MERCEDES A2058851138 Benz Rear Bumper Lower Diffuser Valance C350E Cover 29-A

( Manufacturer Part Number: A2058851138 ), ( Part Type: Cover Bumper ), ( Country Of Origin: Germany )

Review MERCEDES Factory Oem benz Rear Bumper Lower Diffuser Valance Cover Trim 29-a fits 2016–2018

The **2016-2018 Mercedes-Benz C350e Rear Bumper Lower Diffuser Valance Cover (Part #29-A)** is a precision-engineered aftermarket component designed to seamlessly integrate with the iconic hybrid elegance of the C350e s rear end. Crafted to match the original equipment manufacturer (OEM) styling cues, this lower diffuser valance cover enhances both the aesthetic and functional performance of the vehicle s rear bumper assembly. The part is meticulously fabricated from high-quality, durable materials, ensuring a perfect fit with the existing bumper structure while maintaining the sleek, aerodynamic lines that define the C350e s hybrid identity. Its design incorporates subtle contours and precise panel lines, blending seamlessly with the lower diffuser and valance area, which not only restores the vehicle s factory appearance but also reinforces structural integrity. Whether restoring a previously damaged bumper or upgrading for a more polished look, this valance cover is engineered to meet the exacting standards of Mercedes-Benz enthusiasts, offering a blend of form and function that complements the vehicle s hybrid powertrain and premium build quality.

### **Pros and Cons of buying a Mercedes-Benz C350e Rear Bumper Lower Diffuser/Valance Cover (Part #29-A, 2016-2018)**

1. **OEM Fit and Finish** This part is designed to match the original equipment manufacturer (OEM) specifications, ensuring a seamless look and proper alignment with the rest of the bumper assembly. It avoids the mismatched appearance that can occur with aftermarket parts that are not precisely engineered for the C350e s specific design.

2. **Durability and Material Quality** Mercedes-Benz parts are typically made from high-quality materials, including reinforced plastics and durable coatings, which can withstand minor impacts, road debris, and environmental exposure better than some lower-cost alternatives. This reduces the risk of premature wear or cracking.

3. **Warranty and Reliability** Purchasing an OEM or genuine Mercedes part often comes with a warranty (if bought directly from an authorized dealer or reputable supplier), providing peace of mind in case of defects. Aftermarket parts may lack such guarantees, leaving you vulnerable to potential failures.

4. **Resale Value Protection** Maintaining the vehicle with OEM parts helps preserve its resale value, as buyers often prefer cars that have been kept in original or high-quality condition. Aftermarket modifications, especially non-OEM ones, can deter potential buyers or reduce the vehicle s perceived value.

5. **Compatibility with Other Systems** The valance cover integrates with the bumper s structural and aesthetic systems, including lighting, sensors (if applicable), and mounting points. An OEM part ensures all these components align correctly, reducing the risk of functional issues or misalignment.

6. **Ease of Installation** Since it is designed for the C350e, the part should fit without extensive modifications. Aftermarket parts may require cutting, drilling, or additional tools to achieve a proper fit, adding time and complexity to the repair or replacement process.

7. **Aesthetic Consistency** The C350e s design emphasizes sleek, aerodynamic lines. An OEM valance cover ensures the rear bumper retains its intended look, avoiding the " Frankenstein" appearance that can result from poorly fitted aftermarket parts.

---

1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives. The price for this specific valance cover (or a complete bumper assembly) will likely range between **$300 and $800**, depending on the supplier and whether it includes labor. This can be a substantial investment if the part is damaged due to an accident or wear.

2. **Limited Availability and Lead Times** OEM parts may not be readily available at local auto parts stores. You may need to order directly from Mercedes-Benz, an authorized dealer, or a specialty supplier, which can result in longer wait times (sometimes weeks). Aftermarket parts are often stocked at major retailers like AutoZone, O Reilly, or online marketplaces, providing quicker access.

3. **Potential for Overkill** If the damage to the valance cover is minor (e.g., a small crack or cosmetic chip), replacing the entire part may be unnecessary. In such cases, a partial repair or aftermarket patch might suffice, saving money and resources.

