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Siemens VDO / Continental 5WS40000-Z Diesel Injector
Siemens VDO / ContinentalPart No: 5WS40000-Z
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The Siemens VDO / Continental 5WS40000-Z diesel injector is a remanufactured common-rail injector for PSA 2.0 HDi (RHY) engines. PSA 2.0 HDi (RHY) Remanufactured Common Rail Injector.
(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.
Dispatch within 24h. Free UK delivery.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.
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.
Why Buy From Us
Not sure this is the right injector? Call us on 020 3355 6581
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
PSA 2.0 HDi 8v (DW10TD / DW10ATED — 206, 306, Partner, Berlingo, Xsara) RHY
Common symptoms
- Hard starting, particularly when warm
- Uneven idle
- Loss of power with rail-pressure faults
- Excess smoke under acceleration
- Engine stalling at idle
Documented failure modes
- Injector back-leak beyond specification on high-mileage units
- Nozzle wear causing over-fuelling and smoke
- Fuel contamination damage on neglected systems
Diagnostic guidance
- This is an early common-rail platform — verify low-pressure supply and check for air ingress before condemning injectors
- Run a comparative leak-off test across all four injectors
- Use new sealing washers on every refit
Fitment note: RHY/RHZ 8-valve engines were fitted with Bosch or Siemens systems depending on build — the systems are not interchangeable. Confirm the etched part number before ordering.
Why this injector?
- Fits the RHY engine code used in the Citroen Berlingo and related diesel variants.
- Siemens VDO / Continental diesel injector — flow-tested and calibrated on common-rail equipment before despatch.
- Commonly specified when investigating rough idle, injector knock, smoke or poor fuel economy on RHY engines.
- 12-month warranty, free UK delivery and no core exchange required.
Siemens VDO 5WS40000-Z 2.0 HDi Common Rail Injector (Peugeot/Citroen RHY)
Siemens VDO / Continental 5WS40000-Z common-rail injector for the early PSA 2.0 HDi (RHY, DW10TD, 90hp). PSA OE 9636819380 / 1980F0. These early DW10 HDi injectors are generally fitted without classification coding — verify on the ECU. 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.
A leaking or out-of-calibration injector unbalances cylinder fuelling, felt as a shake at idle.
Excess back-leakage bleeds rail/line pressure during cranking, causing long or failed starts.
Out-of-range delivery or pressure deviation triggers a torque cut and limp home.
Poor atomisation or a dribbling nozzle over-fuels the cylinder.
Cylinder-specific injector, balance or fuel-metering fault codes are logged.
- InstallationEarly DW10 (RHY) HDi injectors generally require no classification coding; verify in Lexia/PP2000 before assuming coding is needed.
- 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.
What is injector 5WS40000-Z?+
5WS40000-Z is a Siemens VDO / Continental common rail piezo injector diesel injector for the PSA 2.0 HDi (RHY / DW10TD). It is supplied remanufactured, bench-tested and calibrated to OEM specification.
Which vehicles use 5WS40000-Z?+
It is fitted to the PSA 2.0 HDi (RHY / DW10TD) — including Citroen Berlingo 2.0 HDi 90 (RHY); Citroen Xantia 2.0 HDi 90 (RHY); Citroen C5 (I) 2.0 HDi 90 (RHY); Peugeot 206 2.0 HDi 90 (RHY). Confirm fitment by OE number and engine code.
What type of injector is 5WS40000-Z?+
It is a Siemens VDO / Continental Common Rail Piezo Injector. Always confirm the OEM markings on the injector body before fitting.
Does 5WS40000-Z need coding when fitted?+
Usually no — the early 2.0 HDi RHY (DW10TD) generally runs without injector classification coding. Verify the requirement on the ECU with Lexia/PP2000.
What are the symptoms of a failing 5WS40000-Z?+
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 5WS40000-Z 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.
Does the early 2.0 HDi RHY need injector coding?+
Generally no — the early DW10TD (RHY) is usually fitted without classification coding, unlike the later DW10BTED4. Always verify the requirement on the specific ECU before road test.
What are the PSA OE numbers for 5WS40000-Z?+
PSA references include 9636819380, 9652173780 and 1980F0; the Siemens VDO base number is 5WS40000 (the -Z and other suffixes interchange).
