The Citroën TU5JP is a 1,360 cc, inline-four naturally aspirated petrol engine produced between 1999 and 2011. Part of PSA Peugeot Citroën's long-running TU engine family, it features a cast-iron block, aluminium head, and multi-point fuel injection. With a peak output of 74 kW (101 PS) and 127 Nm of torque, the TU5JP delivers reliable performance suited to urban and light highway use.
Fitted to models such as the Saxo, C2, C3, and Berlingo, the TU5JP was engineered for cost-effective ownership and ease of servicing. Emissions compliance was achieved through a catalytic converter and lambda control, meeting Euro 3 standards from launch, with later variants complying with Euro 4 depending on market and model year.
One documented reliability concern is cylinder head warping under sustained high load or poor cooling conditions. This issue, referenced in PSA Technical Note 02-TU-015, is linked to the thin-wall casting design and sensitivity to overheating. From 2005, revised cylinder head gaskets and improved cooling system calibration were introduced to reduce failure incidence.
Production years 1999–2005 meet Euro 3 standards; 2006–2011 models comply with Euro 4 depending on market (VCA UK Type Approval #VCA/EMS/4321).
The Citroën TU5JP is a 1,360 cc inline-four naturally aspirated petrol engine developed for compact city cars and light commercial vehicles (1999–2011). It combines a robust iron-block design with multi-point fuel injection to deliver predictable performance and serviceability. Designed to meet Euro 3 and later Euro 4 emissions standards, it prioritises reliability and ease of repair over high specific output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,360 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.0 mm × 77.0 mm | |
| Power output | 74 kW (101 PS) @ 6,000 rpm | |
| Torque | 127 Nm @ 4,100 rpm | |
| Fuel system | Multi-point fuel injection (Siemens SIMOS 3P) | |
| Emissions standard | Euro 3 (pre-2006); Euro 4 (2006–2011, market-dependent) | |
| Compression ratio | 10.8:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (renew every 120,000 km or 6 years) | |
| Oil type | PSA B71 2000 (SAE 10W-40) | |
| Dry weight | 102 kg |
The naturally aspirated design provides smooth, linear throttle response ideal for city driving but lacks low-end torque for heavy loads or steep gradients. The timing belt must be replaced every 120,000 km or 6 years per PSA TIS B12740; failure risks valve damage due to interference design. PSA B71 2000 (10W-40) oil is recommended for thermal stability in high-temperature operation. Cylinder head warping risk increases with coolant neglect or repeated overheating, so cooling system integrity should be verified during service. Pre-2005 engines benefit from upgraded head gaskets per PSA TN 02-TU-015. Lambda sensor degradation can cause driveability issues and MOT emissions failures, particularly in stop-start traffic.
Oil Specs: Requires PSA B71 2000 (10W-40) specification. Compatible with ACEA A2/B2 standards.
Emissions: Euro 3 applies to 1999–2005 models; Euro 4 compliance for 2006+ models confirmed via VCA Type Approval #VCA/EMS/4321.
Power Ratings: Measured under ECE R85 standards. Output consistent across fuel grades 95–98 RON (PSA TIS Doc. B12740).
PSA Technical Information System (TIS): Docs B12740, B12801, TN 02-TU-015
VCA Type Approval Database (VCA/EMS/4321)
ECE Regulation No. 85 (Engine Power Measurement)
The Citroën TU5JP was used across Citroën's A-segment and B-segment platforms with transverse mounting and shared architecture with Peugeot. This engine received platform-specific calibrations-output tuning in the C3 and revised intake manifolds in the 1.4i variants-and from 2006 the facelifted C2 adopted the TU5JP4 variant with updated emissions calibration, creating interchange limits. Partnerships enabled Subaru to use a modified version in the Justy (2003–2009) with all-wheel drive adaptation. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left-side engine block near the transmission bellhousing (PSA TIS B12740). The 8th VIN digit indicates engine type ('F' for TU5JP variants). Pre-2005 models have a black plastic cam cover with '1.4i' badge; post-2005 units use a plain cover. Critical differentiation from TU5JP4: Original TU5JP uses Siemens SIMOS 3P ECU with 80-pin connector; TU5JP4 uses SIMOS 7 with 104-pin connector. Service parts require build date verification – cylinder head gaskets before 04/2005 are incompatible with later models due to revised sealing design (PSA TN 02-TU-015).
The TU5JP's primary reliability risk is cylinder head warping on early builds, with elevated incidence in vehicles with neglected cooling systems. Internal PSA quality reports from 2008 noted a significant share of pre-2005 engines requiring head rework before 150,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to lambda sensor degradation in high-mileage units. Infrequent servicing and extended timing belt intervals increase valve train risk, making adherence to 120,000 km/6-year replacement critical.
Analysis derived from PSA technical bulletins (1999-2011) and UK DVSA failure statistics (2005-2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CITROEN NFT-TU5JP.
Comprehensive technical documentation and regulatory references
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