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Control arms, also known as "A arms," are important parts of the front suspension on your Audi car or SUV. They connect the frame or body to the wheel assembly. Some models have two control arms, while others have four—two upper and two lower.

One end of a control arm connects to the chassis, where bushings limit vibration and noise while reducing any metal-on-metal contact. The other end connects to the steering knuckle by way of a ball joint. That allows your wheels to enjoy smooth movement in every direction.

Types of Control Arm Assemblies

Control arms are connected through bolt in, unitized, or press in assemblies. MacPherson struts typically features bolt-in assemblies. Unitized and press in assemblies both integrate with a ball joint, so you'll need to replace the whole assembly when you're replacing one. That's usually an easier job than it is to replace a bolt-in assembly.

How to Recognize Failing Control Arms

Even the best control arms can wind up going bad, whether due to age or rough road conditions. Signs of problems include:

  • Loss of control
  • Your Audi drifts when you brake or go over uneven terrain
  • Uncomfortable ride quality
  • Popping or clunking sounds
  • Uneven tire tread wear

Genuine Audi Control Arms Perform Best

Inspect your control arms yearly to confirm that they're in good working order. If you do need to replace one or more, insist on getting the right ones for your vehicle. Audi makes the only control arms that are guaranteed to be compatible with your model. Find everything you need right here in our online auto parts catalog, in stock and ready to ship. Buy now to save both time and money!

