1. Throttle Body For Sale
  2. sku: 11745379104975633
  3. MERCEDES 1403010043

MERCEDES 1403010043 Throttle Spring Benz

fits model: W208, W210. make: Mercedes.

1403010043 Mercedes-benz W208 W210 Throttle Return Spring

( Manufacturer Part Number: 1403010043 ), ( Type: Throttle Body ), ( Features: Individual )

Review MERCEDES benz Throttle Return Spring fits W208 W210

The **Mercedes-Benz 1403010043 Throttle Spring** is a precision-engineered component designed exclusively for the **W208 (2004 2014) and W210 (2014 2021) model generations**, including the C-Class, E-Class, and GLK-Class vehicles equipped with gasoline direct-injection (GDI) engines. This high-performance spring is a critical part of the throttle body assembly, responsible for maintaining consistent throttle response, ensuring smooth acceleration, and preventing unwanted engine stalling or hesitation. Crafted from durable, corrosion-resistant materials, the throttle spring is engineered to withstand the rigorous demands of modern automotive systems, including frequent throttle inputs, high-speed driving, and varying environmental conditions. Its unique design features a calibrated tension that optimizes the return of the throttle valve to its closed position, reducing wear on the throttle body and improving overall engine efficiency. This component is particularly vital for drivers who prioritize responsive performance, as it directly influences the throttle s precision and reliability, contributing to a seamless driving experience. Whether used in replacement due to wear, as part of a throttle body service, or as a preventive measure to enhance engine longevity, the **Mercedes-Benz 1403010043 Throttle Spring** exemplifies the brand s commitment to engineering excellence and performance-driven engineering. Its compatibility with a wide range of Mercedes-Benz models ensures seamless integration, making it an essential upgrade for both maintenance and performance-focused enthusiasts.

### **Pros and Cons of buying a Mercedes-Benz Throttle Spring (Part Number 1403010043 for W208/W210 Models)**

#### **Pros:**

1. **Direct OEM Fitment** This is an original equipment (OEM) or high-quality aftermarket part designed specifically for Mercedes-Benz W208 (GLA) and W210 (GLB) models. It ensures proper compatibility with the vehicle s throttle body and engine management system.

2. **Improved Throttle Response** A faulty or worn throttle spring can cause sluggish acceleration, hesitation, or erratic idle. Replacing it with a new one restores smooth throttle operation, reducing jerkiness and improving driving feel.

3. **Prevents Long-Term Damage** A failing throttle spring can lead to further issues, such as a malfunctioning throttle body, engine misfires, or even failure of the throttle actuator motor. Replacing it proactively avoids more expensive repairs.

4. **Easy Installation** The throttle spring is a relatively simple component to replace, typically requiring only basic tools. Many DIYers can install it without professional assistance, saving labor costs.

5. **Cost-Effective Solution** Compared to replacing the entire throttle body or dealing with engine-related symptoms, a throttle spring replacement is a low-cost fix (typically under $50 for the part).

6. **Compatibility with Common Symptoms** If your vehicle exhibits symptoms like:

- Rough idle

- Stalling or hesitation

- Unresponsive accelerator pedal

- Check Engine Light (P0120, P0121, P0122, P0123, etc.)

This part is likely the culprit, making it a targeted solution.

7. **Aftermarket Availability** While this is an OEM part, many reputable aftermarket suppliers offer identical or superior-quality replacements at competitive prices.

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#### **Cons:**

1. **Potential Counterfeit Parts** If purchasing from an untrusted seller (especially online marketplaces), there is a risk of receiving a low-quality or fake part that fails prematurely. Always buy from authorized dealers or well-reviewed suppliers.

2. **Symptoms May Persist** If the throttle body itself is dirty, damaged, or contaminated (e.g., with carbon deposits), replacing just the spring may not fully resolve issues. A throttle body cleaning or replacement may still be needed.

3. **DIY Risk for Inexperienced Mechanics** While the installation is straightforward, improper handling (e.g., damaging the throttle body or wiring) can lead to further problems. Those unfamiliar with throttle body work may struggle.

4. **Limited Longevity in Harsh Conditions** In extreme driving conditions (e.g., heavy towing, aggressive acceleration, or frequent short trips), the throttle spring may wear out faster than expected. Regular maintenance is still necessary.

5. **Check Engine Light May Return** If the underlying cause (e.g., a faulty throttle position sensor or wiring issue) isn t addressed, the CEL may reappear after replacement. A diagnostic scan is recommended post-installation.

6. **Part Availability Concerns** While widely available, stock issues can occur, especially for older models. Ordering in advance is advisable.

---

### **Conclusion:**

The Mercedes-Benz throttle spring (1403010043) for W208/W210 models is a **practical and cost-effective solution** for vehicles experiencing throttle-related symptoms. It directly addresses common issues like hesitation, rough idling, and accelerator pedal lag while being relatively easy to install. However, it is not a universal fix underlying throttle body or sensor problems may still require attention.

For most drivers encountering these symptoms, replacing the throttle spring is a **recommended first step** before investing in more complex repairs. If symptoms persist after replacement, further diagnostics (e.g., throttle body cleaning, sensor testing) should be conducted.

### **Recommendation:**

- **Purchase from a trusted source** (Mercedes-Benz dealership, reputable aftermarket supplier, or authorized parts distributor) to avoid counterfeit parts.

- **Inspect the throttle body** during installation clean it if necessary to ensure optimal performance.

- **Clear the CEL** after installation and monitor driving behavior for improvements.

- **Consider professional installation** if unsure about handling the throttle body to prevent damage.

- **Combine with regular maintenance** (e.g., throttle body cleaning every 30,000 50,000 miles) to extend the lifespan of the component.

For most cases, this part provides a **simple, effective, and budget-friendly fix** for throttle-related issues in W208/W210 vehicles.

Details:

This is a good used Mercedes W210 W140 W208 throttle return spring on many model's from 95-03.

part #: 1403010043 price

  • $28.84

specifications throobo:

  • for models: W208, W210
  • for makes: Mercedes
  • mpn: 1403010043
  • type: Throttle Body
  • features: Individual

shipping throobo:

  • service: Economy
  • transit: 3-7 Days
  • class: Economy
  • type: Fixed
  • cost: $8.00

seller throobo:

  • # reviews: 1377
  • rating: 98.9%
  • city: Portland, Oregon

offer throobo:

  • options: Ship-to-home
  • started: May 11, 2026
  • sold: 0
  • availability: In Stock
  • best offers: True
  • quantity: 1

returns throobo:

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

payments throobo:

  • wallet: Apple-pay
  • other
  • credit card: Mastercard

general throobo:

  • Car Truck Parts Accessories > Air Fuel Delivery > Throttle Bodies
  • condition: Used
for models: w208, w210, for makes: mercedes, type: throttle body, features: individual,
category: auto parts > car truck parts accessories > air fuel delivery > throttle bodies, sku: 11745379104975633,
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