1. Sunroof, Convertible & Hardtop Auto Parts For Sale
  2. sku: 16670083592753782
  3. MERCEDES A2028203142

MERCEDES A2028203142 Sunroof Moon Roof Motor Unit Benz

fits model: C240, E320. make: Mercedes. year: 1994–2009.

A2028203142 Mercedes-benz 2001-2005 C240 94-09 E320 Sunroof Moon Roof Motor Unit Oem

( Manufacturer Part Number: A2028203142 ), ( Removed From: 2005 Mercedes-benz C240 4matic Wagon 4-dr 2.6l V6 Sohc 18v 5-spee ), ( Genuine: Oem ), ( Custom Bundle: No ), ( Items Included: As Shown ), ( Placement On Vehicle: Upper, Roof, Front ), ( Manufacturer Warranty: Other ), ( Features: Easy Installation, Motorized ), ( Id: E-a170643 446 Jc-kr ), ( Finish: Unfinished ), ( Part Type: Sunroof Motor ), ( Warranty: 30 Day ), ( Color: Silver ), ( Fitment Type: Direct Replacement ), ( Material: Aluminum, Steel ), ( Ipn: 1994-2009 E320 ), ( Oe/oem Part Number: A-202-820-31-42, A202-820-31-42, 202-820-31-42 ), ( Attachment Type: Bolt-on ), ( Country Of Origin: Germany )

Review MERCEDES benz Sunroof Moon Roof Motor Unit Oem fits C240 E320 1994–2009

The **Mercedes-Benz A2028203142 Sunroof/Moon Roof Motor Unit (2001 2005 C240, 94.09, E320)** is a precision-engineered component designed to deliver seamless, quiet operation and effortless control of the iconic sliding sunroof found in the luxury W210 and W211 series vehicles. This motorized unit, manufactured to Mercedes-Benz s exacting standards, is built to ensure smooth, vibration-free movement while maintaining the structural integrity and weatherproofing of the roof assembly. The motor itself is a robust, high-torque electric actuator, capable of effortlessly sliding the sunroof panel along its rails with minimal effort, even under varying load conditions. Engineered with a durable brushless DC motor and a robust gear reduction system, it provides reliable performance over thousands of cycles, minimizing wear and tear while ensuring longevity. The unit is designed to integrate seamlessly with the vehicle s electrical system, featuring a robust wiring harness and a secure mounting bracket that aligns perfectly with the factory installation points, preventing misalignment or rattling over time. Whether used in a classic E320 (W210) or the slightly refined W211 models, this motor unit ensures that the sunroof operates with the same smooth, silent efficiency as the original equipment, enhancing both convenience and the vehicle s aesthetic appeal. Ideal for restorers, customizers, or owners seeking to replace a worn or failed sunroof mechanism, this part is a direct-fit replacement that maintains the vehicle s premium feel while restoring functionality. Built to withstand the demands of daily use, it is also resistant to environmental factors such as moisture and dust, ensuring reliable performance in various conditions. With its robust construction and Mercedes-Benz quality, this motor unit is a must-have for anyone looking to restore or upgrade the sunroof system in their W210 or W211 model.

### Pros and Cons of Buying a Mercedes-Benz C240/C320 (2001 2005) with a Sunroof/Moonroof Motor Unit (Part Number: A2028203142)

#### **Pros**

1. **Classic Mercedes-Benz Design and Prestige**

The C240 and C320 from this era are iconic, offering a refined, upscale driving experience with a strong brand reputation. The interior is well-crafted, with high-quality materials and a commanding driving position.

2. **Strong Engine Options**

- The **C240** (M111 2.4L V6) produces around **170 184 horsepower**, providing a smooth and capable performance for the time.

- The **C320** (M111 3.2L V6) generates **218 231 horsepower**, offering better acceleration and a more luxurious feel. Both engines are reliable if maintained properly.

- The **E320** (M112 3.2L V6) in later models (2003 ) is a more modern iteration with improved fuel injection and power ( 231 hp).

3. **Comfortable and Spacious Interior**

The cabin is roomy, with good legroom for front and rear passengers. The seats are supportive, and the overall fit-and-finish is better than many competitors in this class.

4. **Sunroof/Moonroof Convenience**

A functional sunroof/moonroof adds to the car s appeal, making it more enjoyable for long drives and daily use. The motorized unit (A2028203142) is a desirable feature, though it may require occasional maintenance.

5. **Resale Value and Collectibility**

Older Mercedes-Benz models, especially well-maintained ones, hold value better than many domestic or Asian competitors. Some enthusiasts seek out this generation for its blend of luxury and driving dynamics.

