505311J

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Audi A3 8V Front Control Arm Lower Wishbone Left N/S 81A407151C

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Mercedes W176 W246 Front Right O/S Suspension Wheel Carrier Hub Knuckle

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Mercedes W205 Control Arm Left N/S Track Spring Link Wishbone A2053306101

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Audi Q5 FY Rear Control Arm Wishbone Left Right N/O/S 80A505371A

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Mercedes W205 C 200 d Wheel Carrier Hub Front Left N/S AMG Leg Brake Disc

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Mercedes W205 C 200 d Wheel Carrier Hub Front Left N/S AMG Leg Brake Disc

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Audi A6 C8 Rear Control Arm Wishbone Left Right N/O/S Set 4M0505425F

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Suspension Wishbone Mini R56 R57 Front Right O/S Lower Control Arm 6772302

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Control Arm Audi A4 B8 A5 8F Q5 8R Lower Wishbone Front Left N/S 8K0407151D

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Mercedes-Benz ML GL W164 Front Right O/S Control Arm Bottom Wishbone Rod

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Wishbone Mercedes Vito W447 Rear Right Control Arm A4473505000

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Rear Wishbone Bmw G31 G32 GT Control Arm Left Right N/O/S 6861131

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Part no. 6763119-10

BMW E63 Wheel Carrier Rear Left N/S Suspension Axle Holder 6763119

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Part no. 7P0407151E

Audi Q7 4L VW Touareg 7P Front Wishbone Lower Control Arm Left N/S 7P0407151E

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Part no. 1T0505226F

VW Touran 1T Rear Wishbone Control Arm Axle Suspension Right O/S 1T0505226F

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Audi A4 B8 Front Wishbone Control Arm Right O/S Suspension Tie Rod 8K0407694N

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Part no. 8W0505324F

Audi A4 B9 Rear Top Suspension Control Arm Right O/S Wishbone 8W0505324F

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Part no. 6772301-2

BMW Mini R55 R56 2 Left Right N/O/S Lower Wishbone Suspension Control Arm Set

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