The Jeep 552 63 623 is a 1,368 cc, inline‑four turbocharged petrol engine produced between 2015 and 2020. It features Fiat’s MultiAir II electro‑hydraulic valve control and direct fuel injection, delivering outputs of 120 kW (163 PS) and 250 Nm of torque. The MultiAir system enables precise, cylinder‑by‑cylinder control of intake valve timing and lift, optimizing both performance and fuel efficiency.
Fitted primarily to the Renegade and Compass models, this engine wa…
Production years 2015–2017 meet Euro 6b standards; 2018–2020 models meet Euro 6d-TEMP compliance .
The Jeep 552 63 623 is a 1,368 cc inline‑four turbocharged petrol engine engineered for compact SUVs (2015–2020). It combines MultiAir II valve control with direct injection to deliver responsive performance and efficient operation. Designed to meet Euro 6b and Euro 6d-TEMP standards, it balances agility with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,368 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 72.0 mm × 84.0 mm | |
Power output | 120 kW (163 PS) | |
Torque | 250 Nm @ 1,850–4,000 rpm | |
Fuel system | Direct injection (200 bar), Bosch HDEV5 injectors | |
Emissions standard | Euro 6b (2015–2017); Euro 6d-TEMP (2018–2020) | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbocharger (IHI or Garrett) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The Jeep 552 63 623 was used across Jeep's Renegade and Compass platforms with transverse mounting and is not licensed to other manufacturers. This engine received platform-specific adaptations—reinforced mounts in the Compass for off-road durability—and from 2018 the updated MY19 models adopted revised emissions calibration for Euro 6d-TEMP, creating minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.
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The 552 63 623's primary reliability focus is the high-pressure fuel system, with documented cases of pump or injector wear under high-load, high-temperature conditions. Stellantis engineering reports indicate revisions in 2017 improved durability, while adherence to specified oil and fuel quality remains critical for long-term valve train and turbocharger health.
Analysis derived from Stellantis technical bulletins (2015-2020) and aggregated service data (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 552 63 623 offers good performance but has known issues with its high-pressure fuel system in early builds (pre-2017). Later revisions improved durability. Long-term reliability heavily depends on using the correct 5W-40 ACEA C3 oil, adhering to service intervals, and using high-quality fuel to prevent injector coking and turbo wear.
The most common issues are failures of the high-pressure fuel pump, coking of direct fuel injectors leading to misfires, and problems with the turbocharger wastegate or actuator causing boost faults. Oil consumption due to turbo seal or piston ring wear is also documented, often linked to maintenance practices.
This 1.4L turbo petrol engine was used in the Jeep Renegade (2015–2020) and the Jeep Compass (2017–2020). It was typically badged as the '1.4T' or '160hp' variant in these models and was not used in any other Stellantis brands like Fiat or Alfa Romeo for this specific engine code.
Yes, ECU remapping is common and can yield modest power gains. However, the stock turbocharger and fuel system have limits. Significant power increases require supporting modifications. Tuning should be performed cautiously, as it can exacerbate existing weaknesses in the fuel system and increase thermal stress on components.
Official combined fuel economy for the Renegade 1.4T is approximately 6.0 L/100km (47 mpg UK). Real-world figures vary significantly with driving style, typically ranging from 7.0–9.0 L/100km (31–40 mpg UK) in mixed driving. Aggressive driving or frequent short trips will reduce efficiency.
Yes. Like most modern engines, the 552 63 623 is an interference design. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain-driven system is generally robust with proper maintenance.
It requires a high-quality, low-ash, fully synthetic SAE 5W-40 oil meeting ACEA C3 and Fiat specification 9.55535-CR1. Using the correct oil is critical for protecting the turbocharger, aftertreatment system (catalyst, GPF if equipped), and the MultiAir valve train. Change intervals should not exceed 20,000 km or 12 months.
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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