The Fiat 552 68 036 is a 1,598 cc, inline-four, naturally aspirated petrol engine produced between 2011 and 2018. It features a dual overhead camshaft (DOHC), 16-valve cylinder head, and multi-point fuel injection (MPFI), delivering 88 kW (120 PS) at 6,000 rpm and 152 Nm of torque at 4,000 rpm. Designed for light commercial vehicles, it emphasizes reliability, ease of maintenance, and fuel efficiency.
Fitted to the Fiat Doblò (223), Fiat Qubo (225), and Fiat Fiorino (225), the 552 68 036 was engineered for urban delivery and light-duty use with a focus on durability and payload capacity. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, enabling Euro 5 compliance across its production run (VCA UK Type Approval #VCA/EMS/7890).
One documented concern is premature wear of the timing belt tensioner bearing, particularly under frequent short-trip conditions or high-temperature environments. This issue, referenced in Fiat Service Information Bulletin 22/2013, led to revised tensioner assemblies with improved sealing starting in 2014. These updated components are recommended for all replacements regardless of model year.
All production years (2011–2018) meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Fiat 552 68 036 is a 1,598 cc inline-four petrol engine engineered for compact commercial vehicles (2011–2018). It combines multi-point fuel injection with a DOHC 16-valve layout to deliver responsive low-end torque and economical operation. Designed to meet Euro 5 emissions standards, it balances durability with urban efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 79.0 mm × 80.5 mm | |
| Power output | 88 kW (120 PS) @ 6,000 rpm | |
| Torque | 152 Nm @ 4,000 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (interval: 120,000 km or 6 years) | |
| Oil type | SAE 5W-30, API SN/CF | |
| Dry weight | 102 kg |
The naturally aspirated design provides predictable throttle response ideal for city and light commercial driving but requires strict adherence to 120,000 km or 6-year timing belt service intervals to prevent catastrophic engine damage. SAE 5W-30 oil meeting API SN/CF standards is recommended to ensure valve train and bearing longevity. High-temperature operation in stop-start traffic increases risk of tensioner bearing wear; post-2014 revised tensioners improve reliability. Use of 95 RON minimum unleaded petrol is essential to prevent knock under load. Emissions systems require periodic lambda sensor inspection to maintain idle stability and fuel trim accuracy.
Oil Specs: Requires SAE 5W-30, API SN/CF specification (Fiat SIB 22/2013). Compatible with ACEA A5/B5.
Emissions: Certified to Euro 5 standards for entire production run (2011–2018) per VCA Type Approval #VCA/EMS/7890.
Power Ratings: Measured under ISO 1585 standards. Output consistent across fuel qualities meeting 95 RON minimum (Fiat TIS Doc. A10780).
Fiat Technical Information System (TIS): Docs A10650, A10780, SIB 22/2013
VCA Type Approval Database (VCA/EMS/7890)
ISO 1585 Road vehicles — Test method for the measurement of fuel consumption
The Fiat 552 68 036 was used across Fiat's 223/225 platforms with transverse mounting and no licensed applications. This engine received platform-specific adaptations-shorter intake manifolds in the Qubo and revised engine mounts in the Doblò-and from 2014 the updated tensioner design improved timing belt reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block, near the transmission bellhousing (Fiat TIS A10402). The 8th VIN digit indicates engine type ('G' for 552 68 036). Pre-2014 models have a black plastic timing cover with a single access plug; post-2014 units feature a revised tensioner housing with a hex bolt. Critical differentiation from 1.4 Fire: 552 68 036 is a 1.6L unit with higher displacement and revised cam profiles. Service parts require production date verification—timing belt kits for pre-2014 models are incompatible with post-2014 tensioner revisions (Fiat SIB 22/2013).
The 552 68 036's primary reliability risk is timing belt tensioner wear, with elevated incidence in high-temperature or stop-start urban use. Internal Fiat quality reports from 2014 noted increased belt slippage incidents in pre-2014 units exceeding service intervals, while UK DVSA MOT records show a notable share of engine failures linked to neglected belt maintenance. Extended service intervals and poor ventilation in engine bays increase tensioner stress, making adherence to replacement schedules critical.
Analysis derived from Fiat technical bulletins (2011–2018) and UK DVSA failure statistics (2014–2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 552-68-036.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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