Is the Delphi A6510704987 compatible with the Mercedes-Benz C-Class?

Yes. The Delphi A6510704987 is a direct replacement diesel injector for the Mercedes-Benz C-Class 2.1 CDI and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the Delphi A6510704987 require injector coding?

No injector coding is required for the Delphi A6510704987 on most applications. Always follow the manufacturer's fitting procedure.

Is the A6510704987 supplied tested?

Yes. Every Delphi A6510704987 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the A6510704987?

Yes. The Delphi A6510704987 includes a 12 months warranty as standard, with free UK delivery.

Is an exchange or core return required?

No core exchange is required for the Delphi A6510704987. The price shown is the full price — nothing further to pay or return.

What engines use the A6510704987 injector?

The A6510704987 injector is used in OM651, OM651DE22LA, OM651.930, OM651.911, OM651.924 engine codes.

What are symptoms of a failing A6510704987 injector?

Common symptoms of a failing A6510704987 injector include hard starting, rough idle, excessive black or white smoke, engine misfires, poor fuel economy, and loss of power under load. A professional leak-off test can confirm whether the injector needs replacing.

How much does it cost to replace the A6510704987 injector?

A remanufactured Delphi A6510704987 injector typically costs between £120 and £120. Labour costs vary by vehicle but usually add £100–£250 per injector. All our remanufactured injectors come with a 12-month warranty.

Delphi 28342997 OM651 remanufactured diesel injector with RemanufacturedInjector branded box

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Need Help Confirming Fitment?

Not sure this injector fits your vehicle? Check using your registration number before ordering.

Engine Code or Cross Reference

Delphi A6510704987 Diesel Injector

Name: Remanufactured Delphi Diesel Injector A6510704987
Brand: Delphi
SKU: A6510704987
Price: 120.00 GBP
Availability: InStock

DELPHI

Part No: A6510704987

·Trade & Garage Friendly

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In Stock — Ships within 24 hours

The Delphi A6510704987 diesel injector is a remanufactured common-rail injector for 2.1L CDI engines. Remanufactured Delphi 28272472DNR diesel injector for Mercedes-Benz 2.1 CDI OM651 engines.

£120inc. VAT

(per injector)

+ £20 refundable core deposit per injector — refunded when your old unit is returned within 30 days

All prices are shown in GBP (£). International customers are securely charged in GBP via Stripe.

Save 38% vs OEM price

Professionally remanufactured to OEM standards

Ordering a single injector is standard practice.

Need multiple injectors? Simply increase the quantity above.

Every order includes a 12-month workshop warranty, OEM bench-calibration before despatch.

Most 4-cylinder engines use 4 injectors — replace only what your diagnosis confirms.

In stockTested & calibrated12-month warranty

12-Month Warranty

Included on every remanufactured injector. UK-based support if you ever need it.

Tested Before Dispatch

Flow-tested and calibrated on OEM-grade rigs. Test report on file for every unit.

Free UK Delivery

Mainland tracked dispatch. Order before 2pm for same-working-day pick-up.

Trade buyers: VAT receipt included · Account terms on request · Trusted by UK garages & diesel specialists.

9 Compatible Engine Codes

Mercedes-Benz OEM Replacement

OEM Bench Tested

Why Buy From Us

OEM Bench Tested & Calibrated

12 Month Warranty

Free UK Delivery

UK Diesel Injector Specialists

Technical Support Available

Not sure this is the right injector? Call us on 020 3355 6581

Free UK Delivery Same-Day Dispatch

FREE UK Delivery

International Delivery — flat £50 per order

One injector or multiple injectors

Ships Worldwide

FREE UK Delivery

Flat £50 International Shipping

Royal Mail Tracked
DPD International
Secure Packaging
Tracking Number Included
12 Month Warranty

Need more later? We keep stock available for repeat orders.

Engine Intelligence

Mercedes 2.1 CDI (OM651 Delphi era — C-Class, E-Class, Sprinter, Vito) OM651

Common symptoms

Hard starting, especially cold
Rough idle, uneven running or vibration
Misfire and loss of power, limp mode in severe cases
White, black or blue smoke
Knocking / ticking from the injector area, fuel smell, higher consumption

Documented failure modes

Early Delphi piezo injector failures — widely documented on 2009–2011 OM651 engines, addressed by a manufacturer service campaign
Injector delivery drift with correction values out of range
Injector leakage allowing fuel dilution of the engine oil in advanced cases

Diagnostic guidance

Check injector correction values across all four cylinders — an outlier identifies the failing unit
On early (2009–2011) engines with running complaints, injector history matters: many were replaced under the manufacturer campaign — verify which units are fitted
Monitor the engine-oil level on suspected leaking injectors
Injector coding is required after fitting — follow the manufacturer procedure

Fault codes linked to this engine's injectors

P0087 P0093 P0201 P0202 P0203 P0204 P2146 P2149

Fitment note: OM651 injection changed technology over its life — early Delphi piezo units differ from the later Bosch solenoid type (OM651950-era); the two are NOT interchangeable and this guidance covers the Delphi era only. Always match the reference etched on the injector body.

