fits model: W124. make: Mercedes. year: 1986–1993.

( Manufacturer Part Number: 0390241410CDP ), ( Part Type: Wiper Windshield Motor Transmission ), ( Placement On Vehicle: Front ), ( Country Of Origin: Germany ), ( Location: Wiper Transmission Bin )
The **Mercedes-Benz 0390241410CDP** wiper motor and transmission linkage assembly, produced for the **W124 model series (1986 1993)**, represents a critical component of the vehicle s electrical and mechanical systems, ensuring reliable operation of the windshield wipers under all driving conditions. This high-performance assembly combines precision engineering with robust durability, designed to withstand the demands of daily use while maintaining seamless integration with the W124 s sophisticated electrical architecture. The wiper motor itself is a self-contained unit featuring a **DC brushless or brushed electric motor**, depending on the specific model year and variant, paired with a **gear-driven transmission system** that converts rotational force into the smooth, synchronized motion required for both intermittent and continuous wipe cycles. The linkage mechanism, often referred to as the "wiper arm linkage" or "wiper drive shaft," is crafted from **high-grade steel or reinforced plastic**, ensuring minimal wear and resistance to corrosion critical attributes for vehicles exposed to varying environmental conditions. This assembly is engineered to interface seamlessly with the W124 s **intermittent wipe control system**, allowing for precise adjustments in wipe speed and pattern, while also accommodating the vehicle s **dual-speed wiper function** (slow and fast modes) for optimal visibility during light rain or heavy downpours. The **0390241410CDP** part number denotes a direct OEM replacement, meticulously calibrated to match the original equipment specifications, including torque settings, electrical resistance, and mechanical clearance, thereby guaranteeing compatibility with the W124 s wiper arm assembly, linkage rods, and electrical connectors. Whether used in a **190E, 190D, 300E, or 500SE**, this component is essential for maintaining operational integrity, as failure or malfunction can compromise driver visibility and safety. For restoration or maintenance projects, this wiper motor and linkage assembly is a must-have replacement part, offering a blend of **German engineering precision** and **long-term reliability** that aligns with Mercedes-Benz s reputation for excellence in automotive craftsmanship.
### Pros and Cons of buying a Mercedes-Benz W124 Windshield Wiper Motor and Transmission Linkage (Part Number: 0390241410CDP, Years: 1986 1993)
#### **Pros:**1. **Compatibility and Fitment** This part is specifically designed for the Mercedes-Benz W124 series (E-Class, 1985 1995), ensuring a direct fit without modifications. It is a direct replacement for the original equipment manufacturer (OEM) component, reducing the risk of installation issues.
2. **Reliability and Durability** Mercedes-Benz parts, even aftermarket or remanufactured ones, are generally built to last. The wiper motor and linkage are critical components, and a high-quality replacement ensures consistent performance, reducing the likelihood of frequent failures.
3. **Performance Improvement** If the original motor or linkage was failing intermittently (e.g., sticking, slow operation, or uneven wiping), a new unit can restore proper function. Modern remanufactured parts often include upgrades like improved seals or corrosion-resistant coatings, enhancing longevity.
4. **Cost-Effective Alternative to Full Replacement** Replacing just the wiper motor and linkage is far cheaper than buying a used or salvaged windshield assembly. This makes it a practical choice for owners who want to avoid the higher cost of a complete windshield swap.
5. **Ease of Installation** The part is designed for straightforward installation, especially if the original wiring and linkage points are intact. Many mechanics and DIYers can replace it in a few hours, reducing labor costs.
6. **Prevents Further Damage** A failing wiper motor or linkage can cause the wipers to drag on the glass, leading to scratches or even windshield cracks. Replacing it proactively prevents secondary damage.
7. **Availability of Remanufactured Options** Many reputable aftermarket suppliers (e.g., Dorman, OEPart, or Mercedes-Benz approved remanufacturers) offer this part at a fraction of the cost of a new OEM unit. These remanufactured parts undergo rigorous testing to meet OEM standards.
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#### **Cons:**1. **Age of the Vehicle** The W124 series is over 30 years old, meaning the vehicle may have other aging components (e.g., rusted chassis, worn suspension, or electrical issues) that could complicate repairs or maintenance. Buying just the wiper parts assumes the rest of the car is in decent condition.
