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Nozzle Ring Fault Signs

Typical symptoms of a worn or seized nozzle ring.

Limp mode / P0299 — underboost from blocked vanes
VGT position fault — vane ring seized or sticking
Erratic boost pressure — vanes not moving freely
Slow turbo spool — carbon build-up on vane ring
Inconsistent throttle — degraded vane geometry
Black smoke under load — vane flow mismatch
Full symptom guide

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Send your vehicle reg, engine code, and OE number — we'll match it.

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Can't find your turbo? Large & growing stock — new part numbers added daily. Call, WhatsApp or email us with your engine code.

Turbo Nozzle Rings (VGT / VTG)

● Official Melett Distributor

Turbo Nozzle Rings (VGT / VTG) Ireland & EU – OE Replacement Vane Rings

Restore smooth vane control in VGT and VTG turbocharger systems with OE-fit replacement nozzle rings. Match by part number, OE reference, engine code or turbo model. Covering Ford Transit, Toyota Landcruiser, Skoda Superb, VW Passat and more. Send your engine code or OE reference and we confirm fitment before you order.

OE-fitGeometry matched
12moWarranty
Same dayDispatch (ROI)
FreeROI shipping
Stocked brands: Melett Generic OE-fit
OE-fit geometryVane ring matched to turbo
Match by OE numberEngine code verified
12-month warrantyUnlimited mileage
Free ROI shippingSame-day dispatch
Official Melett Distributor Genuine OE-quality nozzle rings, not copies
Restore Boost Control Correct vane geometry for stable boost
Free Next-Day ROI Delivery Same-day dispatch on stocked items
Expert Fitment Support OE number & engine code matching

Nozzle Rings by Vehicle Application

Signs of a Worn or Seized Nozzle Ring

A sticking or distorted nozzle ring affects vane movement and disrupts boost regulation — often triggering limp mode or VGT fault codes before total failure occurs.

Critical
Limp Mode / P0299 Underboost
Seized vanes prevent correct boost build-up. ECU detects underboost and defaults to limp mode. Confirm VGT fault codes before replacing turbo.
Critical
VGT Position Fault Codes
A stuck nozzle ring causes the actuator to report incorrect vane position, triggering VGT or boost regulation fault codes. Inspect for carbon build-up first.
Warning
Erratic or Surging Boost
Vanes sticking intermittently cause the ECU to lose boost regulation, resulting in surging or inconsistent power delivery, especially at part throttle.
Warning
Slow Turbo Spool
Carbon deposits on the nozzle ring restrict vane travel. The turbo spools slowly or late in the RPM range. Often confused with a worn turbine wheel.
Monitor
Inconsistent Throttle Response
Degraded vane geometry delivers uneven exhaust gas flow to the turbine, causing variable throttle response and reduced engine efficiency under load.
Monitor
Black Smoke Under Load
Restricted vanes reduce air supply to the combustion chamber, causing rich running and visible black smoke under hard acceleration. DPF damage risk if left unresolved.

Always inspect the nozzle ring for carbon build-up before replacement — cleaning seized vanes can restore correct operation without replacement in many cases.

Nozzle Ring Compatibility Guide

Verified fitment data for current stock. Always confirm by OE number and turbo reference before ordering.

Model Engine Code Year OE Numbers Melett Ref Brand
Transit V363 2.0 EcoBlue BKFA / BKFB / BKRA / BKRB 2016–on GK3Q-6K682-AA/AB/AC/AD 1102-414-830 Melett
Transit V363 2.2 TDCI BLFA / BLFB / BLHA / BLRA / BLRB 2014–2019 GK3Q6K682AA/AB/AC/AD 1102-414-830 Melett
Transit V363 2.0 EcoBlue YMFA / YMFB / YMFS / YMF6 2019–on 2011904 / 2323637 1102-414-830 Melett
Transit V363 2.0 EcoBlue YMHA / YMR6 / YMRA 2020–on 2023081 / 2179947 1102-414-830 Melett
Transit V363 2.0 EcoBlue YNFA / YNFB / YNFS / YNF6 2022–on 2023081 1102-414-830 Melett

Not in the list? We may still have your ring.

Send your engine code or turbo OE number — we confirm availability before you order.

Representative fitment data shown. Always verify by ring part number, OE turbo reference and engine code before ordering.

Frequently Asked Questions

Everything you need to know about replacement turbo nozzle rings.

