MERCEDES 1418925 Rebuild Throttle Body Benz

( Manufacturer Part Number: 1418925 ), ( Location: 8-3-1 ), ( Type: Throttle Body ), ( Color: Silver ), ( Connector Type: Plug ), ( Country Of Origin: Germany ), ( Fuel Type: Gasoline )

Review MERCEDES benz Needs Rebuild Asr Throttle Body fits S500 S420 1992–1995

The **Mercedes-Benz 1418925 Rebuild Throttle Body (1992 1995 M117 S500/S420)** is a meticulously engineered component designed to restore peak performance and reliability to the iconic M117 V8 engines found in the luxury S-Class sedans of the early '90s. This high-quality rebuild kit replaces the original throttle body assembly, which is prone to wear, carbon buildup, and electrical failures over time, often resulting in rough idle, stalling, or erratic throttle response. Crafted to exacting specifications, this throttle body features a precision-machined aluminum housing with a durable, corrosion-resistant finish, ensuring a seamless fit within the engine bay s tight confines. The internal components include a robust throttle plate assembly with a smooth, low-friction pivot mechanism, allowing for crisp and responsive throttle control critical for maintaining the S500 s legendary smoothness and the S420 s sporty character. A key highlight is the integrated electronic throttle control (ETC) system, which includes a high-reliability potentiometer and a robust actuator motor, both of which are rebuilt to factory tolerances to eliminate common issues like sticking or erratic signals. The kit also incorporates a modernized wiring harness with reinforced connectors, reducing the risk of corrosion or loose connections that could disrupt engine management functions. Whether restoring a classic S-Class to its original glory or upgrading an existing vehicle for improved drivability, this throttle body rebuild ensures a reliable, long-lasting solution that adheres to Mercedes-Benz s high standards of engineering precision. Ideal for both professional mechanics and enthusiasts, this component is a critical upgrade for anyone seeking to revive the performance and refinement of the M117 s legendary V8 powerplant.

### **Pros and Cons of Buying a Rebuilt 1992 1995 Mercedes-Benz S500/S420 with a Throttle Body (Part Number 1418925)**

#### **Pros**

1. **Reliability After Rebuild** A properly rebuilt engine (especially with a fresh throttle body) can restore performance and longevity. The 1992 1995 S500/S420 (M117 engine) is a robust V8, and a rebuild ensures critical components like the throttle body, camshafts, and bearings are in good condition.

2. **Improved Performance** A new throttle body (1418925) can enhance throttle response, fuel efficiency, and overall drivability. The M117 engine is known for its smooth power delivery, and a fresh throttle body helps maintain that characteristic.

3. **Cost-Effective Alternative to Buying New** Rebuilding an existing S500/S420 is often cheaper than purchasing a used or new luxury sedan with similar power. The M117 engine is durable, and with proper maintenance, it can last well beyond 200,000 miles.

4. **Classic Mercedes-Benz Appeal** The S500/S420 is a sought-after classic, especially in well-maintained condition. A rebuilt example with updated components can be a great investment for enthusiasts who appreciate Mercedes luxury and engineering.

5. **Compatibility with Aftermarket Upgrades** The throttle body (1418925) is a common part, meaning it s easy to source replacements or modifications if needed. The M117 platform also supports various performance upgrades (e.g., exhaust, intake, or ECU tuning).

6. **Lower Running Costs (Compared to Modern Luxury Cars)** While maintenance can be expensive, the M117 engine is simpler than modern turbocharged units, meaning fewer high-cost repairs over time.

7. **Potential for High Resale Value** Well-documented, restored S500/S420 models hold value, especially in collector markets. A rebuilt example with a fresh throttle body can appeal to buyers looking for a reliable classic.

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#### **Cons**

1. **High Initial Cost of Rebuild** A professional rebuild is expensive, often ranging from $8,000 to $15,000 depending on labor, parts, and engine condition. This can be prohibitive for casual buyers.