Popular alternatives & related injectors
- Siemens VDO / Continental5WS40000Z injector£80View 5WS40000Z
- Siemens VDO / ContinentalR5WS40000 injector£80View R5WS40000
- Siemens VDO / Continental9636819380 injector£80View 9636819380
- Siemens VDO / Continental9652173780 injector£80View 9652173780
- Siemens VDO / Continental9652173680 injector£80View 9652173680
- Siemens VDO / Continental9636680280 injector£80View 9636680280
- Siemens VDO / Continental1980F0 injector£80View 1980F0
- Siemens VDO / Continental00001980F0 injector£80View 00001980F0
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Remanufacturing Process
See how our injectors are rebuilt step-by-step in our 3D remanufacturing process video.
Vehicles Compatible With This Siemens VDO / Continental Injector
Compatible with Citroen, Peugeot, Fiat engines including RHY, RHW.
| Make | Model | Engine | Years |
|---|---|---|---|
| Citroen | Berlingo | 2.0 HDi 90 (RHY) | 1999–2011 |
| Citroen | C5 | 2.0 HDi (RHY) | 2001–2004 |
| Citroen | Xantia | 2.0 HDi 90 (RHY) | 1999–2003 |
| Citroen | Xsara | 2.0 HDi 90 (RHY) | 1999–2005 |
| Citroen | Xsara Picasso | 2.0 HDi (RHY) | 1999–2011 |
| Peugeot | 306 | 2.0 HDi 90 (RHY) | 1999–2002 |
| Peugeot | 307 | 2.0 HDi 90 (RHY) | 2002–2008 |
| Peugeot | 406 | 2.0 HDi 90 (RHY) | 1999–2004 |
| Peugeot | Partner | 2.0 HDi (RHY) | 2000–2008 |
| Fiat | Scudo | 2.0 JTD (RHY) | 2000–2006 |
Vehicles Using This Injector
Compatible Engines
The 5WS40000Z injector is compatible with the following engines:
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.
Product Description
The Siemens VDO / Continental 5WS40000-Z diesel injector is a remanufactured common-rail injector for PSA 2.0 HDi (RHY) engines.
PSA 2.0 HDi (RHY) Remanufactured Common Rail Injector.
Common engine code: RHY.
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
- Professional injector coding may be required after installation
- Torque to manufacturer specification
- Use calibrated test equipment for verification
- Check engine-specific torque values before installation
Recommended Injector Coding
No injector coding is required for the Siemens VDO / Continental 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
Common Symptoms of a Failed 5WS40000Z Injector
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.
5WS40000Z Price Statistics
Average Price
£80.00
inc. VAT
Price Range
£80–£80
inc. VAT
Stock
1/1
In Stock
Prices based on 1 listing for the 5WS40000Z injector. All prices include VAT.
Compatible Vehicles for 5WS40000Z
5WS40000Z 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.
Engine Codes Using 5WS40000Z
This injector is used in the following diesel engine codes. View engine-specific problems and diagnostics:
Cross Reference Numbers for 5WS40000Z
The following part numbers are cross-referenced to 5WS40000Z and may be used as direct replacements:
Related Fault Codes
If your vehicle has flagged any of these fault codes, the 5WS40000Z injector may need testing or replacement:
Injector Problem Guides
Experiencing issues with your diesel injector? These guides cover common injector problems and diagnosis:
Injector Testing Guides
Learn how to test and diagnose diesel injectors before ordering a replacement:
Other Injectors for This Engine
Frequently Asked Questions
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Related Pages
Siemens VDO / Continental PSA 2.0 HDi (RHY) — browse compatible engines, vehicles, and injectors
Compatible Engines
Compatible Vehicles
Recommended Injector
5WS40000-Z
Siemens VDO / Continental — View product page
Equivalent Part Numbers
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Cross References
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Learn More
Workshop Knowledge for This Injector
Common Symptoms
Workshop Guides
Every remanufactured injector includes a 12-month warranty and is bench-tested to OEM spec before dispatch.
Old-unit exchange applies — your core surcharge is refunded when we receive your old injector.
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