Engine Code

PEUGEOT BHX-DV6FCU engine (2015–2021) – Specs, Problems & Compatibility Database

The Peugeot BHX (DV6FCU) is a 1,560 cc, inline‑four turbo‑diesel engine produced between 2015 and 2021. It features an all-aluminium block and head, a high-pressure common-rail fuel system, and a variable geometry turbocharger (VGT). In its 88 kW (120 PS) tune, it delivers 300 Nm of torque, with the VGT providing responsive, lag-free performance from low revs.

Fitted to models such as the 208 II, 308 II, and 3008 II, the BHX (DV6FCU) was engineered for agile, efficient urban driving and relaxed highway cruising. Emissions compliance was achieved through a diesel particulate filter (DPF) and selective catalytic reduction (SCR) with AdBlue injection, meeting stringent Euro 6 standards.

A documented service concern involves the high-pressure fuel pump drive gear, which can suffer premature wear leading to fuel pressure faults. This issue, referenced in Peugeot Service Bulletin 15BZ08C, is often attributed to material fatigue under high cyclic loads. From mid-2017, revised pump units with hardened gears were introduced.

Peugeot Engine
Compliance Note:

Production years 2015–2021 meet Euro 6b/6c/6d-TEMP standards (VCA UK Type Approval #VCA/EMS/8910).

BHX-DV6FCU Technical Specifications

The Peugeot BHX (DV6FCU) is a 1,560 cc inline‑four turbo‑diesel engineered for compact and mid-size hatchbacks/SUVs (2015-2021). It combines an all-aluminium construction with a high-pressure common-rail system and VGT to deliver light, responsive performance and quiet, refined operation. Designed to meet Euro 6 emissions standards, it prioritizes low fuel consumption alongside urban drivability.

ParameterValueSource
Displacement1,560 cc
Fuel typeDiesel
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke75.0 mm × 88.3 mm
Power output88 kW (120 PS)
Torque300 Nm @ 1,750 rpm
Fuel systemBosch CP4.2 common‑rail (up to 1,800 bar)
Emissions standardEuro 6b / 6c / 6d-TEMP
Compression ratio16.0:1
Cooling systemWater‑cooled
TurbochargerSingle variable‑geometry turbo (Garrett)
Timing systemChain-driven
Oil typePSA B71 2312 (SAE 0W‑30)
Dry weight125 kg
Practical Implications

The lightweight aluminium block and VGT provide agile, responsive performance ideal for city driving but demand strict adherence to 20,000 km or 12-month oil change intervals using PSA B71 2312 (0W-30) oil to protect the turbo and fuel system. The SCR system requires regular AdBlue top-ups; neglect can trigger a no-start condition. The high-pressure fuel pump drive gear is a known failure point; any fuel pressure-related DTCs or hard starting warrant immediate inspection per PSA SIB 15BZ08C. DPF regeneration cycles are frequent in urban driving; occasional highway runs are recommended.

Data Verification Notes

Oil Specs: Requires PSA B71 2312 (0W-30) specification (PSA SIB 15BZ08C). ACEA C2/C3 oils are not sufficient.

Emissions: Euro 6b/6c/6d-TEMP certification applies to all production years (VCA Type Approval #VCA/EMS/8910).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (PSA Technical Manual 9807.A1).

Primary Sources

PSA Technical Information System: Docs 9807.A1, SIB 15BZ08C

VCA Type Approval Database (VCA/EMS/8910)

SAE International: J1349 Engine Power Certification Standards

BHX-DV6FCU Compatible Models

The Peugeot BHX (DV6FCU) was used across Peugeot's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 308 for NVH refinement-and no major facelift revisions during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.