Control Arm
Part Number: 5WA-407-152
Options: Right, Right Lower
Other Names: Lower Control Arm More Names
Replaces: 5Q0-407-152-J, 5Q0-407-152-R
Description: A3, S3. Right. Convertible,. From 11/07/2017, without s-line. Sedan, to 11/07/2017. More Info
MSRP $336.67
$240.38
MSRP $336.67
$240.38
Control Arm
Part Number: 8J0-407-151-D
Options: Left Lower, Right Lower
Other Names: Lower Control Arm More Names
Description: 2.0L. TT. 2.5L. 3.2L. More Info
MSRP $475.00
$339.15
MSRP $475.00
$339.15
Control Arm
Part Number: 81A-407-152-F
Options: Right, Right Lower
Other Names: Lower Control Arm More Names
Replaces: 81A-407-152-C
Description: From 11/07/2017, with s-line. RS3. Right. More Info
MSRP $138.52
$98.90
MSRP $138.52
$98.90
Control Arm
Part Number: 5WA-407-151
Options: Left, Left Lower
Other Names: Lower Control Arm More Names
Replaces: 5Q0-407-151-J, 5Q0-407-151-R
Description: A3, S3. Left. Convertible,. From 11/07/2017, without s-line. Sedan, to 11/07/2017. More Info
MSRP $336.67
$240.38
MSRP $336.67
$240.38
Control Arm
Part Number: 8S0-407-151-D
Options: Left Lower, Right Lower
Other Names: Lower Control Arm More Names
Description: TT. More Info
MSRP $478.33
$341.53
MSRP $478.33
$341.53
Lower Control Arm
Part Number: 8S0-407-151-B
Other Names: Control Arm More Names
Description: TT. More Info
MSRP $393.33
$280.84
MSRP $393.33
$280.84
Lower Control Arm
Part Number: 8W0-407-151-D
Options: Left, Left Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Replaces: 8W0-407-151-B
Description: S4. Left. Coupe, S5. Convertible, S5. RS5. Rs 5. More Info
Notes: Part has related components that cannot be reused/reinstalled. bolt, bushing. More Notes
MSRP $368.33
$262.99
MSRP $368.33
$262.99
Upper Control Arm
Part Number: 8W0-505-324-F
Options: Right Front, Right, Rear Right Upper Forward Front, Rear Right Upper Forward Right, Rear Right Upper Front, Rear Right Upper Right
Other Names: Suspension Control Arm, Control Arm More Names
Notes: Includes Bushings. Part has related components that cannot be reused/ reinstalled. bolt, nut. More Notes
MSRP $360.00
$257.04
MSRP $360.00
$257.04
Lower Control Arm
Part Number: 1K0-407-151-AD
Options: Left
Other Names: Control Arm More Names
Replaces: 1K0-407-151-R
Description: With sport suspension, cast type. A3. Without auto head light adj.. Left. With sport suspension, with awd, 3.2L. More Info
MSRP $271.67
$193.97
MSRP $271.67
$193.97
Lower Control Arm
Part Number: 1K0-407-151-BC
Options: Left
Other Names: Control Arm More Names
Replaces: 1K0-407-151-AA, 1K0-407-151-AE, 1K0-407-151-AH, 1K0-407-151-P
Description: A3. All. 2.0l. Left. Without sport suspension, all. Without sport suspension, without awd. Without sport suspension, sheet metal type.... More Info
MSRP $280.00
$199.92
MSRP $280.00
$199.92
Lower Control Arm
Part Number: 1K0-407-152-BC
Options: Right
Other Names: Control Arm More Names
Replaces: 1K0-407-152-AA, 1K0-407-152-AH
Description: A3. All. 2.0l. Right. Without sport suspension, all. With auto head light adj.. With sport suspension, sheet metal type. Without sport... More Info
MSRP $280.00
$199.92
MSRP $280.00
$199.92
Lower Control Arm
Part Number: 1K0-505-311-AB
Options: Left, Right
Other Names: Control Arm More Names
Replaces: 1K0-505-311-AA, 1K0-505-311-S
Description: TT. A3. Q3. Fwd. Awd. More Info
MSRP $306.67
$218.96
MSRP $306.67
$218.96
Upper Control Arm
Part Number: 4N0-505-397-A
Options: Left, Left Rear, Right Rear
Other Names: Rear Arm, Control Arm More Names
Description: Steel. A6 Quattro. A8 Quattro. Left. A7 Quattro. A6 allroad. S6. S8. More Info
Notes: Part has related components that cannot be reused/reinstalled cannot be reused/reinstalled. bolt and nut. More Notes
MSRP $288.33
$205.87
MSRP $288.33
$205.87
Suspension Control Arm
Part Number: 4S0-407-151-E
Options: Front Left Lower
Other Names: Control Arm More Names
Replaces: 4S0-407-151-B
Description: Incl.Ball Joint & Bushings. More Info
MSRP $826.67
$590.24
MSRP $826.67
$590.24
Suspension Control Arm
Part Number: 4S0-505-324-A
Options: Rear Right Upper
Other Names: Arm More Names
Description: Incl.Ball Joint & Bushings. More Info
MSRP $676.67
