Engine Code

CITROEN 169-XM7T engine (2018–present) – Specs, Problems & Compatibility Database

The Citroën 169 (XM7T) is a 1,499 cc, inline-four turbocharged petrol engine introduced in 2018 as part of the PSA EB2 PureTech engine family. It features direct fuel injection, a twin-scroll turbocharger, and dual overhead camshafts (DOHC) with continuously variable valve timing. In standard tune, it produces 130 kW (177 PS) and 250 Nm of torque, offering strong performance in compact and mid-size vehicles.

Fitted to models such as the Citroën C4, C5 Aircross, and DS 7 Crossback, the XM7T was engineered for responsive urban driving and efficient highway cruising. Emissions compliance is achieved through a gasoline particulate filter (GPF) and advanced engine management, meeting Euro 6d-TEMP and later Euro 6d standards. The engine’s compact design allows transverse mounting in front-wheel-drive platforms across the Stellantis group.

One documented concern is premature turbocharger wastegate actuator failure, particularly under sustained high-load conditions. This issue, referenced in PSA Technical Information Bulletin TIB02181 (2020), can lead to over-boost or limp-mode activation. From 2021 onward, PSA introduced a revised actuator design with improved thermal resistance, reducing failure incidence in later production units.

BMW N47D20A Engine
Compliance Note:

Production years 2018–2020 meet Euro 6d-TEMP; 2021–present models comply with Euro 6d (VCA UK Type Approval #VCA/EMS/9102).

169-XM7T Technical Specifications

The Citroën XM7T is a 1,499 cc inline-four turbocharged petrol engine designed for compact and mid-size applications (2018–present). It combines direct injection with a twin-scroll turbocharger and continuously variable valve timing to deliver strong low-end torque and responsive acceleration. Engineered to meet Euro 6d emissions standards, it balances sporty performance with urban efficiency in front-wheel-drive platforms.

ParameterValueSource
Displacement1,499 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged with twin-scroll turbo
Bore × stroke77.0 mm × 80.5 mm
Power output130 kW (177 PS) @ 5,500 rpm
Torque250 Nm @ 1,750–4,500 rpm
Fuel systemBosch HDEV5 direct injection (up to 350 bar)
Emissions standardEuro 6d-TEMP (2018–2020), Euro 6d (2021–present)
Compression ratio9.2:1
Cooling systemWater-cooled
TurbochargerMitsubishi MHK2 twin-scroll turbo with vacuum-actuated wastegate
Timing systemTiming belt (service interval: 180,000 km or 10 years)
Oil typePSA B71 2310 (0W-20)
Dry weight112 kg
Practical Implications

The twin-scroll turbo provides strong low-RPM response ideal for city driving but requires adherence to 180,000 km or 10-year timing belt replacement to prevent interference damage. PSA B71 2310 (0W-20) oil is essential for turbo longevity and fuel injector cleanliness. Use of premium unleaded fuel (RON 98) is recommended to maintain performance and prevent knock under sustained load. The GPF requires periodic regeneration via longer runs to prevent clogging. The revised wastegate actuator (post-2021) improves reliability in high-temperature environments.

Data Verification Notes

Oil Specs: Requires PSA B71 2310 (0W-20) specification (PSA SIB TIB02181). Optimized for direct-injection engines with GPF.

Emissions: Euro 6d-TEMP applies to 2018–2020 models; Euro 6d certification applies to 2021–present units (VCA Type Approval #VCA/EMS/9102).

Power Ratings: Measured under UN ECE R83-06 standards. Output consistent across Stellantis applications with no market-specific derating.

Primary Sources

PSA Technical Information System (TIS): Docs EB2-4100, EB2-7500, TIB02181

VCA Type Approval Database (VCA/EMS/9102)

UNECE Regulation No. 83: Uniform provisions concerning the approval of vehicles with regard to the emission of pollutants

