Audi Turbocharger Complete Product Guide — 1.2T, 1.4T, 1.9 TDI, 2.0 TFSI, 2.0T, 3.0 TDI V6 In Stock | HHX PARTS

HHX PARTS Audi Turbocharger Range: OEM-Grade Replacement for Every Turbocharged Audi Model

Audi has been at the forefront of turbocharged passenger car technology for decades — from the pioneering quattro rally car of the 1980s, to the legendary 1.8T 20V engine that defined a generation of performance cars in the 1990s and 2000s, to today’s sophisticated EA888 2.0 TFSI e 3.0 TDI V6 engines powering everything from the A4 to the Q7.

As Audi vehicles age and accumulate mileage, turbocharger replacement becomes one of the most common high-value repairs in independent workshops worldwide. The Audi turbocharger aftermarket spans compact IHI units for 1.4T engines, Garrett GT1749V for 1.9 TDI variants, IHI RHF5 for the dominant 2.0 TFSI platform, KKK K04 for S3 and TT performance applications, and BorgWarner GTB2056VK for the Q7 3.0 V6 TDI.

At PEÇAS HHX, we supply OEM-grade replacement turbochargers for the full Audi range — covering every major engine family from the EA111 1.2T entry-level through to the V6 TDI top of the Audi SUV range.

Audi Engine Family and Turbocharger Overview

In-Stock Audi Turbocharger Products — Full Range

1.2T / 1.4T TSI — EA111 Compact Engines (A1, A3, Q3)

1.4L TSI — IHI RHF4 (A1, A3 8P/8V, Q3)

• RHF4 Turbocharger 9V205 / 04E145721B — For Audi A1 8X, A3 8P/8V, Q3 with 1.4L TSI engine (CAXA / CBFA / CTHA engine codes)

1.2T / 1.4T TSI — Compact IHI (A1, VW Polo, Golf)

• Turbocharger 04E145702H / 16389700000 — For Audi / VW / Skoda / Seat 1.2T and 1.4T TSI / TFSI engines — A1, Polo, Fabia, Ibiza platforms

1.9 TDI — Garrett GT1749V (A3 8L/8P, Golf, Passat)

• GT1749V Turbocharger 713673-5006S / 038253019D / 1121159 — For Audi A3 8L/8P, VW Golf, Passat, Ford, Seat, Skoda with 1.9 TDI engine 85 kW (115 HP) and 74 kW (100 HP) variants

2.0 TFSI EA888 Gen 1/2 — IHI RHF5 (A3 8P/8V, TT, GTI, Passat, Eos)

• RHF5 Turbocharger 9VA15 / 110173P006 / 06J145689G — For Audi A3 8P/8V, VW Jetta GTI, Passat, Eos with CBFA 2.0L Gas engine

2.0 TFSI EA888 Gen 3 — IHI RHF5 (A4, A5, A6, A7, Q5)

• RHF5 Turbocharger 06L145722C / 06L145722B / 06L145702Q — For Audi A4 B8/B9, A5 F5, A6 C7, A7, Q5 2.0 TFSI with engine codes CNCD / CNCE / CNCB / CYPB / CYNB / CYPA

2.0T Quattro / allroad — IHI RHF5 (Q5 8R, A4 B8, A5 8T)

• RHF5 Turbocharger A0007A0087 / 06H145703S / 06H145702R — For Audi Q5 8R, A4 B8, A5 8T, A6 C6 Quattro allroad 2.0T with CDNC / CDNB / CPMA engine codes

2.0 TFSI High Performance — KKK K04 (S3, TT 2.0T)

• K04 Turbocharger 53049700064 / 06F145702C — For Audi A3 S3 8P, TT 8J 2.0 TFSI high-performance variant (BHZ / BWJ engine code, 240 PS)

3.0 TDI V6 — BorgWarner GTB2056VK (Q7)

• GTB2056VK Turbocharger 059145873F / 783762-5002S / 783762-0002 — For Audi Q7 4L 3.0 TDI V6 engine (CCWA / CDYA engine codes) — 240/245 PS premium SUV variant

Audi Turbocharger Identification: The OEM Part Number System

Audi uses a highly specific OEM part numbering convention for turbochargers. Understanding it prevents the most common ordering mistakes:

• 06x145xxxxxx format — the standard Audi OEM part number. The first three characters identify the platform: 06H = A4/Q5 B8 platform; 06J = MQB Gen 1/2 platform; 06L = MQB Gen 3 platform; 04E = PQ25/MQB A0 compact platform; 059 = V6/V8 applications (Q7, A6, A8)
• Engine code suffix — the same platform number can have multiple engine code variants (e.g. CNCD, CNCE, CNCB all use 06L145722C but differ in output and emission calibration)
• IHI cross-references — Audi TFSI turbochargers sourced from IHI (Stone) carry both the Audi 06x part number and an IHI reference (e.g. 9VA15, A0007A0087). Both are valid references for the same unit.
• BorgWarner / KKK cross-references — the K04 (KKK) and GTB2056VK (BorgWarner) carry both the Audi OEM number and the turbo manufacturer’s own number (e.g. 53049700064 for K04, 783762-5002S for GTB2056VK)