$483.14
MSRP $676.67
$483.14
Upper Control Arm
Part Number: 5Q0-505-323-D
Options: Left, Right
Other Names: Torque Arm, Control Arm More Names
Description: A3, S3. Convertible, without awd. TT. Q3. RS3. More Info
Notes: Includes Bushings. Part has related components that cannot be reused/ reinstalled. screw, lock nut, mount bolt. More Notes
MSRP $288.33
$205.87
MSRP $288.33
$205.87
Suspension Control Arm
Part Number: 7L0-407-151-K
Options: Front Left Lower
Other Names: Control Arm More Names
Description: Incl.Ball Joint & Bushings. Steel. More Info
MSRP $566.67
$404.60
MSRP $566.67
$404.60
Lower Control Arm
Part Number: 7L8-407-151-B
Options: Left
Other Names: Control Arm More Names
Description: Q7. Left. More Info
MSRP $560.00
$399.84
MSRP $560.00
$399.84
Left Front Lower Control Arm
Part Number: 80A-407-151-A
Options: Left, Left Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Description: Left. Q5 PHEV. SQ5. More Info
MSRP $378.33
$270.13
MSRP $378.33
$270.13
Lower Control Arm
Part Number: 80A-407-152-B
Options: Right, Right Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Description: SQ5. Right. More Info
MSRP $368.33
$262.99
MSRP $368.33
$262.99
Lower Control Arm
Part Number: 80A-505-311-B
Options: Left, Right
Other Names: Control Arm More Names
Replaces: 80A-505-311-A
Description: A6 Quattro. SQ5. A7 Quattro. Q5 PHEV. A6 allroad. S6. More Info
MSRP $413.33
$295.12
MSRP $413.33
$295.12
Upper Control Arm
Part Number: 80A-505-398-A
Options: Right Rear, Right, Right Upper
Other Names: Rear Upper Control Arm, Control Arm More Names
Description: Steel. Rear. Right. Q5 PHEV. More Info
MSRP $265.00
$189.21
MSRP $265.00
$189.21
Control Arm Bushing
Part Number: 8A0-407-181
Options: Left, Right, Front
Other Names: Bushing, Bushings, Mount, Suspension Control Arm Bushing, Rubb Mount More Names
Description: 2wd. 4wd, to 8al045000. All models. 4000, Coupe. 4000s Quattro. More Info
MSRP $56.20
$33.44
MSRP $56.20
$33.44
Lower Control Arm
Part Number: 8E0-407-151-R
Options: Right Lower, Left Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Replaces: 8E0-407-151-M, 8E0-407-151-L, 8E0-407-151-N
Description: S4, RS4. Cabriolet A4. 1.8 & 3.0L. 4.2L. Cabriolet S4. More Info
MSRP $226.67
$161.84
MSRP $226.67
$161.84
Lower Control Arm
Part Number: 8K0-407-152-D
Options: Right, Right Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Replaces: 8K0-407-152-C
Notes: Includes Bushings. More Notes
MSRP $365.00
$260.61
MSRP $365.00
$260.61
Lower Control Arm
Part Number: 3Q0-407-151-S
Options: Left
Other Names: Control Arm More Names
Replaces: 3Q0-407-151-E, 3Q0-407-151-J
Description: Q3. Left. More Info
Notes: Includes Bushings. Part has related components that cannot be reused/ reinstalled. mount bolt, nut. More Notes
MSRP $448.33
$320.11
MSRP $448.33
$320.11
Lower Control Arm
Part Number: 420-407-151-K
Options: Left
Other Names: Control Arm More Names
Description: R8. Left. From 9/09. More Info
MSRP $790.00
$564.06
MSRP $790.00
$564.06
Upper Control Arm
Part Number: 420-407-506-E
Options: Right
Other Names: Control Arm More Names
Description: R8. Right. From 6/29/10. More Info
MSRP $655.00
$467.67
MSRP $655.00
$467.67
Lower Control Arm
Part Number: 420-505-311-D
Options: Left
Other Names: Track Rod, Arm More Names
Description: R8. Left. From 5/18/10. More Info
Notes: When replacing lower control arm, additional parts may be required. please contact local dealer for more information. More Notes
MSRP $678.33
$484.33
MSRP $678.33
$484.33
Lower Control Arm
Part Number: 420-505-312-D
Options: Right
Other Names: Track Rod, Arm More Names
Description: R8. Right. From 5/18/10. More Info
Notes: When replacing lower control arm, additional parts may be required. please contact local dealer for more information. More Notes
MSRP $678.33
$484.33
MSRP $678.33
$484.33
Suspension Control Arm
Part Number: 4D0-407-509-D
Options: Front Left Upper Rearward
Other Names: Upper Link More Names
Description: To Chassis/VIN 4D-V-004 001. More Info
MSRP $155.77
$111.22
MSRP $155.77
$111.22
Lower Control Arm
Part Number: 4F0-505-312-L
Options: Right
Other Names: Trailing Arm, Arm More Names