6. **Available Safety and Comfort Features**

Depending on the trim, these models may include features like:

- Power-adjustable seats

- Cruise control

- Heated seats (on higher trims)

- ABS and airbags (standard by this era)

- Some later models had optional navigation systems.

7. **Potential for Modifications and Upgrades**

The C-Class platform allows for aftermarket tuning (e.g., exhaust, suspension upgrades) and cosmetic enhancements, which can improve both performance and aesthetics.

---

#### **Cons**

1. **Aging Reliability Concerns**

- **Timing Chain Issues:** The M111 engine (pre-2003) is notorious for timing chain stretch, which can lead to catastrophic engine failure if neglected. Later models (M112) are more reliable but still require proper maintenance.

- **Water Pump and Thermostat Failures:** Common in this era, often leading to overheating if not addressed.

- **Transmission Problems:** Some owners report issues with the 7G-Tronic automatic transmission (in later models) or the 722.6 gearbox, including rough shifting or premature wear.

- **Electrical Gremlins:** Older Mercedes are prone to electrical faults, such as faulty sensors, wiring issues, or dashboard malfunctions.

2. **High Maintenance Costs**

- Mercedes parts and labor are expensive, especially for specialized components like the sunroof motor or engine internals.

- Regular upkeep (e.g., timing chain inspection, cooling system flushes) is critical but costly.

3. **Sunroof/Moonroof Reliability**

- The motor unit (A2028203142) may fail over time, leading to leaks, erratic operation, or complete failure. Replacement motors can be pricey ( $500 $1,000 ), and labor-intensive to install.

- Leaks around the sunroof frame are common, requiring sealant or replacement gaskets.

4. **Fuel Economy Limitations**

- The V6 engines are thirsty by modern standards, averaging **16 20 MPG combined** (city/highway). Gasoline prices can significantly impact ownership costs.

5. **Depreciation and Market Saturation**

- While these cars hold value better than many, they are not investment-grade. The market is saturated with examples, making it harder to find a truly "clean" specimen.

- Rust, especially in the wheel wells, rocker panels, and undercarriage, is a common issue in older Mercedes, particularly in snowy or salted climates.

6. **Driving Dynamics Quirks**

- The C-Class is known for a stiff ride, especially on rough roads. Suspension components (shocks, bushings) may wear out over time.

- Some owners report steering vagueness or power steering leaks in older models.

7. **Parts Availability and Scarcity**

- While not as critical as in the past, some original parts (e.g., specific sensors, wiring harnesses) may become harder to source as the model ages.

- Rebuilding or restoring these cars requires patience and possibly custom fabrication for rare components.

8. **Environmental and Emissions Concerns**

- Older Mercedes may not meet modern emissions standards, limiting their use in some areas or requiring modifications (e.g., catalytic converter swaps).

---

### **Ending Conclusion**

Buying a **2001 2005 Mercedes-Benz C240/C320/E320 with a sunroof/moonroof motor unit** can be a rewarding experience if you prioritize luxury, driving pleasure, and long-term enjoyment over cost efficiency. These cars offer a timeless blend of German engineering, comfort, and prestige, but they demand **attention to maintenance, budgeting for repairs, and patience** especially regarding the sunroof motor and engine longevity.

The sunroof itself is a major selling point, but its reliability is a double-edged sword. If the motor unit is failing or the seals are leaking, repairs can be expensive and disruptive. However, if you re prepared to invest in upkeep and enjoy the classic Mercedes experience, this car can be a fantastic daily driver or weekend project.

---

### **Recommendation**

1. **If You re a Mercedes Enthusiast or Collector:**

- **Buy it** if you can afford the maintenance and are willing to restore or maintain it properly. Focus on models with **low mileage (under 80,000 miles), full service records, and no major rust or engine issues**.

- Prioritize the **E320 (M112 engine, 2003 )** over the older M111 V6 for better reliability.

- **Test the sunroof thoroughly** ensure the motor operates smoothly, there are no leaks, and the seals are intact. Consider replacing the motor if it s failing, as it s a common failure point.

2. **If You re a Budget-Conscious Buyer:**

- **Avoid it** unless you re prepared for unexpected repairs. Consider a **used luxury alternative** (e.g., BMW 3-Series, Audi A4, or Lexus ES) that may offer better long-term reliability at a similar price.

- If you must buy a Mercedes, look for a **well-documented example with a service history** and budget **10 15% of the purchase price** for immediate repairs (e.g., timing chain inspection, cooling system flush, sunroof seal replacement).

