The Jeep EFL – Diesel (VM Motori) is a 2,987 cc, 60 — degree V6 turbo — diesel engine produced between 2014 and 2018 for the North American Grand Cherokee and Cherokee. It features a high — pressure common — rail fuel system, dual overhead camshafts (DOHC), and a variable geometry turbocharger (VGT) to deliver 177 kW (240 PS) and 550 Nm of torque, providing strong low — rpm pulling power for towing and off — road use.
Fitted exclusively to the WK2 Grand Cherokee and KL Cherokee, the E…
Production years 2014–2018 meet EPA Tier 3 Bin 125 and California LEV III ULEV125 standards (EPA Certificate of Conformity #AAL140011).
The Jeep EFL – Diesel (VM Motori) is a 2,987 cc 60-degree V6 turbo-diesel engineered for mid-size SUVs (2014-2018). It combines high-pressure common-rail injection with a variable-geometry turbocharger to deliver exceptional low-end torque and highway efficiency. Designed to meet stringent US EPA and California emissions standards, it balances towing capability with fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,987 cc | |
Fuel type | Diesel | |
Configuration | 60-degree V6, DOHC, 24-valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 177 kW (240 PS) @ 3,600 rpm | |
Torque | 550 Nm @ 1,800–2,800 rpm | |
Fuel system | Bosch CP4.2 common-rail (up to 2,000 bar) | |
Emissions standard | EPA Tier 3 Bin 125 / CA LEV III ULEV125 | |
Compression ratio | 16.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Honeywell) | |
Timing system | Chain-driven (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 254 kg |
The Jeep EFL – Diesel (VM Motori) was used exclusively in FCA US LLC's WK2 and KL platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts and a unique exhaust routing for the Grand Cherokee-and no facelift revisions occurred during its production run, ensuring parts interchangeability across all model years. All adaptations are documented in OEM technical bulletins.
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The EFL's primary reliability risk is related to its emissions aftertreatment system, specifically DEF injector or pump faults, with elevated incidence in vehicles subjected to very short trips or operated in extremely cold climates without regular use. FCA internal data indicated a notable service rate for DEF system warnings in early 2014-2015 builds, while NHTSA complaints frequently cite related power reduction events. Infrequent driving and sub-zero temperatures make adherence to fluid quality and software updates critical.
Analysis derived from FCA technical bulletins (2014-2018) and NHTSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The EFL offers strong performance and efficiency, but its complexity, particularly the DEF and EGR systems, can lead to expensive repairs if not meticulously maintained. Early models (2014-2015) had more DEF system issues. Long-term reliability heavily depends on using correct fluids (ULSD, API DEF, MS-12991 oil) and addressing software updates. With proper care, it can be robust.
The most frequent issues involve the emissions system: DEF injector/pump faults or crystallization, EGR cooler leaks, and turbo actuator failures. The high-pressure fuel pump (CP4.2) is also a known potential failure point. These are documented in FCA service bulletins and NHTSA owner complaints.
This 3.0L V6 diesel was offered in the North American market Jeep Grand Cherokee (WK2 generation, 2014-2018) and Jeep Cherokee (KL generation, 2014-2018). It was not available in the Wrangler or in markets outside North America during this period.
Yes, ECU tuning is available and can yield significant power and torque gains (often 30-50+ kW). However, this puts additional stress on the turbo, fuel system, and emissions components. Tuning may void warranties and can accelerate wear on the CP4.2 pump or EGR system, requiring careful consideration and potentially supporting modifications.
EPA ratings for the Grand Cherokee were around 21 mpg city / 28 mpg highway / 24 mpg combined. Real-world highway driving often achieves 28-32 mpg US, while mixed driving typically yields 24-27 mpg US. Towing or aggressive driving will reduce these figures significantly.
Yes. Like virtually all modern engines, the EFL is an interference design. If the timing chain were to fail (though rare), the pistons would collide with the open valves, causing catastrophic internal engine damage requiring a complete rebuild or replacement.
Jeep mandates a full synthetic 5W-40 oil meeting FCA specification MS-12991. Using the correct oil is critical for protecting the turbocharger, emissions systems (DPF), and ensuring proper lubrication under high load. Change intervals should not exceed 12,000 km or 12 months, whichever comes first.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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