1 What is a turbo nozzle ring?

A nozzle ring (also called a vane ring) is a component in variable-geometry turbochargers (VGT/VTG) that directs exhaust gas flow onto the turbine wheel through a ring of adjustable vanes. Correct nozzle ring function supports stable boost regulation, consistent drivability, and reliable turbo response across the RPM range.

Common symptoms include limp mode or underboost fault P0299, erratic or surging boost pressure, slow turbo spool, inconsistent throttle response, and actuator or VGT position fault codes. Carbon build-up on the nozzle ring is a common cause and can sometimes be cleaned; severe wear or distortion requires replacement.

If the vanes are seized due to carbon build-up but the ring is otherwise undamaged, professional cleaning can restore correct vane movement. If the ring is distorted, cracked, worn beyond spec, or corroded, replacement is required. Always inspect before ordering a replacement.

Match by OE part number, turbo model number stamped on the turbo housing, and engine code. Send us your VIN, engine code, or turbo OE number and we will confirm the correct nozzle ring before you order at no charge.

In many cases yes — if the turbo housing, bearings, and shaft are in good condition, replacing the nozzle ring can restore correct vane function at a fraction of the cost of a full turbo replacement. Professional assessment of the turbo condition is recommended before ordering.

All nozzle rings supplied by DOMAT carry a 12-month warranty with no mileage restriction. If a ring fails within the warranty period under normal use, we will replace or credit it. Contact us with your order details and a description of the fault.

Orders placed before our daily cut-off are dispatched same day. Republic of Ireland deliveries typically arrive next business day. Free shipping applies to all ROI orders. Northern Ireland and EU deliveries may vary — contact us for current lead times to your country.

Complete Your Turbo Repair

Parts commonly ordered alongside nozzle rings

Turbo Nozzle Rings Ireland — Why DOMAT Engineering?

What Does a Nozzle Ring Do?

The nozzle ring in a VGT or VTG turbocharger is the assembly that holds and guides the variable vanes. By adjusting vane angle, the ECU controls the velocity of exhaust gas hitting the turbine wheel, allowing boost pressure to be optimised across the full RPM range. When the nozzle ring wears, corrodes, or becomes seized with carbon, vane movement is restricted and the ECU loses the ability to regulate boost correctly.

OE-Fit Melett Nozzle Rings

As an official Melett distributor, DOMAT supplies genuine Melett nozzle rings for Ford Transit V363 (2.0 EcoBlue and 2.2 TDCI) and Toyota Landcruiser and Hi-Lux (3.0 D4D 1KD-FTV). Melett nozzle rings are precision-engineered to OE specification to support correct vane mechanism operation and restore reliable boost control.

Generic OE-Fit Nozzle Rings

For applications not covered by Melett, DOMAT stocks generic OE-fit nozzle rings. Current stock includes the 1635-970-0002 nozzle ring for Skoda Superb and VW Passat 1.6 TDI-CR (DCZA / DCXA engine codes), covering a wide range of OE references across this platform. All generic rings are supplied to OE dimensional specification.

Match by OE Number or Engine Code

Nozzle ring fitment is turbo-specific, not just vehicle-specific. The same vehicle model may use different turbo variants across production years, meaning the correct ring must be matched by OE reference or turbo model number. Send us your engine code, VIN, or the OE number stamped on your existing turbo and we confirm the correct ring before you order.

Nationwide Delivery Across Ireland — Ford, Toyota, VW and More

DOMAT supplies turbo nozzle rings throughout Ireland — Dublin, Cork, Limerick, Galway, Waterford, Kilkenny, Sligo, Drogheda, Dundalk, and all counties nationwide. Current stock covers Ford Transit V363 with 2.0 EcoBlue and 2.2 TDCI engines including BKFA, BKFB, BLFA, BLFB, YMFA and YNFA engine codes; Toyota Landcruiser and Hi-Lux with 1KD-FTV 3.0 D4D engine referencing 17201-30100 through 17201-0L042 OE numbers; and Skoda Superb and VW Passat 1.6 TDI-CR covering DCZA and DCXA engine codes with OE references including 04L253016F, 04L253020R, 16359700002 and related numbers. Free next-day delivery to the Republic of Ireland, with EU-wide shipping also available.

Free ROI Shipping All orders to the Republic of Ireland ship free. Same-day dispatch on in-stock items.
EU Delivery Available We ship across the EU. Contact us for current lead times and shipping rates to your country.
☎ Expert Support Call, WhatsApp or email us with your engine code and we confirm the correct nozzle ring before you order.
✓ Free VIN Check: Not sure if this fits your vehicle? Request a free VIN check and we'll verify fitment before you order.
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