AUDI 3V5-827-887-B Lift Gate Lock Actuator SQ5 643.AU1320 5TA827887C

( Manufacturer Part Number: 3V5-827-887-B ), ( Model: SQ5-AUDI ), ( Type: Liftgate Lock ), ( Conditions Options: Lift Gate Lock Actuatr 3v5 827 887 B ), ( Genuine Oem: Yes ), ( Ipn: 643.au1320 ), ( Year: 2020 )

Review AUDI Lift Gate Lock Actuator Part fits 2018–2021

The **Audi 643.AU1320 lift gate lock actuator (5TA827887C)**, a critical component of the **Audi SQ5 (B9) and S5 (B9) models spanning the production years 2018 through 2021**, represents the pinnacle of precision engineering in modern automotive electronics. This high-performance actuator is designed to seamlessly integrate with the vehicle s advanced **electronic door lock system**, ensuring flawless operation of the rear lift gate under all driving and environmental conditions. Crafted from durable, corrosion-resistant materials, this actuator is engineered to withstand the rigors of daily use, from extreme temperature fluctuations to prolonged exposure to moisture and road debris, all while maintaining optimal functionality. The **5TA827887C** features a **direct-drive motor mechanism**, delivering smooth, silent engagement and disengagement of the lift gate latch with minimal wear, thereby extending the lifespan of both the actuator and the associated locking mechanism. Its **highly precise gearing system** ensures consistent and reliable performance, even under heavy loads or during rapid sequential activations a common occurrence in high-performance or luxury vehicles where convenience and security are paramount. This actuator is fully compatible with Audi s **MULTIMEDIA and COMAND systems**, allowing for seamless integration with the vehicle s central locking controls, including remote keyless entry, push-button activation, and smartphone-based unlocking via the **Audi Connect app**. Whether navigating tight parking spaces, dealing with inclement weather, or simply enjoying the convenience of a hands-free lift gate, this component ensures a **smooth, secure, and hassle-free experience** a hallmark of Audi s commitment to driver-centric innovation. For enthusiasts and professionals alike, the **643.AU1320** is not merely a replacement part but a testament to Audi s dedication to **cutting-edge automotive technology**, where every detail is optimized for performance, durability, and user satisfaction.

### **Pros and Cons of buying a Audi 643.AU1320 (2018 2021 SQ5 Lift Gate Lock Actuator Part 5TA827887C)**

1. **Direct Fitment** This part is specifically designed for the **2018 2021 Audi SQ5 (A8L platform)**, ensuring compatibility without modifications. It replaces the stock lift gate lock actuator, which may fail due to wear, electrical issues, or corrosion.

2. **Improved Reliability** The stock actuator can fail intermittently, causing the lift gate to stick, not latch properly, or require manual assistance. A high-quality replacement ensures smoother operation and reduces the risk of future failures.

3. **Better Durability** Aftermarket or OEM-quality actuators are often built with more robust materials and tighter tolerances than the original, reducing the likelihood of premature wear or failure.

4. **Easier Installation** Since it s a direct replacement, installation is straightforward for those with basic mechanical or automotive skills. Most users report it takes **30 60 minutes** with standard tools.

5. **Cost-Effective Alternative to Full Lift Gate Replacement** Replacing just the actuator is far cheaper than overhauling the entire lift gate mechanism, which can cost **$800 $1,500 ** in labor and parts.

6. **Warranty Coverage** If purchasing from a reputable seller (e.g., **OEM, Genuine Audi parts, or trusted aftermarket brands like ACDelco, Bosch, or Dorman**), the part may come with a **1-year warranty**, providing peace of mind.

7. **Prevents Further Damage** A failing actuator can strain the lift gate s wiring harness, sensors, or even the gate itself. Replacing it early prevents secondary issues that could escalate into costly repairs.

8. **Available from Multiple Sources** You can find this part on **Amazon, eBay, RockAuto, Audi specialty shops, or directly from Audi dealerships**, giving you options for pricing and availability.

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1. **Potential Counterfeit Parts** Some sellers on **eBay, AliExpress, or Amazon** may offer **fake or low-quality replicas**, which can fail quickly or not fit properly. Always verify the seller s reputation and check for **authentic OEM or brand markings**.

