Vdo Diesel Injector Dacia Renault 1.5

The injector with OE code 166004305R is a component of the Common Rail injection system used on 1.5 dCi engines belonging to the K9K family, widely adopted by Renault, Dacia, Nissan and Opel. It is an electronically controlled injector, designed to ensure high precision in the quantity and timing of diesel injection into the cylinders, with the aim of improving combustion, reducing consumption and limiting harmful emissions.

Technical specifications

• Type: Common Rail diesel injector
• OEM manufacturer: Siemens VDO
• Technology: high-pressure solenoid with integrated electronic control
• Operating pressure: up to 1600 bar
• Multi-hole conical-atomizer tip
• High-strength steel body with thermal sealing gaskets

DIPA can carry out overhauls on these parts thanks to its experience and expertise.

Functionality

The 166004305R injector controls fuel injection into the combustion chamber with extreme precision. It can perform multiple pre-injections and post-injections in each engine cycle, contributing to cleaner and quieter combustion. The quantity and duration of the injection are electronically controlled by the engine control unit based on parameters such as temperature, pressure, load and engine speed.
The injector's efficiency is essential to maintain engine performance, meet Euro 5/6 limits and optimize fuel consumption.

Vehicle applications

Renault

• Clio
• Grand Scénic
• Megane
• Scénic
• Fluence
• Laguna
• Latitude

Dacia

• Duster
• Lodgy

Nissan

• Cube
• Juke
• Qashqai

DIPA recommends always checking the compatibility of the part before purchase.

The component can also be installed on some Mercedes applications with shared 1.5 diesel engines (e.g. A-Class W176 with Renault K9K engine).

Common faults

• Nozzle blockage due to impurities in the diesel or carbon deposits
• Internal seal leakage with excessive fuel return
• Solenoid wear causing erratic or incomplete injections
• Combustion noise due to irregular spray
• Difficulty starting when hot or cold due to rail pressure loss
• Increased fuel consumption and black smoke from incomplete diesel atomization

Final conclusions

The OE 166004305R injector is an essential component for the efficiency and reliability of 1.5 dCi engines. It is available as an original, aftermarket and remanufactured unit.
Replacement requires attention to injector coding in the ECU, where applicable, and the use of appropriate diagnostic equipment.
DIPA offers a wide range of parts: from original items to aftermarket parts selected among the best manufacturers on the market. Additionally, it supplies remanufactured components restored to like-new performance, providing cost savings on replacements and contributing to environmental protection through the circular economy. If the part you need is not available, no problem: DIPA can remanufacture your unit "on demand," returning full functionality and safety in a short time.