Browse every diesel engine we cover →

Why this injector?

Mercedes-Benz 2.1 CDI (OM651)

Suited to the OM651 2.1 CDI platform used across Mercedes-Benz C-Class, E-Class, Vito, Sprinter and related models.
Bench-tested for flow, spray pattern and leak-off so ECU correction values stay within specification.
A typical replacement when diagnosing rough idle, smoke or EML-logged injector-range faults on OM651 engines.
Injector coding is usually required after fitting — plan time and equipment at the workshop.

Gold VerifiedVerified technical data

Bosch 0445110574 2.1 CDI Common Rail Injector (Mercedes C/E-Class, Sprinter, Vito OM651 — Bosch supplier)

AI Technical Summary

Bosch 0445110574 (Bosch 0445110573, exchange 0986435286, OE A6510703187) CRI2 common-rail injector for the Mercedes-Benz 2.1 CDI OM651 — the Bosch-supplier variant. The OM651 was factory-fitted with two injector suppliers; the Delphi-supplied OM651 injector is a separate authority (28342997). Not interchangeable — confirm the Bosch OE A6510703187 marking. Remanufactured, calibrated, 12-month warranty. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Nozzle coking / poor spray pattern; Water-in-fuel corrosion.

Common Symptoms

Rough idle / vibrationhigh

A leaking or out-of-calibration injector unbalances cylinder fuelling, felt as a shake at idle.

Hard startinghigh

Excess back-leakage bleeds rail/line pressure during cranking, causing long or failed starts.

Loss of power / limp modehigh

Out-of-range delivery or pressure deviation triggers a torque cut and limp home.

Black smokemedium

Poor atomisation or a dribbling nozzle over-fuels the cylinder.

Engine management lightmedium

Cylinder-specific injector, balance or fuel-metering fault codes are logged.

Workshop & Fitting Notes

InstallationCode each injector's calibration code to the correct cylinder with Mercedes Xentry on fitment before road test.
InstallationRenew the copper combustion washer and leak-off seals; torque the clamp/nut to manufacturer spec.
MisdiagnosisRead live back-leakage and per-cylinder contribution data to confirm the weak cylinder before removal.
TestingBench-test across delivery and back-leakage points and verify spray pattern before refit.
WarningConfirm fitment by OE number and engine code before ordering; injector sub-variants are not always interchangeable.

Frequently Asked Questions

What is injector 0445110574?+

0445110574 is a Bosch common rail solenoid injector (cri2) diesel injector for the Mercedes-Benz 2.1 CDI (OM651, Bosch supplier). It is supplied remanufactured, bench-tested and calibrated to OEM specification.

Which vehicles use 0445110574?+

It is fitted to the Mercedes-Benz 2.1 CDI (OM651, Bosch supplier) — including Mercedes-Benz C-Class (W204) 200/220 CDI (OM651, Bosch); Mercedes-Benz E-Class (W212) 200/220 CDI (OM651, Bosch); Mercedes-Benz GLK (X204) 200/220 CDI (OM651, Bosch); Mercedes-Benz Sprinter (906) 210/213/313/316 CDI (OM651, Bosch). Confirm fitment by OE number and engine code.

What type of injector is 0445110574?+

It is a Bosch Common Rail Solenoid Injector (CRI2). Always confirm the OEM markings on the injector body before fitting.

Does 0445110574 need coding when fitted?+

Yes — each OM651 injector has a calibration code that must be programmed to the correct cylinder with Mercedes Xentry on fitment.

What are the symptoms of a failing 0445110574?+

Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.

What causes these injectors to fail?+

Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.

Is a remanufactured 0445110574 as good as new?+

A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.

Should I replace one injector or the full set?+

Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.

Do you bench-test the injector before dispatch?+

Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.

Is delivery and warranty included?+

Yes — the price includes free UK delivery and a 12-month warranty.

Is the Mercedes OM651 a Bosch or Delphi injector?+

The OM651 2.1 CDI was factory-fitted with both. This 0445110574 is the Bosch-supplier injector (OE A6510703187); the Delphi-supplier injector is a separate part (e.g. A6510704987). They are not interchangeable — confirm the OEM marking before ordering.

Does the Mercedes OM651 injector need coding?+

Yes — each OM651 injector carries a calibration code that must be programmed to the correct cylinder with Mercedes Xentry on fitment.

Related Injectors

28342997

Related Engines

OM651 (Bosch A6510703187)

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Remanufacturing Process

Injector fully dismantled

Internal components cleaned and inspected

Worn parts replaced

Reassembled and calibrated

Tested before dispatch

See how our injectors are rebuilt step-by-step in our 3D remanufacturing process video.

Vehicles Compatible With This Delphi Injector

Compatible with Mercedes-Benz engines including OM651, OM651DE22LA, OM651.930, OM651.911, OM651.924 and 4 more.

