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REMANUFACTURED INJECTORDiesel Injectors & Fuel Pumps
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Y407 Injector Problems – Symptoms, Causes & Fixes

Engine: Y407 1 compatible injectors From £110

Common Injector Failures on the Y407

The Y407 engine uses high-pressure common rail diesel injection. Over time, injector nozzles wear, seals degrade, and internal components lose calibration. This leads to a range of drivability symptoms that worsen if left unaddressed. We stock 1 tested replacement injectors for this engine from Siemens VDO / Continental.

Vehicles fitted with the Y407 include models from various vehicles. If you are experiencing any of the symptoms below, your injectors may need testing or replacement.

Symptoms of Injector Failure

Black Smoke
White Smoke
Rough Idle
Hard Starting
Engine Knock

Related Fault Codes

P0201P0202P0203P0204P0263P0266P0269P0087P0089P0300

How to Test Y407 Injectors

Leak-off test: Connect clear hoses to the injector return lines and compare fuel volumes at idle. The injector returning the most fuel is likely worn.

Correction values: Use a scan tool to read injector correction (IMA) values. Readings beyond ±3 mg/stroke indicate wear.

Resistance check: Measure resistance across the injector connector pins with a multimeter. Compare to manufacturer specs.

Complete Testing Guide Leak-Off Test Guide

Y407 Injector Replacement Cost

Parts (per injector)

£110–£110

Labour

£150–£400

Total (per injector)

£260–£510

Full replacement cost guide

Compatible Injectors for the Y4071 found

A2C59511612
A2C59511612Siemens VDO / Continental
£110.00

Related Cross Reference Numbers for Y407

00001980L014697091805488

Frequently Asked Questions

What are common injector problems on the Y407 engine?
The Y407 engine commonly suffers from injector seal failure, nozzle wear causing poor spray patterns, and back-leak issues. Symptoms include rough idle, black or white exhaust smoke, hard starting, and increased fuel consumption. These issues typically appear after 100,000–150,000 miles.
How much does it cost to replace injectors on a Y407 engine?
A remanufactured injector for the Y407 engine typically costs £110–£110 per injector. Labour adds £150–£400 depending on accessibility. We found 1 compatible injectors for this engine.
Which vehicles use the Y407 engine?
The Y407 engine is found in vehicles from various manufacturers. Common models include various models.
How do I test the injectors on a Y407 engine?
Perform a leak-off test by connecting clear hoses to each injector return line and comparing fuel volumes at idle. You can also check injector correction values with a diagnostic scan tool or measure electrical resistance with a multimeter.

Injector Compatibility Checker

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Need a Replacement Y407 Injector?

We stock 1 tested replacement injectors for the Y407 engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All InjectorsReplacement Cost Guide Call 020 3355 6581