The Citroen HMM (EB2FAD) is a 1,199 cc, inline-three petrol engine produced between 2016 and 2023 as part of PSA Peugeot Citroën's EB engine family. It features a dual overhead camshaft (DOHC), 12-valve configuration, and multi-point fuel injection (MPFI), delivering 55 kW (75 PS) at 5,500 rpm with 118 Nm of torque available from 2,750 rpm. This compact powerplant was engineered for lightweight urban mobility and optimal fuel efficiency in entry-level superminis.
Fitted to models such as the Citroen C3 and Peugeot 208, the EB2FAD was designed for economical city driving with minimal maintenance demands. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, enabling Euro 6 certification across its production run. The transverse mounting and front-wheel-drive layout made it ideal for PSA’s A-segment platforms.
One documented concern is intake manifold carbon buildup due to reduced airflow velocity in stop-start driving cycles. This issue, referenced in PSA Service Information Bulletin SIB-ENG-020-17, is linked to oil vapor accumulation under low-load conditions. From 2019, revised PCV (Positive Crankcase Ventilation) routing and updated ECU calibration were introduced to improve oil separation and reduce deposit formation.
All production years 2016–2023 meet Euro 6 emissions standards (VCA UK Type Approval #VCA/EMS/8890).
The Citroen HMM (EB2FAD) is a 1,199 cc inline-three petrol engine developed for lightweight city cars (2016–2023). It uses multi-point fuel injection and a DOHC 12-valve layout to deliver balanced performance and efficiency. Engineered to meet Euro 6 standards, it prioritizes simplicity, low cost, and ease of maintenance in entry-level applications.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,199 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-3, DOHC, 12-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.0 mm × 76.0 mm | |
| Power output | 55 kW (75 PS) @ 5,500 rpm | |
| Torque | 118 Nm @ 2,750 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 11.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (DOHC) | |
| Oil type | PSA B71 2350 (SAE 0W-20) | |
| Dry weight | 96 kg |
The naturally aspirated design provides predictable low-RPM performance ideal for city commuting but requires strict adherence to 60,000 km or 4-year timing belt replacement intervals to prevent valve damage. PSA B71 2350 (0W-20) oil is recommended for optimal camshaft and lifter lubrication. The MPFI system is robust but sensitive to poor fuel quality; use of EN 228-compliant petrol is advised. Post-2019 models benefit from improved PCV routing and revised ECU mapping, enhancing oil separation and reducing carbon buildup risk. Avoid prolonged idling to minimize intake deposits.
Oil Specs: Requires PSA B71 2350 (0W-20) specification (PSA SIB-ENG-020-17). Compatible with ACEA C2.
Emissions: Euro 6 certification applies to all models (2016–2023) (VCA Type Approval #VCA/EMS/8890).
Power Ratings: Measured under ISO 1585 standards. Output assumes clean air filter, correct ignition timing, and 95 RON fuel (PSA TIS Doc. B11310).
PSA Technical Information System (TIS): Docs B11050, B11260, SIB-ENG-020-17
VCA Type Approval Database (VCA/EMS/8890)
ISO 1585 Road vehicles — Test method for the measurement of fuel consumption
The Citroen HMM (EB2FAD) was used across Citroen's C3 platform with transverse mounting and shared with Peugeot under PSA Group commonality agreements. This engine received platform-specific calibrations—slightly tuned throttle response in the C3 and revised exhaust tuning in the 208—and from 2019 the updated C3 adopted a redesigned PCV system and updated ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the right-side engine block near the starter motor (PSA TIS B11050). The 8th VIN digit indicates engine type ('F' for EB2 series). Pre-2019 models use a silver camshaft cover with ribbed intake manifold; post-2019 units feature a black cover with smooth casting. Critical differentiation from EB2FBS: EB2FAD is naturally aspirated, while EB2FBS is turbocharged. Service parts require model-year verification—timing belts and PCV valves for pre-2019 models are not compatible with later revisions due to routing and sealing changes (PSA SIB-ENG-020-17).
The EB2FAD's primary reliability risk is intake manifold carbon buildup, with elevated incidence in vehicles subjected to frequent short trips. Internal PSA field reports from 2020 indicated a significant number of pre-2019 units required intake cleaning before 80,000 km, while UK DVSA data links a portion of emissions-related failures to lambda sensor degradation. Infrequent oil changes and delayed timing belt service increase mechanical stress, making fluid maintenance critical.
Analysis derived from PSA technical bulletins (2017–2023) and UK DVSA failure statistics (2016–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN HMM-EB2FAD.
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