Make	Model	Engine	Years
Mercedes-Benz	C-Class	2.1 CDI C200/C220/C250 (OM651)	2008–2018
Mercedes-Benz	E-Class	2.1 CDI E200/E220/E250 (OM651)	2009–2016
Mercedes-Benz	CLA	2.1 CDI CLA200/CLA220 (OM651)	2013–2018
Mercedes-Benz	GLA	2.1 CDI GLA200/GLA220 (OM651)	2014–2019
Mercedes-Benz	GLK	2.1 CDI GLK200/GLK220 (OM651)	2012–2015
Mercedes-Benz	Vito	2.1 CDI 114/116 (OM651)	2014–2021
Mercedes-Benz	V-Class	2.1 CDI V200/V220/V250 (OM651)	2014–2019
Mercedes-Benz	Sprinter	2.1 CDI 214/314/514 (OM651)	2014–2018
Mercedes-Benz	SLK	2.1 CDI SLK250 (OM651)	2012–2016

Vehicles Using This Injector

Mercedes-Benz C-Class injector Mercedes-Benz E-Class injector Mercedes-Benz CLA injector Mercedes-Benz GLA injector Mercedes-Benz GLK injector Mercedes-Benz Vito injector Mercedes-Benz V-Class injector Mercedes-Benz Sprinter injector Mercedes-Benz SLK injector

Compatible Engines

The A6510704987 injector is compatible with the following engines:

OM651–2.1L CDI OM651DE22LA–2.1L CDI OM651.930–2.1L CDI OM651.911–2.1L CDI OM651.924–2.1L CDI OM651.925–2.1L CDI 651.912–2.1L CDI 651.913–2.1L CDI 651.916–2.1L CDI

Also known as

This injector is sold and listed under the references below. Tap any number to copy it — every reference refers to this same product.

All references resolve to this canonical product page. Always confirm exact fitment before ordering.

Compatible Vehicles

This injector fits the following vehicles. Always confirm exact fitment by engine code or registration before ordering.

Mercedes-Benz C-Class 2.1 CDI

Mercedes-Benz CLA 2.1 CDI

Mercedes-Benz E-Class 2.1 CDI

Mercedes-Benz GLA 2.1 CDI

Mercedes-Benz GLK 2.1 CDI

Mercedes-Benz SLK 2.1 CDI

Mercedes-Benz Sprinter 2.1 CDI

Mercedes-Benz V-Class 2.1 CDI

Mercedes-Benz Vito 2.1 CDI

Product Description

The Delphi A6510704987 diesel injector is a remanufactured common-rail injector for 2.1L CDI engines.

Remanufactured Delphi 28272472DNR diesel injector for Mercedes-Benz 2.1 CDI OM651 engines.

Direct-fit replacement for C-Class, E-Class, CLA, GLA, GLK, Vito, V-Class, Sprinter and SLK applications.

Cross-references A6510704987, A6510702387, HRD351, 28272472.

OEM-tested and calibrated with full flow and leak-back verification.

Includes 12-month unlimited-mileage warranty.

Supplied as an exchange unit — return your old injector within 21 days..

Common engine code: OM651.

Commonly replaced when investigating rough idle, injector knock, excess smoke or poor fuel economy.

Each injector is tested to OEM standards with a 12-month warranty and free UK delivery.

Workshop Information

Installation Notes

Check injector coding after installation
Ensure fuel system is properly primed
Use calibrated test equipment for verification
Check engine-specific torque values before installation

Recommended Injector Coding

No injector coding is required for the Delphi unit on most applications — follow the manufacturer fitting procedure.

Replacement Advice

Always renew the copper washers / seals and bleed the fuel system before first start. Replace only the injectors your diagnosis confirms and torque fasteners to the manufacturer's published values.

Professional Installation

We recommend installation by a suitably equipped diesel specialist using calibrated test equipment to verify the fuel system after fitting.

Common Engines Using This Injector

OM651

Common Symptoms of a Failed A6510704987 Injector

Hard starting Rough idle Excessive smoke Poor fuel economy Engine misfires Loss of power under load

If your vehicle shows these symptoms, replacing the diesel injector may restore engine performance. A leak-off test can confirm the diagnosis.

Testing & Warranty

All remanufactured injectors are tested using OEM-grade diagnostic equipment to ensure fuel pressure and spray pattern meet manufacturer specifications.

OEM Test Bench Calibration

Flow-tested on Bosch EPS 200 series bench to verify fuel delivery rates at all operating pressures.

Leak-Off Testing

Each injector is tested for return flow to ensure no excess fuel is wasted back to the tank.

Solenoid Calibration

Electrical response time verified to ensure precise injection timing and quantity.

12-Month Warranty

Full replacement or refund covering manufacturing defects under normal use. No quibble.

IMA code includedProfessional injector coding may be required after installationUK-based support teamNo core exchange required

A6510704987 Price Statistics

Average Price

£120.00

inc. VAT

Price Range

£120–£120

inc. VAT

Stock

1/1

In Stock

Prices based on 1 listing for the A6510704987 injector. All prices include VAT.

Compatible Vehicles for A6510704987

A6510704987 is OE-fit on the vehicles below. Always confirm the engine code on your V5C and the OE marking on the failed unit before ordering — sister part numbers in this family can look identical but carry a different calibration map.