BOSCH 0438100080 Fuel Distributor Air Flow Meter 0438121082
fits model: R107, 280sl. make: Mercedes. year: 1978.
( Brand: Bosch ), ( Manufacturer Part Number: 0438100080 ), ( Interchange: 322-0438121082 0438101044 90 91 92 93 1990 1991 1992 1993 ), ( Type: Fuel Injector ), ( Ipn: 0438121082 0438101044 90 91 92 93 ), ( Oe/oem Part Number: 0438120032 ), ( Country Of Origin: Germany ), ( Fuel Type: Gasoline )
Review BOSCH Mercedes Fuel Distributor Air Flow Assy fits R107 280SL 1978
The **Bosch 0438100080 fuel distributor** is a meticulously engineered component designed specifically for the **Mercedes-Benz R107 280SL (1978 model)**, a classic sports car renowned for its sleek design, powerful performance, and timeless elegance. This high-performance fuel distributor is a critical part of the vehicle s carbureted fuel delivery system, ensuring precise metering of air and fuel to optimize engine efficiency, power output, and smooth operation. Crafted with Bosch s signature precision, this distributor features a robust **rotary impeller mechanism** that dynamically regulates airflow, compensating for variations in engine load, speed, and altitude to maintain optimal combustion. The unit incorporates a **vacuum-operated air bleed system**, which fine-tunes the air-fuel mixture by adjusting the airflow based on engine demand, thereby enhancing throttle response and reducing hesitation during acceleration. Built to withstand the demands of high-performance driving, the distributor is constructed from durable materials, including **high-grade aluminum for the housing** and **precision-machined internal components** to minimize wear and ensure long-term reliability. Its **sealed bearings and lubricated pivot points** reduce friction, allowing for smooth operation even under heavy loads, while the **integrated centrifugal advance mechanism** synchronizes ignition timing with engine speed for maximum power and efficiency. Whether restoring a vintage 280SL to its original glory or upgrading an existing system for improved performance, this Bosch distributor delivers the perfect balance of accuracy, durability, and performance. Its compatibility with the R107 s carbureted setup often paired with Weber or Solex carburetors makes it an ideal choice for enthusiasts seeking both authenticity and enhanced driving dynamics. With its robust construction and Bosch s reputation for quality, this fuel distributor stands as a dependable solution for maintaining or elevating the performance of one of Mercedes-Benz s most iconic roadsters.
### **Bosch 0438100080 Fuel Distributor (Airflow) for Mercedes-Benz R107 280SL (1978) Pros and Cons**
#### **Pros:**1. **OEM Compatibility** This is a genuine Bosch part designed specifically for the R107 280SL, ensuring proper fitment and functionality without modifications.
2. **Reliability** Bosch is a well-known manufacturer of high-quality automotive components, particularly for fuel distribution systems in older Mercedes engines.
3. **Performance Consistency** The airflow distributor helps maintain proper fuel mixture and engine performance, reducing issues like rough idling, stalling, or poor acceleration.
4. **Durability** Bosch parts are built to last, especially when compared to aftermarket knockoffs, which may wear out faster or fail prematurely.
5. **Ease of Installation** Since it is an OEM replacement, it should install similarly to the original, requiring minimal adjustments.
6. **Compatibility with Aftermarket Upgrades** If you plan to modify the engine (e.g., carburetor tuning, performance air intake), this distributor will integrate well with those changes.
7. **Warranty Coverage** Many Bosch distributors come with manufacturer warranties, providing some protection against defects.
#### **Cons:**1. **Cost** As an OEM or high-quality aftermarket part, it will be more expensive than generic or low-end alternatives, which may be a concern for budget-conscious buyers.
2. **Age of the Vehicle** The R107 280SL is a classic car, and while Bosch parts are reliable, older vehicles may still require additional maintenance (e.g., carburetor cleaning, vacuum leaks) that could affect performance regardless of the distributor.
3. **Availability** While Bosch parts are widely available, sourcing one for a specific model year (1978) may require checking specialty suppliers or online marketplaces, which could add time to the purchase process.
4. **Potential for Counterfeit Parts** If buying from untrusted sellers, there is a risk of receiving a fake or low-quality replica, which could perform poorly or fail quickly.
5. **Compatibility with Modified Engines** If the engine has been heavily modified (e.g., forced induction, significant carburetor changes), the stock distributor may not be ideal, and a performance-oriented distributor might be needed instead.
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### **Conclusion**
The **Bosch 0438100080 fuel distributor** is an excellent choice for restoring or maintaining the performance of a **Mercedes-Benz R107 280SL (1978)**. Its OEM compatibility, reliability, and durability make it a strong investment for owners who prioritize proper function and longevity. However, the higher cost and potential need for additional maintenance on an older vehicle should be considered.
If your primary goal is **restoring stock performance** or replacing a worn-out distributor, this part is highly recommended. If you plan **aggressive modifications**, you may need to pair it with other performance upgrades (e.g., a high-flow carburetor or performance distributor).
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### **Recommendation**
- **Buy from a reputable supplier** (e.g., **Mercury Marine, eBay verified sellers, or specialty classic car parts dealers**) to ensure authenticity.
- **Inspect the distributor** upon arrival for any signs of damage or wear before installation.
- **Pair with a carburetor service** (e.g., cleaning or rebuilding the Weber or Solex carburetor) for optimal results.
- **Consider a performance distributor** (e.g., **Bosch 0438100080 with airflow modifications or a Weber-specific distributor**) if you plan to tune the engine for better throttle response.
For most **stock or lightly modified R107 280SL owners**, this Bosch distributor is a **solid, reliable choice** that will significantly improve drivability and fuel efficiency.
Details:
Mercedes 1978 R107 280SE, Bosch Fuel Injection Distributor part and Air Flow Meter assembly, not tested. Shipping at $32.95 for the Continental 48 US.
part #: 0438100080 prices
- $86.45-$446.25
specifications carfuelinjector:
- for models: R107, 280sl
- for makes: Mercedes
- for years: 1978
- brand: Bosch
- mpn: 0438100080
- interchange: 322-0438121082 0438101044 90 91 92 93 1990 1991 1992 1993
- type: Fuel Injector
- ipn: 0438121082 0438101044 90 91 92 93
- oe/oem part number: 0438120032
- country of origin: Germany
- fuel type: Gasoline
shipping carfuelinjector:
- carrier: USPS
- service: USPS Ground Advantage
- transit: 5-11 Days
- cost: $32.95
- type: Fixed
- class: Standard
offer carfuelinjector:
- options: Ship-to-home
- started: April 5, 2026
- sold: 0
- availability: In Stock
- quantity: 1
- best offers: True
general carfuelinjector:
- Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
- condition: For parts or not working
seller carfuelinjector:
- city: Grand Island, New York
- # reviews: 32
- rating: 100.0%
payments carfuelinjector:
- other
- credit card: Mastercard
- wallet: Paypal
returns carfuelinjector:
- policy: No Returns
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