Bosch/Delphi/Denso/Siemens QUATROS QS30183 injector drain diagnostic kit

Description Bosch/Delphi/Denso/Siemens QUATROS QS30183 injector drain diagnostic kit

Flow meter with adapter set for diagnosing diesel injectors of Common Rail systems.

Fuel backflow tester for simultaneous testing of up to 6 Bosch, Siemens, Denso, Delphi injectors.

Article: QS30183

Functional Purpose

Fuel backflow tester for simultaneous measurement of the volume of fuel returning from each injector on engines up to 6 cylinders.

Compatibility

24 adapters for Bosch, Siemens, Denso, Delphi injectors. Suitable for Common Rail (CR) systems and conventional diesel injectors.

Fast Diagnostics

In a few seconds of engine operation, it shows a faulty injector by an increased fuel level in the measuring flask.

Description QS30183

Flow meter with adapter set for Common Rail systems QS30183 is a professional diagnostic tool for workshops servicing diesel engines. This tester allows you to simultaneously measure the volume of fuel returned from each injector (up to 6 cylinders), which allows you to quickly identify a faulty, clogged, or damaged injector. The set includes 24 adapters for Bosch, Siemens, Denso, and Delphi injectors.

Diagnostics of injectors without this tester often leads to incorrect conclusions, replacement of properly functioning injectors, and significant costs. QS30183 completely solves this problem: connect the tester tubes to the injector return lines, start the engine for a few seconds – and the measuring flasks will show which injector is returning excess fuel. A difference of more than 10% between the flasks indicates a faulty injector.

Technical Specifications

⚠️ Important: The tester is intended for connection to the low-pressure return line only. DO NOT connect to the high-pressure line! Use safety glasses during operation.

Kit Contents

When to Use This Tester

• When diagnosing loss of power, increased fuel consumption, or uneven engine operation.

• To check injectors after replacement or repair.

• When searching for the cause of smoke or difficult starting of a diesel engine.

• For routine diagnostics of injectors on Common Rail engines.

Advantages of QS30183

Simultaneous Measurement

All 6 injectors are tested simultaneously in a few seconds — fast and visual diagnostics.

Versatility

24 adapters in the set ensure compatibility with injectors from all major manufacturers.

Easy to Use

Connection takes minutes — simply replace the injector return tubes with the tester tubes.

Frequently Asked Questions

Is the tester suitable for VAG 2.0 TDI engines?

Yes, the tester is compatible with Bosch and Siemens injectors used on VAG 2.0 TDI Common Rail engines.

What is the acceptable difference between the flasks?

A difference of more than 10% between the flasks indicates a potentially faulty injector with increased backflow.

Can it be used on V8 engines?

The tester is designed to test up to 6 injectors at a time. For V8, measurements must be made in two stages.

What is the warranty on the QS30183 tester?

The tool is guaranteed for 12 months against manufacturing defects under proper use.