2. **Potential for Counterfeit or Low-Quality Parts** While many suppliers offer genuine or remanufactured parts, some sellers may provide knockoffs or poorly remanufactured units. Buying from untrusted sources could result in early failure or poor performance. Always verify the supplier s reputation.
3. **Electrical or Wiring Issues** If the wiring harness or connectors for the wiper motor are damaged or corroded, replacing just the motor may not solve the problem. A thorough inspection of the electrical system is advisable before purchase.
4. **Limited Customization** Unlike newer vehicles, the W124 does not offer modern wiper features (e.g., rain sensors, variable speed settings). The replacement part will function as the original, with no upgrades beyond basic operation.
5. **Labor Costs for Installation** While the part itself is affordable, labor costs for installation (especially if the vehicle is in a hard-to-reach location) can add up. DIY installation is possible but may require patience, especially if the linkage or wiring is tricky to access.
6. **Environmental Factors** Older vehicles are more susceptible to environmental damage (e.g., rust, salt corrosion, or UV degradation of rubber components). If the wiper blades or linkage housing are already degraded, replacing just the motor may not fully resolve issues like leaks or binding.
7. **Resale Value Impact** Since the W124 is a classic, some owners prioritize original or restored parts. While replacing the wiper motor is a common maintenance task, purists might prefer OEM or restored components, potentially affecting resale appeal.
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### **Conclusion:**Buying the Mercedes-Benz W124 wiper motor and transmission linkage (0390241410CDP) is a **practical and cost-effective solution** for restoring or maintaining wiper functionality in your vehicle. The part is widely available, reliable, and designed for direct replacement, making it a smart choice for both DIYers and mechanics. However, it is essential to ensure the rest of the vehicle s systems (electrical, structural, and mechanical) are in reasonable condition to avoid further complications.
For owners who prioritize longevity and performance, investing in a **reputable remanufactured or OEM-certified part** from a trusted supplier is strongly recommended. Additionally, inspecting the wiring, linkage points, and surrounding components during installation will help prevent future issues.
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### **Recommendation:**1. **Verify the Part Number and Compatibility** Double-check that 0390241410CDP is the correct part for your specific W124 model year and trim. Some variations (e.g., automatic vs. manual wipers) may require slightly different components.
2. **Purchase from a Trusted Supplier** Opt for suppliers with positive reviews, clear return policies, and certifications (e.g., OEPart, Dorman, or Mercedes-Benz approved remanufacturers). Avoid unknown sellers to avoid counterfeit or low-quality parts.
3. **Inspect the Vehicle s Condition** Before purchasing, assess whether the wiper motor failure is isolated or part of a broader issue (e.g., rust, electrical gremlins). Addressing underlying problems (e.g., corroded connectors, leaking windshield seals) will extend the life of the new part.
4. **Consider Professional Installation** If you are unsure about wiring or linkage adjustments, hiring a mechanic to install the part can save time and ensure proper function. For DIYers, follow the vehicle s service manual carefully and take your time.
5. **Budget for Additional Components** If the wiper blades or linkage housing are worn, consider replacing them simultaneously to avoid future failures. High-quality blades (e.g., Bosch or Rain-X) can also improve performance.
6. **Document the Repair** Keep records of the part purchased and installation details. This can be useful for warranty claims (if applicable) or future reference if issues arise.
**Final Verdict:** This is a **worthwhile purchase** for most W124 owners experiencing wiper motor or linkage failure. The part is affordable, reliable, and easy to install, making it a no-brainer for maintaining your vehicle s functionality. Just ensure you address any accompanying issues to maximize the part s lifespan.
1986 - 1993 Mercedes-Benz 300E 260E. Expedited shipping is available with many orders. Must match part number and pictures. Factory Wiper Transmission Arm.
OEM used part pulled from a 1993 Mercedes-Benz 300E. All of the items will show some signs of wear, scratches and other blemishes may need cleaning. Donor Vehicle: 1993 Mercedes-Benz 300E. Condition: Used.
Options may vary. Part number: CDP. ME Auto parts sells mostly used or occasionally rebuilt items.