The 2017 Mercedes-benz Sprinter introduced a new engine design, prompting discussions among auto repair professionals. This analysis delves into the key changes and potential implications of this updated powertrain, offering insights for those working on these vehicles.
Compact Engine Design: Pros and Cons for Mechanics
The engine in the 2017 Sprinter appears more compact than its predecessor. While this might suggest easier access for some repairs, the actual impact on serviceability remains to be seen in practice. Working in tighter engine bays can sometimes present new challenges, even if the overall engine size is reduced.
Integrated Exhaust Treatment System: Efficiency vs. Accessibility
A significant change is the integration of exhaust treatment components directly into the engine block, rather than locating them further downstream in the exhaust system. This closer coupling is likely intended to improve the efficiency of the emission control systems. However, it also raises questions about accessibility for maintenance and repairs. Will these integrated components be more difficult to reach and service compared to previous designs?
Auxiliary Alternator Considerations for RV Upfits
For the recreational vehicle (RV) industry, the availability of an auxiliary alternator is often a critical factor. The 2017 Sprinter engine design doesn’t present an obvious mounting location for an auxiliary alternator. This could pose a challenge for RV builders and owners who rely on dual alternator setups to power onboard systems.
Internal Engine Chains: Durability and Service
The engine features dual internal engine chains, positioned deep within the engine and behind gears. While chain-driven systems can offer durability, their internal placement in this design might complicate servicing or replacement compared to belt-driven or more externally accessible chain systems.
Horsepower Increase and Potential Reliability Trade-offs
The 2017 Sprinter engine has the potential to deliver up to 195 horsepower, a notable increase. Achieving higher horsepower from a similar engine block size often involves pushing the engine harder, potentially through high-pressure turbocharging. While increased power is desirable, it’s crucial to consider whether this performance boost comes at the cost of long-term engine reliability. Historically, engines with significantly increased horsepower within the same platform can experience reduced lifespan or increased maintenance needs.
Lightweight Engine Construction and Cooling System Sensitivity
Weight reduction is evident in the engine’s construction, with the use of hollow areas in the main casting. While this contributes to overall vehicle efficiency, it may also increase the engine’s sensitivity to cooling system issues. Engines with lightweight designs can be more susceptible to warping if overheating occurs, even slightly. Maintaining a robust and efficient cooling system will be critical for the longevity of this engine.
Manufacturing Cost Efficiency and Parts Availability
The integrated engine and exhaust treatment system suggests a design aimed at streamlining vehicle assembly. This “modular” approach could reduce manufacturing costs for Mercedes-Benz. Furthermore, the widespread planned use of this engine might lead to improved spare parts availability in the long run, which would benefit owners and repair shops.
EPA Scrutiny and Real-World Performance
Following emissions compliance issues in the automotive industry, the Environmental Protection Agency (EPA) has reportedly scrutinized this Mercedes-Benz engine design to ensure adherence to emission standards. While meeting stringent environmental regulations is essential, it’s important to observe how these requirements impact real-world engine performance and longevity.
Conclusion: Cautious Optimism and Long-Term Evaluation
The 2017 Mercedes-Benz Sprinter engine incorporates several design changes that could offer benefits in terms of efficiency and power. However, as with any new engine design, a degree of caution and long-term evaluation is warranted. The impact of these changes on real-world reliability, serviceability, and maintenance costs will become clearer as these vehicles accumulate mileage and time in service. For now, the new engine presents both promising advancements and aspects that require careful monitoring and adaptation in repair practices.
