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REMANUFACTURED INJECTORDiesel Fuel Injectors
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12-Month Warranty
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TD4 Injector Problems – Symptoms, Causes & Fixes

Engine: TD4 3 compatible injectors From £100

Common Injector Failures on the TD4

The TD4 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 3 tested replacement injectors for this engine from Bosch.

Vehicles fitted with the TD4 include models from Land, Land Rover. 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 TD4 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

TD4 Injector Replacement Cost

Parts (per injector)

£100–£229

Labour

£150–£400

Total (per injector)

£250–£629

Full replacement cost guide

Compatible Injectors for the TD43 found

0445110130Bosch
£100.0004451121342
04451121342Bosch
£200.90234534645
234534645Bosch
£228.90

Most Common Injector Part Numbers for TD4 Engine

04451121342
04451121342Bosch
£200.9014 vehicles
234534645
234534645Bosch
£228.905 vehicles
0445110130Bosch
£100.001 vehicle

Related Cross Reference Numbers for TD4

0445110130098643509613537789573

Vehicles Using the TD4 Engine

Land Rover FreelanderTD4
Land ROVER RANGE ROVER EVOQUETD4
Land ROVER FREELANDERTD4

Frequently Asked Questions

What are common injector problems on the TD4 engine?
The TD4 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 TD4 engine?
A remanufactured injector for the TD4 engine typically costs £100–£229 per injector. Labour adds £150–£400 depending on accessibility. We found 3 compatible injectors for this engine.
Which vehicles use the TD4 engine?
The TD4 engine is found in vehicles from Land, Land Rover. Common models include Land ROVER FREELANDER, Land ROVER RANGE ROVER EVOQUE, Land Rover Freelander.
How do I test the injectors on a TD4 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 TD4 Injector?

We stock 3 tested replacement injectors for the TD4 engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All InjectorsReplacement Cost Guide Call 020 3355 6581