4. **Installation Labor Costs** While the part itself fits well, professional installation (especially if the bumper or surrounding components need adjustment) can add to the total cost. DIY installation is possible for those with mechanical experience, but it may void warranties or lead to improper fitting.

5. **Environmental and Ethical Considerations** OEM parts contribute to electronic waste when old parts are discarded. If sustainability is a concern, aftermarket parts (especially those made from recycled materials) or refurbished OEM parts may be a more eco-friendly alternative.

6. **Risk of Counterfeit Parts** If purchasing from third-party sellers (e.g., eBay, Amazon, or unverified online marketplaces), there is a risk of receiving counterfeit or substandard OEM parts. Always verify the seller s authenticity and check for genuine Mercedes-Benz branding or part numbers.

7. **Maintenance Overhead** Unlike aftermarket parts that may be easier to replace or repair, OEM parts require adherence to specific maintenance protocols. For example, cleaning or waxing the part may require special products to avoid damaging the coating.

---

Buying the **Mercedes-Benz C350e rear bumper lower diffuser/valance cover (29-A, 2016-2018)** as an OEM part is the **best choice for long-term reliability, fit, finish, and resale value**. It ensures the vehicle retains its premium appearance and functionality without compromising on quality. However, the **higher cost and potential lead times** make it less ideal for minor repairs or budget-conscious buyers.

For those on a tighter budget or dealing with cosmetic damage, **high-quality aftermarket alternatives** (e.g., from brands like **MagnaFlow, ACDelco, or local Mercedes specialists**) can offer a cost-effective solution while still maintaining a professional look. Always prioritize parts that are **specifically designed for the C350e** to avoid fitment issues.

If the damage is **structural or functional** (e.g., cracked plastic affecting water drainage or sensor alignment), **OEM is the safest option**. For **purely aesthetic fixes**, aftermarket parts may suffice.

---

- **Purchase the OEM part directly from Mercedes-Benz or an authorized dealer** to ensure authenticity and warranty coverage. This is ideal for maintaining the vehicle s integrity and resale value.

- **Opt for a reputable aftermarket part** from a brand known for Mercedes compatibility (e.g., **MagnaFlow, ACDelco, or local specialty shops**). Verify reviews and ensure the part is designed for the C350e s exact model year.

- If attempting to replace the part yourself, **double-check the fitment** by comparing the new part to the old one. Use high-quality adhesives or bolts (as specified in the service manual) to ensure a secure installation.

- If the valance cover is damaged, check for **water leaks, misaligned sensors (if equipped), or structural bumper damage**. Addressing these issues simultaneously will prevent future problems.

- If the bumper or adjacent components (e.g., fog lights, sensors) need realignment, a **Mercedes-certified technician** can ensure everything is properly adjusted, avoiding potential safety or functionality issues.

**Final Verdict:** For the C350e owner who values **premium quality and longevity**, the OEM part is the best investment. For those balancing cost and convenience, a **high-quality aftermarket alternative** can be a practical compromise **as long as it is specifically designed for the C350e**. Always prioritize **fit, finish, and compatibility** over price alone.

Details:

Warranty only applies to parts purchased and does not cover labor costs. Parts must be installed by a certified mechanic.: All parts are tested and guaranteed to work unless otherwise stated sold as is. Donor Vehicle: 2016 2018 Mercedes-Benz C350e, 2008 2015 C63 AMG.

A Austin I ports. Compatibility: The item in this add are guaranteed to fit the exact make, model, engine/transmission configuration and year of vehicle described above. I n e rs a 3/5 s M c o, X. Item: Rear Lower Valance Cover - Used Visible cosmetic blemishes as shown please view pictures for further details.