Description: A6, S6. Right. With air ride suspension. More Info
MSRP $415.00
$296.31
MSRP $415.00
$296.31
Upper Control Arm
Part Number: 4K0-505-397-A
Options: Left, Left Rear, Right Rear
Other Names: Rear Arm, Control Arm More Names
Description: Aluminum. A6 Quattro. Left. A7 Quattro. A6 allroad. S6. More Info
MSRP $338.33
$241.57
MSRP $338.33
$241.57
Upper Control Arm
Part Number: 4M0-505-397-P
Options: Left Rear, Left, Left Upper
Other Names: Rear Upper Control Arm, Control Arm More Names
Description: Knuckles & arms, aluminium. Q7. Rear. Axle code 0n5. Left. Q8. More Info
Notes: Includes Bushings. Part has related components that cannot be reused/ reinstalled. adjust bolt. More Notes
MSRP $325.00
$232.05
MSRP $325.00
$232.05
Lower Control Arm
Part Number: 8R0-505-311-F
Options: Left
Other Names: Trailing Arm, Suspension Control Arm, Arm More Names
Replaces: 8R0-505-311-B, 8R0-505-311-E
MSRP $468.33
$334.39
MSRP $468.33
$334.39
Lower Control Arm
Part Number: 8R0-505-312-F
Options: Right, Rear Right Lower Rearward Right
Other Names: Trailing Arm, Suspension Control Arm, Arm More Names
Replaces: 8R0-505-312-E, 8R0-505-312-B
MSRP $521.67
$372.47
MSRP $521.67
$372.47
Lower Control Arm
Part Number: 8W0-407-152-D
Options: Right, Right Lower
Other Names: Ft Lower Control Arm, Control Arm More Names
Replaces: 8W0-407-152-B
Description: S4. Right. Convertible, S5. RS5. Rs 5. More Info
Notes: Part has related components that cannot be reused/reinstalled. bolt, bushing. More Notes
MSRP $378.33
$270.13
MSRP $378.33
$270.13
Suspension Control Arm
Part Number: 8W0-505-397-F
Options: Left Rear, Left, Left Upper, Rear Left Upper Rearward Rear, Rear Left Upper Rearward Upper, Rear Left Rear, Rear Left Upper
Other Names: Rear Lateral Arm, Upper Control Arm, Rear Control Arm, Lateral Link, Lateral Arm, Control Arm More Names
Replaces: 8W0-505-397-C, 8W0-505-397-E
Notes: Includes Bushings. Part has related components that cannot be reused/ reinstalled. bolt, nut. More Notes
MSRP $211.67
$151.13
MSRP $211.67
$151.13
Upper Control Arm
Part Number: 1J0-505-323-L
Options: Left Upper, Left Lower, Right Upper, Right Lower
Other Names: Track Bar, Lower Control Arm, Control Arm More Names
Replaces: 1J0-505-323-E, 1J0-505-323-H
Description: TT. Upper. Awd, to vin# 8ny060000. More Info
MSRP $326.67
$233.24
MSRP $326.67
$233.24
Lower Control Arm
Part Number: 1K0-407-151-BD
Options: Left
Other Names: Suspension Control Arm, Control Arm More Names
Replaces: 1K0-407-151-Q, 1K0-407-151-AB
Description: A3. All. 2.0l. Left. Sport Suspension. Incl.Bushings. More Info
MSRP $298.33
$213.01
MSRP $298.33
$213.01
Suspension Control Arm
Part Number: 4S0-505-312-B
Options: Rear Right Lower
Other Names: Arm More Names
Description: Incl.Bushings. More Info
MSRP $670.00
$478.38
MSRP $670.00
$478.38
Suspension Control Arm
Part Number: 7L0-407-152-K
Options: Front Right Lower
Other Names: Control Arm More Names
Description: Incl.Ball Joint & Bushings. Steel. More Info
MSRP $566.67
$404.60
MSRP $566.67
$404.60
Lower Control Arm
Part Number: 7L0-505-311-B
Options: Left
Other Names: Control Arm More Names
Description: Q7. Left. More Info
MSRP $460.00
$328.44
MSRP $460.00
$328.44
Lower Control Arm
Part Number: 7L0-505-312-B
Options: Right
Other Names: Control Arm More Names
Description: Q7. Right. More Info
MSRP $460.00
$328.44
MSRP $460.00
$328.44
Upper Control Arm
Part Number: 7L8-407-021
Options: Left, Right
Other Names: Control Arm More Names
Description: Q7. More Info
MSRP $530.00
$378.42
MSRP $530.00
$378.42
Lower Control Arm
Part Number: 7L8-407-152-K
Options: Right
Other Names: Control Arm More Names
Replaces: 7L8-407-152-D, 7L8-407-152-F, 7L8-407-152-E
Description: Q7. Right. To vin 4l8053604. From vin 4l8053605. More Info
MSRP $820.00
$585.48
MSRP $820.00
$585.48
Lower Control Arm
Part Number: 8E0-505-311-AD
Options: Left
Other Names: Arm More Names
Replaces: 8E0-505-311-AC, 8E0-505-311-AB
Description: Without Quattro, from vin 8h4024001. S4, RS4. Left. From vin 8e4138038. Cabriolet A4. More Info
MSRP $440.00
$314.16
MSRP $440.00
$314.16

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