2. **Maintenance Requirements** The M117 engine, while robust, requires regular upkeep (valve adjustments, timing chain inspection, fuel system cleaning). Neglecting maintenance can lead to costly failures.

3. **Parts Availability and Cost** While common, some original parts (especially for older models) can be expensive. Rebuilt or aftermarket alternatives may not always match OEM quality.

4. **Fuel and Insurance Costs** Modern fuel efficiency standards mean the S500/S420 will consume more gas than a modern sedan. Insurance premiums may also be higher due to the car s value and performance potential.

5. **Depreciation Risk** Classic Mercedes-Benz models can depreciate if not well-maintained. A rebuilt example without proper documentation may not retain value as effectively as a fully restored or rare model.

6. **Potential for Hidden Issues** Even with a rebuild, pre-existing problems (e.g., warped heads, rod bearing wear, or electrical gremlins) can resurface. Thorough pre-purchase inspection is critical.

7. **Driving Experience Differences** Modern luxury cars offer superior comfort, tech, and safety features. The S500/S420, while luxurious, lacks modern amenities like advanced driver aids, infotainment, or hybrid efficiency.

8. **Throttle Body-Specific Concerns** The 1418925 throttle body, while improved, may still require periodic cleaning or calibration. Carbon buildup or sensor issues can affect performance over time.

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### **Conclusion**

Buying a rebuilt 1992 1995 Mercedes-Benz S500/S420 with a fresh throttle body (1418925) is a compelling choice for enthusiasts who prioritize driving pleasure, classic luxury, and long-term reliability. The M117 engine is a proven performer, and a rebuild can extend its life while improving drivability. However, the upfront cost, maintenance demands, and lack of modern conveniences make it less ideal for casual drivers or those seeking a practical daily vehicle.

- **Mercedes-Benz enthusiasts** who appreciate the brand s heritage and are willing to invest in maintenance.

- **Drivers who prioritize performance and driving dynamics** over fuel efficiency or cutting-edge tech.

- **Those with mechanical knowledge or access to a trusted mechanic** to manage ongoing care.

For buyers who want a more modern, low-maintenance luxury experience, a contemporary Mercedes (or another brand) may be a better fit. However, for the right owner, a rebuilt S500/S420 remains a rewarding and enjoyable classic.

### **Recommendation**

1. **Verify the rebuild quality** Ensure the engine was professionally overhauled with high-quality parts (e.g., new bearings, seals, and timing components).

2. **Check for documentation** Request service records, rebuild logs, and proof of part authenticity (especially for the throttle body).

3. **Budget for maintenance** Allocate funds for regular valve adjustments, fuel system cleaning, and potential electrical system updates.

4. **Consider insurance** Shop around for specialized classic car insurance to protect the investment.

5. **Test drive thoroughly** Pay attention to throttle response, smoothness, and any unusual noises that could indicate lingering issues.

Ultimately, a rebuilt S500/S420 with a fresh throttle body can be a fantastic project car or a reliable classic if you re prepared for the responsibilities that come with it.

Details:

Actual item pictured. Wires are crumbling.

part #: 1418925 prices

• $249.99-$499.99

specifications throobo:

• for models: S500, S420
• for makes: Mercedes
• for years: 1992-1995
• mpn: 1418925
• location: 8-3-1
• type: Throttle Body
• color: Silver
• connector type: Plug
• country of origin: Germany
• fuel type: Gasoline

offer throobo:

• started: May 4, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

general throobo:

• Car Truck Parts Accessories > Air Fuel Delivery > Throttle Bodies
• condition: For parts or not working

shipping throobo:

• type: Fixed
• class: Standard
• cost: $29.99
• service: Standard
• transit: 3-7 Days

returns throobo:

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

seller throobo:

• rating: 99.9%
• # reviews: 2537
• city: Kannapolis, North Carolina

payments throobo:

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

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