Please review the pictures for further details.

part #: a2058851138 prices

• $150.39-$259.95

specifications vintagecarbumperus:

• for makes: Mercedes
• for years: 2016-2018
• mpn: A2058851138
• part type: Cover Bumper
• country of origin: Germany

seller vintagecarbumperus:

• city: San Marcos, Texas
• # reviews: 18767
• rating: 99.6%

offer vintagecarbumperus:

• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• started: May 22, 2026

general vintagecarbumperus:

• Exterior Parts Accessories > Bumpers Components > Bumper Inserts Covers
• condition: Used

shipping vintagecarbumperus:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 5-11 Days

returns vintagecarbumperus:

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

payments vintagecarbumperus:

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

Mercedes A2058851138 Is Similar To:

• 000-987-47-35 Bumper Guard Seal Gasket Rubber Meter Mercedes Black (21.2% similar) New in plastic one meter of trim...(June 6th, 2018)
• 0008880160 Mercedes Benz Grill Star (36% similar) Item is new and has never been installed in a vehicle. We'll be happy to get you the right part...(November 5th, 2018)
• Bumper Front 10-180-880-18-55 Part 220s Guard 1956-1959 Benz Mercedes (18.5% similar) Nos mercedes benz 220S pontoon right front bumper guard part 55...(August 13th, 2014)
• 190 180 Mercedes Benz Bumper Ponton W120 101208800172 W121 (35.8% similar) Please look over photographs. One scratch that has any real depth is photographed. In any case, I can assure you that the part is in working order. Sometimes these parts although new, may have minor cosmetic defects such as small scratches, etc. Mercedes benz W120 W121 pontoon bumper end photos to ...(January 20th, 2015)
• 101208800248 Mercedes Bumper Bracket Rear Right Ponton (36.7% similar) I do combine shipping charges.message me if you would like to create a package deal of 5 items or more. Please look at pictures carefully. These are used parts with imperfections, wear age and light scratches as seen in the pictures. Bracket is a used genuine oem mercedes-benz part ref P999401 over ...(March 31st, 2018)
• 101208800855 Mercedes Bumper Rear Right Ponton (38.7% similar) I do combine shipping charges. Message me if you would like to create a package deal of 5 items or more. These are used parts with imperfections, wear age and light scratches as seen in the pictures. Please look at pictures carefully. Guard is a used genuine oem mercedes-benz part ref P999400 over ...(March 31st, 2018)
• 380sl 380slc 450slc R107 693 450sl W107 Cover 33 1973-1981 Spare 107 Trunk Mercedes Tire 00 (17.4% similar) We refuse to pay, or charge, inflated shipping costs. Items shipped outside of the us will not be declared as gifts or valued at less than the selling price. Vintage original, mercedes benz R107 W107 450 LC trunk floor located spare tire cover. Hold strap is still present. One of the four mounting ...(August 18th, 2014)
• Trunk 380slc Trim Lights W107 R107 450sl 107 1076901580 License 690 380sl Mercedes 15 450slc 1973-1985 80 (24.9% similar) Donor car in last picture. Posted with the android app. We refuse to pay, or charge, inflated shipping costs. Vintage original, mercedes benz R107 W107 450 LC rear panel deck lid trunk boot lower trim, with license plate lights. Thin chrome and minor surface pitting, use on a driver or service car, ...(September 13th, 2014)
• 1076905530 Mercedes-benz Beautiful 86 87 (40.3% similar) Beautiful 560SL mercedes R107 spare tire cover trunk this is a quality used mercedes-benz part taken off 87. All parts are tested on the car then whenever possible go through secondary bench testing. This part may be listed to fit the year and model of car, that does not mean it will automatically ...(December 24th, 2017)
• 1078200112 Mercedes-benz Mercedes W107 Trunk (37.8% similar) Please look at pictures carefully. Latch is a used genuine oem mercedes-benz part ref BTP000017 removed from W107 450SL 1973 over 10,000 items in stock nos, used, restored item . Message me if you would like to create a package deal of 5 items or more. Package deals come with a discount off total ...(January 26th, 2018)
• Shock Mercedes 1078800114 Front Bumper 107 1973-80 Left Benz 450 Sl (29.2% similar) ...(December 14th, 2014)