Front Suspension Control Arm Kit OE 4M0 Series Full Set

2. Full OE Part List & Component Position

Front Lower Rear Control Arm

• 4M0 407 693 = Left Front Lower Rear Arm
• 4M0 407 694 = Right Front Lower Rear Arm

Front Lower Forward Control Arm

• 4M0 407 151 = Left Front Lower Forward Arm
• 4M0 407 152 = Right Front Lower Forward Arm

Front Upper Forward Control Arm

• 4M0 407 505 = Left Front Upper Forward Arm
• 4M0 407 506 = Right Front Upper Forward Arm

Front Upper Rear Control Arm

• 4M0 407 509 = Left Front Upper Rear Arm
• 4M0 407 510 = Right Front Upper Rear Arm

Straight Lower Control Arm With Ball Joint

• 4M0 407 689 B = Left & Right Front Straight Control Arm (Ball Joint Integrated)

Front Sway Bar Stabilizer End Links

• 4M0 411 317 = Front Stabilizer Link Pair
• 4M0 411 305A = Auxiliary Stabilizer Link

Cross Reference Alternative OE Suffix

3. Compatible Chassis & Engine Range

Core Platform

• Audi Q7 Chassis 4M / 4MB / 4MG
• Audi Q8 Chassis 4MN
• Audi A8 / A8L D5 Chassis 4N8
• Audi A7 Sportback C8 Chassis 4KA
• Audi e-tron / e-tron S / e-tron GT
• VW Touareg CR7 (2017+)
• Porsche Cayenne 9YA / 9YB / 9YC (2018–2025)

All Compatible Displacement

4. Complete Vehicle Fitment Table (Model | Chassis | Production Year Range)

Audi Q7 (4M)

Audi Q8 (4MN)

Audi A8 / A8L D5 (4N8)

Audi A7 Sportback C8 (4KA)

Audi e-tron / e-tron Sportback

Volkswagen Touareg CR7

Porsche Cayenne 9YA / 9YB

5. Product Core Features

1. Full front suspension aluminum control arm kit matching OE 4M0 series part numbers, 100% direct bolt-on replacement without modification
2. Forged aviation-grade aluminum arm body, lightweight & high load capacity, anti-deformation
3. Integrated high-hardness rubber hydraulic bushings, effective filter road vibration, reduce bump noise
4. Sealed grease-filled ball joint with dust boot, waterproof & dustproof, extend service life over 100,000 miles
5. Complete with factory-spec mounting dimensions, fully compatible with air suspension / adaptive chassis
6. Stabilizer links with reinforced ball joint ends, eliminate sway bar rattling, restore vehicle stability during high-speed cornering
7. All components match original ECU chassis control parameters, no alignment failure after installation

6. Common Failure Symptoms (Buyer Pain Points)

1. Loud clunking / knocking noise from front suspension when passing speed bumps, potholes
2. Steering loose, wandering, poor straight-line stability at highway speed
3. Uneven inner/outer tire premature wear
4. Severe body tilt during sharp turning
5. Hydraulic bushing oil leakage, soft suspension feeling
6. Worn ball joint causing abnormal wheel play when lifted
7. Sway bar link failure leading to rolling noise on rough roads
8. Wheel alignment cannot be calibrated to factory standard after repair

7. Professional Installation Instructions

1. Lift vehicle on full frame lift, release front suspension load before loosening arm bolts
2. Do not fully tighten control arm bushing bolts when suspension is lifted; torque bolts only after vehicle sits on ground static height
3. Replace all arms and links as a complete set, avoid mixing old & new suspension parts
4. Apply anti-seize grease on ball joint studs to prevent seizing in future disassembly
5. After installation, perform full 4-wheel laser alignment to correct camber & toe
6. Test drive at low speed first to check abnormal noise, then highway stability test
7. Professional suspension shop installation strongly recommended for air suspension equipped vehicles

8. Warranty & Purchase Notice

• 12 Months Manufacturer Warranty
• Full kit includes all listed OE arms + stabilizer links as above
• Must confirm vehicle chassis code (4M Q7 /4MN Q8 /4N A8 /4KA A7 /CR7 Touareg /9YA Cayenne) before ordering
• Fits both steel spring suspension and air adaptive suspension; NOT fit older C7 A6 / 4L Q7 pre-2016 chassis
• All parts are handed left/right specific, strictly match OE number for each side