2. **Electrical or Sensor Issues May Persist** If the problem stems from a **corroded wiring harness, faulty sensor, or central locking system failure**, replacing just the actuator may not fully resolve the issue. A **diagnostic check** is recommended before purchase.

3. **Mismatched Quality** Some aftermarket actuators may be **cheaply made**, leading to **stiff operation, early failure, or compatibility issues**. OEM parts are the safest bet but may cost more.

4. **Installation Challenges for Beginners** While the part is a direct fit, **removing the old actuator requires disconnecting wiring, possibly trimming harnesses, and securing the new one properly**. Those unfamiliar with automotive work may struggle.

5. **Price Variability** Prices range from **$50 $200 **, depending on whether it s **OEM, aftermarket, or a used/refurbished unit**. Overpaying for a generic part is possible if not researching thoroughly.

6. **No Free Return Policy Risk** If the part arrives damaged or doesn t fit, **shipping it back for a refund can be costly**. Always inspect the package upon arrival.

7. **Additional Tools May Be Needed** Some installations require **torque wrenches, special socket adapters, or a scan tool** to reset the central locking system after replacement.

8. **Warranty Transfer Issues** If buying from a private seller (e.g., eBay), **warranty transfer may not be possible**, leaving you without coverage if the part fails.

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### **Conclusion**

Buying the **Audi 643.AU1320 (5TA827887C) lift gate lock actuator** for your **2018 2021 SQ5** is a **practical and cost-effective solution** if the issue is isolated to the actuator itself. It restores functionality, prevents further damage, and is easier to install than a full lift gate replacement.

- **Prioritize OEM or reputable aftermarket brands** (e.g., **Bosch, Dorman, ACDelco, or Audi-approved suppliers**).

- **Check seller ratings and reviews** before purchasing, especially on third-party platforms.

- **Verify compatibility** with your exact model year and trim (some variants may have slight differences).

- **Consider professional installation** if unsure about wiring or mechanical adjustments.

If the lift gate issue persists after replacement, **rule out electrical or sensor problems** before concluding the actuator is the sole culprit.

---

### **Final Recommendation**

**Best Option:** Purchase from a **trusted Audi dealer, RockAuto, or a well-reviewed aftermarket supplier** (e.g., **Amazon with 4.5 star ratings, eBay with verified positive feedback**). Opt for **OEM or Bosch/Dorman** for reliability.

**Budget-Friendly Alternative:** If cost is a concern, check **used/refurbished units** from **eBay or Facebook Marketplace**, but **inspect for wear and test before buying**.

**Avoid:** Cheap generic parts from unknown sellers, as they may fail quickly or not fit properly.

**Pro Tip:** After installation, **reset the central locking system** using an **OBD-II scanner** or by cycling the key fob to ensure proper recognition of the new actuator.

**Expected Outcome:** With a **high-quality part and proper installation**, this repair should **last 3 5 years**, restoring smooth lift gate operation without major issues.

Details:

The part has a mileage of 20,000 and is classified as used item. It is a genuine part designed for Audi vehicles, specifically the 18-21 SQ5 model. The product is an OEM Audi SQ5 lift gate lock actuator part with the manufacturer number 3V5 827 887 B. This part is essential for the proper functioning of lift gate on Audi SQ5.

part #: 3v5827887 prices

• $25.80-$28.12

specifications carlockiio:

• for makes: Audi
• for years: 2018-2021
• mpn: 3v5-827-887-b
• model: Sq5-audi
• type: Liftgate Lock
• conditions options: Lift Gate Lock Actuatr 3v5 827 887 B
• genuine oem: Yes
• ipn: 643.au1320
• year: 2020

returns carlockiio:

• policy: No Returns

shipping carlockiio:

• type: Calculated
• cost: $19.48
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• transit: 4-9 Days
• carrier: FedEx

offer carlockiio:

• best offers: True
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: February 19, 2026
• quantity: 1

payments carlockiio:

• other
• credit card: Visa
• wallet: Google-pay

general carlockiio:

• condition: Used
• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

seller carlockiio:

• city: wood stock, Georgia
• rating: 98.7%
• # reviews: 147

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