Control arms are integral parts of the front suspension on your Audi. They're also called "A arms." Some cars and SUVs have two upper and two lower control arms -- a total of four. They connect the frame or body of your Audi to its wheel assembly by a steering knuckle, using rubber pieces that flex, called control arm bushings. These allow the control arms to swing vertically as your front wheels and tires cross bumps and potholes or go over other road hazards. A control arm's outer end connects via a ball joint, a part either permanently attached, or bolted or pressed in for replacement separately.

What Control Arms Do

In short, they keep your front wheels on the road reliably. Sooner or later, though, even a top-quality Audi control arm can wear out, bend, or get damaged. In that condition, your vehicle isn't safe to drive.

Signs of Failing Control Arms

Thankfully, there are signs to look for when a lower control arm is going bad. They include loss of control, a pop or clunk when speeding up, slowing down, or driving over obstacles, and drifting when braking or driving across uneven terrain. These can indicate degraded ball joints or ripped control arm bushings, and both can cause your front wheels to separate from your suspension completely. If you've got these symptoms, lift your Audi on a hoist and inspect it to find the problem. It's a good idea to do this at least once a year.

Drive Smart | Insist on Installing Genuine Audi Control Arms

When it's time to replace a lower control arm or its parts, go genuine. OEM control arms and parts are, after all, the best guarantee of compatibility with your Audi. You can buy them online, right from our auto parts store. Get the peace of mind of a job done right -- order now.

8K0407254AA - Suspension: Steering Knuckle for Audi Image

Steering Knuckle

A5, S5. Allroad. Right. From 11/2009 KSM. A4, S4. Q5. Ksm, code gp1. 2013-2016, ksm.
$1,385.00 CAD
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N10699901 - Suspension: Suspension Stabilizer Bar Link Bolt for Audi Image

Suspension Stabilizer Bar Link Bolt

To strut mount. With electronic roll stabilisation. 2013-2016. To Control Arm. To Stabilizer Bar. Convertible,. Coupe, from vin...
Positions: LEFT, RIGHT, Upper
$4.00 CAD
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Fits Your Vehicle
WHT005372 - Engine: Suspension Cross-Member Bolt for Audi Image

Suspension Cross-Member Bolt

A7. Lower brace,mount bolt. Gas. S7. 4.0L, m12x1,5x51. Without hybrid, 2013-17. 2.0L 2013-2016 auto trans. 3.0L, auto trans, 2013-2016....
$11.30 CAD
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Fits Your Vehicle
8K0505431AR - Suspension: Knuckle for Audi Image

Knuckle

A5, S5. Left. A6. With Quattro. With AWD. from 01/2009. A4. Allroad. 2013-2016. S4. From 1/2009.
Positions: LEFT, Rear Left
$1,502.00 CAD
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Fits Your Vehicle
N10731501 - Suspension: Rear Lower Control Arm Mount Bolt for Audi Image

Rear Lower Control Arm Mount Bolt

From 11/2009. A7. S7. 2013-2016. To 10/2009. Convertible,. Coupe,. Rr lwr cntl arm,mount bolt.
Positions: LEFT, Rear Lower, RIGHT
$19.85 CAD
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Fits Your Vehicle
8K0407253AA - Suspension: Steering Knuckle for Audi Image

Steering Knuckle

A5, S5. Allroad. Left. Stamped #KSM. From 11/2009 KSM. A4, S4. Q5. Ksm, code gp1. 2013-2016, ksm.
Positions: Front Left
$1,303.00 CAD
View Details
Fits Your Vehicle
8R0412391A - Suspension: Bracket for Audi Image

Bracket

A5, S5. Left. Q5. A4, S4. 2013-2016. Allroad. SQ5. Convertible,. Rs 5.
Positions: Left
$663.00 CAD
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Fits Your Vehicle
N10699601 - Suspension: Suspension Stabilizer Bar Link Bolt for Audi Image

Suspension Stabilizer Bar Link Bolt

To Stabilizer Bar. 2013-2016. Coupe.
Positions: LEFT, Lower, RIGHT
$7.70 CAD
View Details
Fits Your Vehicle

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