AUDI 4M0407155C Front Left Lower Control Arm Forward 4M0407151D

( Manufacturer Part Number: 4M0407155C ), ( Part Type: Control Arm ), ( Manufacturer Warranty: 30 Day ), ( Compatible Part Numbers: 4m0407151d, 4m0407151e, 4m0407151f ), ( Tested: Tested, Cleaned And Inspected ), ( Placement On Vehicle: Front, Left ), ( Fitment Type: Direct Replacement )

Review AUDI 4m Front Left Lower Control Arm Forward fits Q7 2016–2018

The **Audi 4M0407155C** is a high-performance, precision-engineered front lower control arm specifically designed for Audi Q7 models produced between the 2016 and 2018 model years, featuring the **4M (4-cylinder turbocharged) engine variant**. This critical suspension component plays a pivotal role in maintaining optimal handling, stability, and ride comfort by connecting the wheel assembly to the vehicle s chassis while accommodating the dynamic forces of acceleration, braking, and cornering. Crafted from durable **high-strength steel**, the control arm is built to withstand the rigorous demands of daily driving, off-road excursions, and the unique weight distribution of the Q7 s larger, luxury SUV platform. Its robust construction ensures resistance to warping, bending, or fatigue over time, even under the stress of uneven road surfaces or aggressive driving maneuvers.

The **4M0407155C** incorporates a **forward-mounted design**, which helps manage toe and camber adjustments, contributing to precise steering response and reduced tire wear. The arm features **integrated bushings** at both the chassis and ball-joint attachments, providing a balance of flexibility and rigidity to absorb road imperfections while maintaining alignment integrity. These bushings are engineered to minimize noise, vibration, and harshness (NVH), ensuring a refined driving experience that aligns with Audi s commitment to premium performance. The arm s **precision-machined mounting holes** guarantee a secure and accurate fitment, allowing for easy installation without compromising the vehicle s factory alignment specifications.

For enthusiasts and mechanics alike, this part is a **direct replacement** for the original equipment manufacturer (OEM) component, ensuring compatibility with the Q7 s suspension system without the need for modifications. Whether replacing a worn or damaged arm due to excessive wear, a collision, or routine maintenance, the **4M0407155C** delivers the reliability and performance expected from Audi s engineering standards. Its inclusion in a suspension upgrade or routine service ensures that the Q7 retains its signature blend of luxury, agility, and durability, making it an essential component for maintaining the vehicle s optimal driving dynamics.

### **Pros and Cons of Buying a Used Audi Q7 (4M0 407155C, 2016 2018) Front Left Lower Control Arm (Forward)**

1. **Common and Widely Available Part** The 4M0 407155C is a standard lower control arm for the 2016 2018 Q7, meaning it is easy to find in aftermarket stores, online marketplaces, or directly from Audi dealerships. This reduces the risk of ordering a rare or incompatible part.

2. **Affordable Replacement Cost** Compared to some high-end luxury vehicle parts, this control arm is relatively inexpensive, typically ranging between **$150 $300** (depending on brand and source). Labor costs may vary, but it is a manageable repair expense.

3. **Prevents Further Suspension Damage** A failing lower control arm can lead to uneven tire wear, poor handling, or even damage to other suspension components (e.g., ball joints, bushings). Replacing it early avoids more costly repairs down the line.

4. **DIY-Friendly Installation** While some Audi suspension work can be complex, this particular control arm is designed for straightforward replacement. Many owners with basic mechanical skills can install it themselves, saving on labor costs.

5. **Warranty Options Available** Some aftermarket brands offer warranties (e.g., **Fel-Pro, Mopar, or local specialty shops**), providing peace of mind if the part fails prematurely.

6. **Improves Driving Comfort & Safety** A worn control arm can cause excessive wheel movement, leading to a rough ride or handling issues. Replacing it restores proper alignment and stability, enhancing safety and comfort.

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1. **Potential for Counterfeit or Low-Quality Parts** Due to its popularity, there is a risk of purchasing a **fake or substandard part**, especially from untrusted online sellers. Always verify the part s authenticity (e.g., check for proper Audi branding, serial numbers, and seller reviews).

2. **Additional Wear May Exist** Even if the control arm itself is in good condition, the **ball joint, bushings, or tie rod ends** may be worn and require replacement simultaneously. A full suspension inspection is recommended before purchasing the part.

3. **Labor Costs if Not DIY** If taking the car to a mechanic, labor for suspension work can be **$100 $200 per hour**, depending on the shop. Some dealerships may charge more due to Audi-specific tools and expertise.

4. **Misalignment Risk** After replacement, the vehicle may need a **wheel alignment** to ensure proper tire contact and even wear. This adds **$50 $150** in extra cost.

5. **Bushing Wear on the New Part** Even a new control arm has **rubber bushings** that degrade over time. If the original bushings were worn, the new arm may fail prematurely unless the bushings are replaced as well.

6. **Potential for Other Suspension Issues** If the control arm was failing due to **underbody damage (e.g., from road debris or potholes)**, the problem may persist unless the root cause is addressed.

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Replacing the **Audi Q7 (4M0 407155C) front left lower control arm (forward)** is a **practical and cost-effective** solution to prevent further suspension degradation. The part is **readily available, relatively inexpensive, and improves ride quality and safety**. However, buyers must ensure they purchase a **genuine or high-quality aftermarket part** and inspect related components (ball joints, bushings) to avoid recurring issues.

If the car is already showing **uneven tire wear, clunks over bumps, or misalignment**, addressing the control arm is a **proactive repair** rather than a luxury. For those comfortable with basic mechanics, DIY installation is feasible, but those without experience should consult a trusted mechanic.

- **Buy from a reputable source** (Audi dealership, trusted online retailer, or a well-reviewed parts store).

- **Inspect or replace related suspension components** (ball joints, bushings) if they show signs of wear.

- **Get a wheel alignment** after installation to ensure optimal tire performance.

- **Consider upgrading bushings** if the originals were degraded, as they wear faster than the control arm itself.

- **Document the repair** for future reference, especially if selling the car later.

**Final Verdict:** This is a **worthwhile repair** for maintaining the Q7 s handling and preventing more expensive damage. Prioritize quality over cost to avoid future headaches.

Details:

Remember LEFT means the Drivers side of vehicle and RIGHT Passengers in our listings. Part Fitment and Compatibility.

part #: 4m0407155c prices

• $160.66-$280.99

specifications swabasus:

• for models: Q7
• for makes: Audi
• for years: 2016-2018
• mpn: 4m0407155c
• part type: Control Arm
• manufacturer warranty: 30 Day
• compatible part numbers: 4m0407151d, 4m0407151e, 4m0407151f
• tested: Tested, Cleaned And Inspected
• placement on vehicle: Front, Left
• fitment type: Direct Replacement

returns swabasus:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

offer swabasus:

• started: April 30, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

general swabasus:

• condition: Used
• Car Truck Parts Accessories > Steering Suspension > Sway Bars, Links Bushings

shipping swabasus:

• class: Standard
• service: Standard
• transit: 2-5 Days
• type: Fixed
• cost: $0.00

payments swabasus:

• wallet: Google-pay
• other
• credit card: Diners-club

seller swabasus:

• city: Waverly, Minnesota
• rating: 99.7%
• # reviews: 100299

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