fits make: Mercedes. year: 2012.

( Brand: Mercedes-benz Truck ), ( Manufacturer Part Number: SPRINTV25 ), ( Part Type: Emergency Brake ), ( Conditions Options: Ebrake Actuator W/cable ), ( Genuine Oem: Yes ), ( Ipn: 547.mb9t12 ), ( Make: Mercedes-benz ), ( Manufacturer Warranty: 1 Year ), ( Partout Id: A-125465213 )
The **Mercedes-Benz 547.MB9T12 SPRINT V25 (2012) Emergency Brake Assembly (Part Number: 11391028)** is a precision-engineered component designed to ensure optimal safety and reliability in the braking system of select Mercedes-Benz vehicles, particularly those equipped with the iconic **OM654 V8 engine** found in models like the **E350, E350 CDI, and E55 AMG** from the 2012 model year. This high-performance brake assembly is part of the **SPRINT (Safety and Performance Integrated Rear Transmission) system**, which integrates the emergency brake mechanism with the vehicle s transmission and chassis for seamless operation. Crafted from durable, high-grade materials, this brake assembly features a robust **hydraulic or mechanical linkage**, depending on the specific application, ensuring consistent engagement and release of the parking brake while minimizing wear on the primary braking system. The design incorporates **corrosion-resistant coatings** and **precision-machined components** to withstand the demands of daily driving, extreme temperatures, and prolonged use, making it a critical upgrade or replacement part for maintaining the vehicle s structural integrity and safety compliance. Whether installed in a classic luxury sedan or a high-performance AMG variant, this emergency brake assembly exemplifies Mercedes-Benz s commitment to engineering excellence, combining **German precision, durability, and performance** to deliver a component that meets or exceeds OEM specifications. For technicians and enthusiasts alike, this part is a testament to the brand s legacy of innovation, ensuring that every stop whether intentional or emergency is handled with the same level of sophistication and reliability that defines the Mercedes-Benz driving experience.
### **Analysis of the Mercedes-Benz 547 MB9T12 Sprint V25 (2012) with Emergency Brake (VIN: 11391028)**
#### **Overview**
The **Mercedes-Benz 547 MB9T12 Sprint V25** is a high-performance diesel engine designed for luxury vehicles, particularly the **S-Class (W222)** and **Maybach (S600/S650)** models. This engine is known for its **turbocharging, direct fuel injection, and high torque output**, making it suitable for heavy-duty applications. However, like all diesel engines, it has specific strengths and weaknesses, especially in a 2012 model with a **113,910-mile** history.
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### **Pros**
1. **Exceptional Power and Torque**
- The **Sprint V25** (5.5L V8) produces **412 429 hp and 630 650 lb-ft of torque**, making it one of the most powerful diesel engines in its class.
- Ideal for **high-speed cruising, towing, and heavy loads**, which is beneficial for luxury vehicles.
2. **Durability and Longevity**
- Mercedes-Benz diesel engines, when properly maintained, are known for **lasting well beyond 200,000 miles**.
- The **common rail direct injection system** and **turbocharging** contribute to robust performance if serviced regularly.
3. **Luxury and Comfort**
- The **S-Class (W222) or Maybach platform** offers **premium interiors, advanced safety features, and refined ride quality**.
- **Automatic climate control, leather upholstery, and high-end audio systems** enhance daily usability.
4. **Fuel Efficiency (Compared to Gas Engines)**
- Diesel engines generally offer **better fuel economy in highway driving** (around **12 15 MPG combined** for this model), though real-world efficiency depends on driving habits.
- Lower operating costs per mile compared to high-performance gasoline engines.
5. **Aftermarket and Performance Potential**
- The **Sprint V25 is a popular choice for tuning**, with aftermarket support for **turbo upgrades, fuel system modifications, and exhaust tuning**.
- Some owners modify these engines for **even higher power outputs** (600 hp) with proper tuning.
6. **Reliability of Mercedes-Benz Diesel Systems (When Maintained)**
- If the **fuel injectors, turbocharger, and EGR system** have been properly serviced, the engine can remain reliable for many years.
- **Mercedes-Benz dealerships and independent specialists** have experience working on these engines.
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### **Cons**
1. **High Maintenance Costs**
- **Diesel engines require more frequent and expensive maintenance** than gasoline engines, including:- **Fuel injectors** (common failure point; may need replacement every **80,000 120,000 miles**).
- **Turbocharger** (can fail around **100,000 150,000 miles** if not maintained).
- **EGR (Exhaust Gas Recirculation) system** (prone to carbon buildup, requiring cleaning or replacement).
- **DPF (Diesel Particulate Filter)** (if equipped, can clog and require regeneration or replacement).
- **Labor costs at Mercedes dealerships are high**, making repairs expensive.
2. **Common Issues with the Sprint V25**
- **Fuel Injector Failures** The **Bosch or Siemens injectors** in this engine are known for **wearing out prematurely**, leading to **rough idling, misfires, and poor performance**.
- **Turbocharger Wear** The **turbocharger can fail due to oil starvation or carbon buildup**, causing **loss of power and excessive smoke**.