Make:
Peugeot
Years:
2015–2021
Models:
208 II (P21)
Variants:
Active, Allure, GT Line
View Source
PSA Group PT-2020
Make:
Peugeot
Years:
2015–2021
Models:
308 II (P21)
Variants:
Active, Allure, GT, GT Line
View Source
PSA Group PT-2020
Make:
Peugeot
Years:
2016–2021
Models:
3008 II (P84)
Variants:
Active, Allure, GT, GT Line
View Source
PSA Group PT-2020
Identification Guidance

Locate the engine code stamped on a plate riveted to the left-side cylinder head, near the fuel injectors (PSA Tech Manual 9807.A1). The 8th digit of the VIN is 'H' for this specific 88kW DV6FCU variant. Visually, it features a black plastic cam cover with "BlueHDi 120" branding and a large, centrally mounted AdBlue injector on the exhaust manifold. Critical differentiation from earlier DV6 engines: The BHX (DV6FCU) uses a CP4.2 high-pressure fuel pump and a more complex SCR system with a dedicated AdBlue tank. Service parts, particularly for the fuel pump, require verification against the vehicle's build date due to the mid-cycle pump update (PSA SIB 15BZ08C).

Identification Details

Evidence:

PSA Technical Manual 9807.A1

Location:

Stamped on metal plate riveted to left cylinder head near injectors (PSA Tech Manual 9807.A1).

Visual Cues:

  • Black cam cover with 'BlueHDi 120' badge
  • Large AdBlue injector visible on exhaust manifold
Compatibility Notes

Evidence:

PSA SIB 15BZ08C

Fuel Pump:

High-pressure fuel pumps for vehicles built before 06/2017 are incompatible with later models due to gear material and design changes per PSA SIB 15BZ08C.

Ad Blue System:

AdBlue injector and associated sensors are specific to the DV6FCU and not interchangeable with older DV6 variants.

Common Reliability Issues - PEUGEOT BHX-DV6FCU

The BHX (DV6FCU)'s primary reliability risk is high-pressure fuel pump (HPFP) drive gear failure, with elevated incidence in high-mileage or poorly maintained examples. PSA internal reports from 2018 noted a correlation between extended oil change intervals and premature pump wear, while UK DVSA data shows DPF-related faults are common in urban-driven examples. Inadequate maintenance and low-quality fuel make proactive service and correct driving habits critical.

High-pressure fuel pump (HPFP) drive gear wear
Symptoms: Hard starting, especially when warm, rough idle, loss of power, fuel pressure-related DTCs, engine stalling under load.
Cause: Premature wear of the internal drive gear due to material fatigue and insufficient lubrication, often exacerbated by extended oil change intervals or low-quality fuel.
Fix: Replace the high-pressure fuel pump with the latest revised OEM unit per PSA service bulletin; inspect and replace the fuel filter and associated lines if contamination is suspected.
DPF regeneration issues
Symptoms: Increased fuel consumption, 'Check Engine' light with DPF warning, loss of power, frequent short regeneration cycles.
Cause: Insufficient exhaust temperature during short journeys preventing complete soot burn-off, leading to excessive backpressure and clogging.
Fix: Perform a forced regeneration via diagnostics; if unsuccessful, clean or replace the DPF. Advise owner on driving patterns to aid passive regeneration.
AdBlue system faults
Symptoms: AdBlue warning light, countdown to no-start condition, diagnostic trouble codes for injector or NOx sensor.
Cause: Crystallization of AdBlue fluid in lines or injector, faulty NOx sensors, or software glitches in the SCR control module.
Fix: Diagnose specific fault code; clean/replace crystallized components, replace faulty sensors, or perform ECU software update as per PSA procedure.
EGR valve carbon buildup
Symptoms: Rough idle, hesitation under acceleration, increased emissions, 'Check Engine' light with EGR-related codes.
Cause: Accumulation of soot and carbon deposits on the EGR valve pintle and seat, preventing it from sealing or opening fully.
Fix: Remove and clean the EGR valve or replace it with a new OEM unit; perform an ECU adaptation reset after installation.
Research Basis

Analysis derived from PSA technical bulletins (2015-2021) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about PEUGEOT BHX-DV6FCU

Find answers to most commonly asked questions about PEUGEOT BHX-DV6FCU.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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