9HT Diesel Injectors
Compatible with Citroen Berlingo, Citroen C3, Citroen C4, and 5 more
- OEM Tested & Calibrated
- 12-Month Warranty
- Free UK Delivery
Select the correct injector for your 9HT engine below
Fits Citroen Berlingo, Citroen C3, Citroen C4, Citroen Dispatch and more
Top injectors for 9HT
Compatible Injectors for 9HT
- OEM Tested
- 12-Month Warranty
- Free UK Delivery
Common problems solved by these injectors
About the 9HT engine
The 9HT is a 1.6l hdi common rail diesel engine. This engine uses Bosch diesel injectors.
How Diesel Injectors Are Remanufactured
Watch our 3D walkthrough of the diesel injector remanufacturing process and see how injectors are professionally restored for reliable service.
Vehicles Using 9HT Engine
| Vehicle | Engine | Years |
|---|---|---|
| Citroen Berlingo injector | 1.6 HDi | 2008–2018 |
| Citroen C3 injector | 1.6 HDi | 2009–2016 |
| Citroen C4 injector | 1.6 HDi | 2008–2014 |
| Citroen Dispatch injector | 1.6 HDi | 2007–2016 |
| Peugeot 207 injector | 1.6 HDi | 2006–2014 |
| Peugeot 308 injector | 1.6 HDi | 2007–2014 |
| Peugeot Expert injector | 1.6 HDi | 2007–2016 |
| Peugeot Partner injector | 1.6 HDi | 2008–2018 |
Common 9HT Injector Problems
Rough idle and engine vibration
Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
Excessive exhaust smoke
Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
Poor fuel economy
A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
Engine misfire under load
Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
Difficult cold starting
Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.
Loss of power
Gradual power loss across the rev range, particularly above 2500 RPM, can indicate injector flow rate degradation.
Increased diesel knock
Louder than normal combustion noise, especially at idle, can indicate incorrect injection timing due to worn injector internals.
9HT Technical Specifications
Displacement
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Power
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Torque
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Fuel System
Common Rail Direct Injection
The 9HT is a 1.6l hdi common rail diesel engine. This engine uses Bosch diesel injectors.
Engine Intelligence
PSA / Ford 1.6 HDi / TDCi (DV6 — Bosch build, 9HT/THX)
Documented failure modes
- Nozzle coking from EGR-heavy duty cycles (documented DV6 trait)
- Injector back-leak beyond specification
- Carbon build-up at the injector seat causing compression leaks
Diagnostic guidance
- Keep the fuel system scrupulously clean during work — DV6 rails are highly sensitive to debris
- Compare leak-off volumes across all four injectors to isolate the faulty unit
- Clean the injector seat and fit a new sealing washer on every refit
Fitment note: The DV6 1.6 was built with BOTH Bosch (9HT/THX) and Siemens/Continental (DV6C 9HP/9HR era) systems — they are not interchangeable. Always confirm the etched part number.
Related 9HT Engine Guides
Related Pages
Bosch 1.6L HDi — browse compatible engines, vehicles, and injectors