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REMANUFACTURED INJECTORDiesel Fuel Injectors
OEM Tested
12-Month Warranty
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CD539E Injector Problems – Symptoms, Causes & Fixes

Engine: CD539E 1 compatible injectors From £160

Common Injector Failures on the CD539E

The CD539E 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 Bosch.

Vehicles fitted with the CD539E include models from Ford. 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 CD539E 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

CD539E Injector Replacement Cost

Parts (per injector)

£160–£160

Labour

£150–£400

Total (per injector)

£310–£560

Full replacement cost guide

Compatible Injectors for the CD539E1 found

35428758
35428758Bosch
£160.00

Most Common Injector Part Numbers for CD539E Engine

35428758
35428758Bosch
£160.007 vehicles

Vehicles Using the CD539E Engine

Ford S-MAXCD539E

Related Engine Codes

CVRA CYFA DRRA G6DG G8DA G8DB

Frequently Asked Questions

What are common injector problems on the CD539E engine?
The CD539E 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 CD539E engine?
A remanufactured injector for the CD539E engine typically costs £160–£160 per injector. Labour adds £150–£400 depending on accessibility. We found 1 compatible injectors for this engine.
Which vehicles use the CD539E engine?
The CD539E engine is found in vehicles from Ford. Common models include Ford S-MAX.
How do I test the injectors on a CD539E 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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Diagnostic Guides

Need a Replacement CD539E Injector?

We stock 1 tested replacement injectors for the CD539E engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All InjectorsReplacement Cost Guide Call 020 3355 6581