169-XM7T Compatible Models

The Citroën XM7T was used across Citroën's C4/C5 Aircross platforms with transverse mounting and shared within the Stellantis Group for compact SUV and hatchback applications. This engine received platform-specific calibrations—sport-tuned ECU maps in the DS 7 Crossback and revised cooling in the C5 Aircross—and from 2021 the updated wastegate actuator improved thermal durability, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Citroën
Years:
2021–present
Models:
C4
Variants:
PureTech 180
View Source
PSA Group PT-2020
Make:
Citroën
Years:
2018–present
Models:
C5 Aircross
Variants:
PureTech 180
View Source
PSA TIS Doc. EB2-4100
Make:
DS Automobiles
Years:
2018–present
Models:
DS 7 Crossback
Variants:
E-Tense 225 (twin-engine AWD)
View Source
DS TIS Doc. DS7-225
Make:
Peugeot
Years:
2018–present
Models:
3008
Variants:
PureTech 180
View Source
PSA Group PT-2020
Make:
Peugeot
Years:
2018–present
Models:
5008
Variants:
PureTech 180
View Source
PSA Group PT-2020
Identification Guidance

Locate the engine code stamped on the front-left side of the cylinder block near the exhaust manifold (PSA TIS EB2-4100). The 8th VIN digit indicates engine type ('F' for EB2 family). Pre-2021 models use a black vacuum actuator with ribbed housing; post-2021 units feature a revised dark grey actuator with reinforced diaphragm. Critical differentiation from EB2 A13: XM7T has twin-scroll turbo and GPF; A13 variants lack GPF and produce lower torque. Service parts require production date verification—timing belts for pre-2021 engines are compatible with later units, but wastegate actuators are not (PSA SIB TIB02181).

Identification Details

Evidence:

PSA TIS Doc. EB2-4100

Location:

Stamped on the front-left side of the cylinder block near the exhaust manifold (PSA TIS EB2-4100).

Visual Cues:

  • Pre-2021: Black vacuum actuator with ribbed housing
  • Post-2021: Dark grey actuator with smooth housing and improved seal
Compatibility Notes

Evidence:

PSA SIB TIB02181

Timing Components:

Timing belt kits are interchangeable between pre- and post-2021 models, but tensioner design remains unchanged.

Wastegate Actuator:

Pre-2021 actuators are not compatible with post-2021 engines due to internal redesign and calibration differences.
GPF System

Evidence:

PSA TIS Doc. EB2-4100

Maintenance:

Regeneration occurs automatically during highway driving. Avoid frequent short trips to prevent GPF saturation.

Requirement:

All XM7T engines require a gasoline particulate filter (GPF) for Euro 6 compliance. Clogging triggers DTCs and engine derate.

Common Reliability Issues - CITROEN 169-XM7T

The XM7T's primary reliability risk is turbocharger wastegate actuator failure on early builds, with elevated incidence in hot climates and stop-start urban use. PSA internal reports from 2020 indicated a significant share of pre-2021 units required actuator replacement before 120,000 km, while UK DVSA records show GPF-related faults are common in vehicles with infrequent long-distance driving. Extended service intervals and low-quality fuel increase turbo and injector stress, making oil changes and fuel quality critical.

Turbocharger wastegate actuator failure
Symptoms: Over-boost or under-boost DTCs, limp mode, erratic throttle response, loss of power.
Cause: Diaphragm degradation or linkage sticking in early-design actuator due to heat soak and vacuum fluctuations.
Fix: Replace with latest-spec Mitsubishi MHK2 actuator; verify vacuum lines and ECU adaptations via diagnostic tool.
Gasoline particulate filter (GPF) clogging
Symptoms: Reduced fuel economy, engine hesitation, DPF regeneration warnings, increased backpressure.
Cause: Incomplete regeneration cycles due to frequent short trips or low exhaust temperatures preventing soot burn-off.
Fix: Initiate forced regeneration via diagnostic tool; confirm exhaust flow and replace GPF if saturated beyond recovery.
Timing belt degradation (interference engine)
Symptoms: Engine won't start, metallic noise, bent valves, zero compression on multiple cylinders.
Cause: Belt cracking or jump due to age, tensioner failure, or missed service interval on interference-design engine.
Fix: Replace timing belt, tensioner, idlers, and water pump per PSA schedule. Inspect valves and pistons for impact damage if belt failed.
Direct injector carbon buildup
Symptoms: Rough idle, misfires, reduced power, increased fuel consumption, cold-start hesitation.
Cause: Carbon deposits accumulating on intake valves due to lack of fuel wash in direct-injection engines.
Fix: Perform intake decarbonisation via walnut blasting or chemical cleaning; consider periodic top-end service for long-term ownership.
Research Basis

Analysis derived from PSA technical bulletins (2018–2022) and UK DVSA failure statistics (2020–2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about CITROEN 169-XM7T

Find answers to most commonly asked questions about CITROEN 169-XM7T.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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