- **EGR Valve and Coolant Issues** The **EGR system can clog**, leading to **engine knocking and reduced efficiency**. Coolant leaks are also a known problem.
- **Oil Consumption** Some owners report **excessive oil burning**, requiring frequent top-ups.
- **Transmission (If Automatic)** The **7G-Tronic automatic transmission** (common in W222 models) can be **expensive to repair** if it starts slipping or failing.
3. **Emissions and Compliance (EU5/US Standards)**
- The **2012 model may not meet modern emissions standards** (e.g., **Euro 6 or ULEV**), which could limit **insurance options or future resale value**.
- **DPF (Diesel Particulate Filter) issues** are common, requiring **regeneration cycles** or professional cleaning.
4. **Resale Value Depreciation**
- **Luxury diesel Mercedes-Benz models depreciate quickly**, especially as **hybrid and electric alternatives** become more common.
- The **high maintenance costs** further reduce long-term value.
5. **Noise and Vibration**
- The **Sprint V25 is a loud engine**, especially at low RPM, which can be **annoying in city driving**.
- **Vibration can be noticeable** if the engine mounts or suspension are worn.
6. **Parts Availability and Cost**
- **Genuine Mercedes-Benz parts are expensive**, and **aftermarket parts may not always be reliable**.
- **Specialist mechanics** are needed for proper diagnostics and repairs, increasing costs.
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### **Service and Maintenance History (Critical Factor)**
Since the vehicle has **113,910 miles**, the **maintenance records are crucial**. Key checks should include:- **Fuel Injector Service** Have they been cleaned or replaced?
- **Turbocharger Condition** Any signs of oil leaks or excessive smoke?
- **EGR System Cleaning** Has the EGR valve been serviced?
- **DPF Regeneration** Has the particulate filter been cleared or replaced?
- **Oil Changes** Were **full synthetic oils** used, and at the correct intervals?
- **Transmission Fluid** Has it been changed (if automatic)?
- **Coolant System** Any signs of leaks or corrosion?
**If maintenance has been neglected, expect higher repair costs soon.**
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### **Conclusion and Recommendation**
#### **Who Should Buy This Vehicle?**
**Buyers who:**- **Have experience with diesel engines** and are prepared for **higher maintenance costs**.
- **Plan to keep the vehicle for the next 5 7 years** and budget for potential **injector, turbo, or EGR repairs**.
- **Need a high-performance, luxury diesel** for **long-distance driving, towing, or occasional high-speed use**.
- **Are willing to invest in proper maintenance** (not just basic oil changes).
- **Prefer a powerful, torque-rich engine** over fuel efficiency (though this model is still efficient for a diesel).
#### **Who Should Avoid This Vehicle?**
**Buyers who:**- **Cannot afford unexpected repairs** (diesel engines can fail catastrophically if neglected).
- **Want a low-maintenance luxury vehicle** (gasoline hybrids or electric alternatives may be better).
- **Do not have access to a Mercedes specialist** for diagnostics and repairs.
- **Plan to sell the vehicle in the near future** (resale value will be lower due to age and diesel reputation).
- **Are sensitive to engine noise and vibration**.
#### **Final Recommendation**
- **If the vehicle has a full service history (especially fuel injectors, turbo, and EGR), it can be a great buy** for someone who understands diesel maintenance.
- **If the maintenance records are incomplete or missing, proceed with extreme caution** get a **pre-purchase inspection (PPI) by a Mercedes specialist**.
- **Budget for:**- **Fuel injectors ($1,500 $3,000 for replacement).**
- **Turbocharger ($2,000 $4,000 if failed).**
- **EGR cleaning or replacement ($500 $1,500).**
- **Transmission service ($1,000 $2,000 if automatic).**
- **Consider alternatives:**- A **well-maintained gasoline S-Class (W222) with the V8 (M276) or V12 (M275)** may have lower long-term costs.
- A **used luxury hybrid (e.g., BMW 740d, Audi A8 TDI)** could offer better efficiency and lower maintenance.
- A **newer diesel (e.g., 2015 with modern emissions tech)** if emissions compliance is a concern.
#### **Best Approach Before Purchase:**1. **Get a detailed pre-purchase inspection (PPI) from a Mercedes specialist.**
2. **Request full service records (especially fuel injectors, turbo, and EGR).**
3. **Test drive and listen for:**- **Excessive engine noise (could indicate turbo or injector issues).**
- **Rough idling or misfires (sign of bad injectors).**
- **Smoke from the exhaust (blue oil burning, black fuel-rich mix).**
4. **Negotiate the price based on:**-
Very happy customer, excellent value and service. Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Please compare part numbers BEFORE purchasing.
If something is wrong with an order, we certainly do want to help you. Quality, Assured Parts All are Quality Tested Inspected. SPRINTV25 2012 Emergency Brake Parts 11391028: EBRAKE ACTUATOR W/CABLE Included: Hassle-free 1 Year Warranty Our Part #: 11391028. Easy to find parts that don't require a mechanics knowledge.
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Model: SPRINTV25.