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

Engine: CDYA 62 compatible injectors From £100

Common Injector Failures on the CDYA

The CDYA 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 62 tested replacement injectors for this engine from Bosch.

Vehicles fitted with the CDYA include models from AUDI, Audi. 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 CDYA 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

CDYA Injector Replacement Cost

Parts (per injector)

£100–£150

Labour

£150–£400

Total (per injector)

£250–£550

Full replacement cost guide

Compatible Injectors for the CDYA62 found

43234538734
43234538734Bosch
£99.882439
2439Bosch
£99.882223
2223Bosch
£99.882550
2550Bosch
£99.882334
2334Bosch
£99.882450
2450Bosch
£99.882529
2529Bosch
£99.882336
2336Bosch
£99.882567
2567Bosch
£99.882442
2442Bosch
£99.882316
2316Bosch
£99.882446
2446Bosch
£99.88

Most Common Injector Part Numbers for CDYA Engine

43234538734
43234538734Bosch
£99.8820 vehicles
0867673265
0867673265Bosch
£100.0016 vehicles
043530632
043530632Bosch
£695.908 vehicles
0987654567
0987654567Bosch
£99.882 vehicles
2475
2475Bosch
£200.001 vehicle
2340
2340Bosch
£200.001 vehicle
2352
2352Bosch
£160.001 vehicle
2474
2474Bosch
£100.001 vehicle

Related Cross Reference Numbers for CDYA

038130073BA038130079F03G130073G03G130073GX0445115034044511505104451150520445115079

Vehicles Using the CDYA Engine

AUDI A6CDYA
Audi A6CDYA
AUDI A4CDYA
Audi A4CDYA
AUDI A1CDYA

Related Engine Codes

1T1 1T2 2000 2003 2004 8E2

Frequently Asked Questions

What are common injector problems on the CDYA engine?
The CDYA 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 CDYA engine?
A remanufactured injector for the CDYA engine typically costs £100–£150 per injector. Labour adds £150–£400 depending on accessibility. We found 62 compatible injectors for this engine.
Which vehicles use the CDYA engine?
The CDYA engine is found in vehicles from AUDI, Audi. Common models include AUDI A1, AUDI A4, AUDI A6, Audi A4, Audi A6.
How do I test the injectors on a CDYA 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 CDYA Injector?

We stock 62 tested replacement injectors for the CDYA engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All InjectorsReplacement Cost Guide Call 020 3355 6581