3. **If You re Buying for Resale Value:**

- These cars hold value better than most, but not enough to justify neglect. A **clean, low-mileage example in good condition** will appeal to collectors but may not be a smart financial investment for the average buyer.

4. **Critical Checks Before Purchase:**

- **Engine:** Verify timing chain condition (replace if stretched), check for oil leaks, and inspect the water pump and thermostat.

- **Transmission:** Listen for unusual noises during shifts and check fluid condition.

- **Sunroof:** Test the motor, seals, and drainage leaks can cause interior damage.

- **Body:** Inspect for rust, especially around the wheel wells, sills, and undercarriage.

- **Electrics:** Test all lights, sensors, and dashboard functions.

5. **Budget for the Long Term:**

- Plan for **annual maintenance** (e.g., $1,000 $2,000/year) to keep the car running smoothly. Major repairs (e.g., engine rebuild, transmission swap) can cost **$5,000 $10,000 **.

### **Final Verdict:**

**Buy if:** You love Mercedes-Benz, have the budget for maintenance, and prioritize driving experience over cost. **Avoid if:** You re looking for a hassle-free, low-cost luxury car or can t commit to the upkeep required to keep it reliable.

For the best balance, consider a **later-model C-Class (2005 2007) with the M112 engine**, as it s more refined and reliable than the earlier M111 models. Always **inspect thoroughly, get a pre-purchase inspection, and negotiate based on needed repairs**.

Details:

They are 100% original OEM products. Tested Quality. THANKS IN ADVANCE, Capitally. 2001 - 2005 MERCEDES C240 94-09 E320 SUNROOF MOON ROOF MOTOR UNIT, Part Number A202-820-31-42 /, Genuine OEM.

Review all photos carefully to better assess cosmetic condition, 100% PERFECT WORKING ORDER. Pre-Owned Part. Used items may show signs of wear.

part #: a2028203142 price

  • $49.97

specifications sunroofconverti:

  • for models: C240, E320
  • for makes: Mercedes
  • for years: 1994-2009
  • mpn: A2028203142
  • removed from: 2005 Mercedes-benz C240 4matic Wagon 4-dr 2.6l V6 Sohc 18v 5-spee
  • genuine: Oem
  • custom bundle: No
  • items included: As Shown
  • placement on vehicle: Upper, Roof, Front
  • manufacturer warranty: Other
  • features: Easy Installation, Motorized
  • id: E-a170643 446 Jc-kr
  • finish: Unfinished
  • part type: Sunroof Motor
  • warranty: 30 Day
  • color: Silver
  • fitment type: Direct Replacement
  • material: Aluminum, Steel
  • ipn: 1994-2009 E320
  • oe/oem part number: A-202-820-31-42, A202-820-31-42, 202-820-31-42
  • attachment type: Bolt-on
  • country of origin: Germany

general sunroofconverti:

  • Exterior Parts Accessories > Roofs, Tops Sunroofs > Sunroofs Parts
  • condition: Used

shipping sunroofconverti:

  • carrier: USPS, UPS
  • type: Fixed
  • cost: $0.00
  • service: USPS Ground Advantage, UPS Ground Saver
  • class: Standard, Economy
  • transit: 3-7 Days

offer sunroofconverti:

  • sold: 0
  • availability: In Stock
  • best offers: True
  • quantity: 1
  • started: May 27, 2026
  • options: Ship-to-home

seller sunroofconverti:

  • # reviews: 31666
  • rating: 99.9%
  • city: Columbus, Ohio

payments sunroofconverti:

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

returns sunroofconverti:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted
for models: c240, e320, for makes: mercedes, for years: 1994-2009, removed from: 2005 mercedes-benz c240 4matic wagon 4-dr 2.6l v6 sohc 18v 5-spee, genuine: oem, custom bundle: no, items included: as shown, placement on vehicle: upper, roof, front, manufacturer warranty: other, features: easy installation, motorized, id: e-a170643 446 jc-kr, finish: unfinished, part type: sunroof motor, warranty: 30 day, fitment type: direct replacement, oe/oem part number: a-202-820-31-42, a202-820-31-42, 202-820-31-42, attachment type: bolt-on, country of origin: germany,
category: auto parts > exterior parts accessories > roofs, tops sunroofs > sunroofs parts, color: silver, material: aluminum, steel, sku: 16670083592753782,
Mercedes A2028203142 Is Similar To:
sunroofconverti logo
1 offer $49.97 USD
  • Used. Offer #1 priced at $49.97 + $0.00 shipping estimate = $49.97* total. 100% PERFECT WORKING ORDER Genuine OEM.FREE SHIPPING

Copyright © sunroofconverti.com