Common Audi Turbocharger Failure Symptoms by Engine Family

2.0 TFSI (EA888) — RHF5 Specific Patterns

• Oil consumption and blue smoke — the EA888 Gen 1/2 (BPY, CAWB engine codes) has a well-documented tendency for piston ring wear that can mimic turbo seal failure; distinguish by checking for an oily film inside the intake pipe between the turbo and intercooler — oil here confirms turbo seal failure, not piston ring wear
• Whistling noise at boost — a high-pitched whistle under acceleration on 2.0 TFSI engines almost always indicates a boost leak rather than turbo failure; inspect all charge pipe clamps and the N75 boost control valve before condemning the turbo
• P0299 underboost code — the most common CEL associated with RHF5 wear on high-mileage A4/Q5; check the wastegate actuator rod for play before ordering a turbocharger — actuator failure is common and inexpensive to address

1.9 TDI (GT1749V) — Specific Patterns

• VNT vane sticking — the GT1749V uses a Variable Nozzle Turbine (VNT) mechanism that is highly susceptible to carbon fouling from EGR soot on high-mileage TDI engines. The symptom is characteristic surging power delivery — strong at low RPM then losing power mid-range. Clean the VNT mechanism before replacing the turbocharger; a stuck vane cleaned and freed often restores full performance without replacement.
• Oil starvation on N75 failure — the 1.9 TDI GT1749V shares boost control with the N75 solenoid valve; an N75 failure causes overboost followed by limp mode, which is often misdiagnosed as turbocharger failure

3.0 TDI V6 GTB2056VK (Q7) — Specific Patterns

• Oil leak at turbine housing — the V6 TDI places the turbocharger in a thermally demanding location on the Q7’s engine; oil feed line deterioration leading to restricted flow is the primary cause of GTB2056VK failures on high-mileage Q7s
• Power loss under sustained towing load — the Q7 is frequently used for towing; sustained high-load operation without adequate cool-down accelerates bearing wear on the GTB2056VK faster than standard driving

K04 (S3, TT High Performance) — Specific Patterns

• Oil consumption from bearing wear on modified engines — the K04 on S3 and TT 2.0 TFSI is a popular platform for software tuning; engines running above OEM boost pressure specifications wear K04 journal bearings significantly faster than stock applications
• Compressor wheel contact damage — modified S3/TT applications that experience intake pipe blowoff without a blow-off valve can cause compressor wheel surge damage; inspect the compressor wheel for tip contact marks before assuming bearing failure

Installation Notes for Audi Passenger Car Turbos

Passenger car turbocharger replacement requires different protocols than heavy diesel engines — the smaller oil passages, tighter tolerances, and higher shaft speeds of these compact units demand careful preparation:

1. Oil and filter change is mandatory — regardless of recent service history; the new turbo’s journal bearings will be exposed to whatever quality of oil is already in the system from first start
2. Pre-lubrication through oil inlet — pour approximately 20 ml of fresh engine oil into the oil inlet port before installation; rotate shaft by hand to distribute across the bearings
3. Replace oil feed line and banjo bolt — the very small orifice in Audi turbocharger banjo bolts (typically 0.8–1.0 mm) is easily blocked by partial coking from the previous failed unit; replace both as a unit
4. Crank without start to prime — on Audi vehicles, remove the fuel pump relay or disable fuel delivery via VCDS/OBD tool, then crank for 10 seconds to build oil pressure before enabling the fuel system
5. Idle for 5 minutes before driving — do not drive away immediately after starting; idle for at least 5 minutes before any load or boost is applied
6. Clear fault codes after installation — use VCDS or compatible OBD software to clear any turbocharger-related adaptation values; on EA888 engines, the ECU needs to re-learn boost pressure targets after a turbocharger replacement

Why HHX PARTS for Audi Turbochargers?

• Full Audi engine coverage — 1.2T/1.4T EA111, 1.9 TDI (GT1749V), 2.0 TFSI EA888 Gen 1/2/3 (RHF5), 2.0T Quattro (RHF5), 2.0 TFSI high-performance (K04), 3.0 TDI V6 (GTB2056VK)
• OEM 06x part number cross-referencing — with engine code verification to ensure the correct variant is matched to your specific vehicle build
• New OEM-grade units — IHI, Garrett, BorgWarner, and KKK-type units manufactured to original specifications; dynamically balanced before dispatch
• Factory-direct pricing — significant savings versus Audi dealer or specialist turbocharger remanufacturer pricing
• Global supply — serving independent Audi/VW workshops, parts distributors, and performance specialists across Europe, the Middle East, Asia, and the Americas

Further Reading

• Turbocharger Complete Guide 2025 — How It Works, Failure Symptoms & Maintenance
• The Complete Turbocharger Buyer’s Guide: 8 Costly Mistakes to Avoid
• The Complete Turbocharger Maintenance Manual
• Diesel Fuel Injectors & Injection Pumps: Complete Buyer’s Guide

Request a Quote for Your Audi Turbocharger

Tell us your Audi OEM part number (06x format), engine code, or vehicle model and year — and we will confirm the correct unit, availability, and pricing within 24 hours.

• Email: gzlh2022@gmail.com
• Phone / WhatsApp: +86 18170714612
• Website: www.hhxparts.com