Volkswagen Turbocharger Complete Product Guide — 1.2T, 1.4T, 1.8T, 1.9 TDI, 2.0T / TSI Across Golf, Passat, Tiguan & More | HHX PARTS

HHX PARTS Volkswagen Turbocharger Range: The VAG Platform from 1.2T Entry Level to 2.0T Performance

Volkswagen Group (VAG) is the world’s largest automotive group by unit sales — and its engine technology, shared across Volkswagen, Audi, Skoda, and Seat, represents one of the most widely serviced turbocharged engine platforms in the global automotive aftermarket. The iconic 1.8T 20V engine of the late 1990s and 2000s was one of the first mass-market high-output turbocharged petrol engines. Its successor, the EA888 2.0 TFSI/TSI, became the defining performance platform of the 2010s — powering the Golf GTI, Passat, Tiguan, Jetta GLI, and the Audi A3/TT across millions of vehicles worldwide.

At HHX PARTS, we stock turbochargers for the complete Volkswagen engine range — from the compact IHI RHF3 for the 1.2T TSI entry-level engines, through the KKK K03 for the 1.4T TSI and 1.8T 20V platforms, the Mitsubishi TD02 for the 1.4T Golf V/VI economy variant, the Garrett GT1749V for the 1.9 TDI diesel, the IHI RHF5 for the EA888 2.0T petrol, and the IHI RHF5 for the latest MQB 2.0T S3/Golf R high-performance applications.

Volkswagen Engine Family Overview

In-Stock VW Turbocharger Products — Full Range

1.2T TSI — IHI RHF3 (Golf VI, Polo, Touran, Skoda)

• RHF3 Turbocharger 03F145701H / 9V202 — For Volkswagen, Audi, Skoda 1.2L TSI engine (CBZB / CBZA / CBZC engine codes) — Golf VI 1.2T, Polo 1.2T, Touran 1.2T, Skoda Fabia/Octavia 1.2T

1.4T TSI — Mitsubishi TD02 (Golf V/VI, Jetta, Touran, Passat, Scirocco, Eos)

• TD02 Turbocharger 49373-01005 / 03C145702C — For VW Golf V, Golf VI, Jetta, Touran, Passat, Scirocco, Eos 1.4 TSI (CAXA / CBFA engine codes)

1.4T TSI — KKK K03 (Golf V/VI, Jetta, Tiguan, Skoda — CAVA engine)

• K03 Turbocharger 53039700248 / 03C145702P / 53039700099 — For VW, Audi, Seat, Skoda 1.4 TSI CAVA engine — Golf V/VI 1.4 TSI 122 PS, Jetta 1.4T, Tiguan 1.4T
• Turbocharger 04E145702H / 16389700000 — For Audi / VW / Skoda / Seat 1.2T and 1.4T TSI / TFSI engines — EA111 platform compact models

1.8T 20V — KKK K03 Early (Golf IV, Bora, Beetle, Jetta IV)

• K03 Turbocharger 53039700035 / 06A145703Q — For Audi A3, TT, VW Jetta, Beetle, Seat Leon 1.8L 20V (AGU / AUM / ARZ engine codes) — early 1.8T 150 PS
• K03 Turbocharger 53039880052 / 53039700052 / 6A145704T — For Audi A3, TT, VW Beetle, Golf IV, Jetta 1.8L 20V — later 1.8T 150 PS variant (AWT / AUM engine codes)

1.8T 20V — KKK K03 (Passat B5/B6, Audi A4/A6, VW Passat)

• K03 Turbocharger 058145703J / 53039700029 — For VW Passat B5/B6, Audi A4, Audi A6 1.8T (AWM / AMB / ATW engine codes)

1.9 TDI — Garrett GT1749V (Golf IV/V, Passat B5, Jetta, Seat, Skoda)

• GT1749V Turbocharger 713673-5006S / 038253019D / 1121159 — For VW Golf IV/V 1.9 TDI, Passat B5 1.9 TDI, Jetta 1.9 TDI, Seat Leon/Ibiza TDI, Skoda Octavia TDI (ALH / ARL / ASZ / BKD engine codes)

1.8 TFSI — KKK K03 (Tiguan, Skoda Octavia, Audi A3 1.8)

• K03 Turbocharger 53039700159 / 06J145701B / 53039700112 — For VW Tiguan 1.8 TFSI 160 PS, Skoda Octavia 1.8 TSI, Audi A3 1.8 TFSI (TFSI / CNCA engine codes)

2.0 TSI EA888 Gen 1/2 — IHI RHF5 (Golf VI GTI, Jetta GLI, Passat, Eos)

• RHF5 Turbocharger 9VA15 / 110173P006 / 06J145689G — For VW Jetta GLI, Golf VI GTI, Passat 2.0T, Eos 2.0T, Scirocco 2.0T with CBFA EA888 engine

2.0 TSI 211 PS — KKK K03 (Golf VI, Scirocco R, Sharan II)

• K03 Turbocharger 53039700290 / 06J145713K — For VW Golf VI 2.0 TSI 211 PS, Scirocco R 2.0 TSI, Sharan II 2.0 TSI (CCZA / CCZB engine codes)

2.0T High Performance — IHI RHF5 IS38 (Audi S3 8V, Golf R Mk7)

• RHF5 Turbocharger 06K145722T / 06K145702N / 06K145722A — For Audi A3 S3 8V, VW Golf R Mk7 2.0T (CJXC / CJXE / CZPB engine codes) — the IHI IS38 high-performance turbocharger for MQB Gen 3 applications

Understanding VW/VAG OEM Turbocharger Part Numbers

Volkswagen Group uses a consistent OEM part numbering system across all VAG brands (VW, Audi, Skoda, Seat):

• 03x / 06x / 058 prefix format — identifies the engine group and generation: 03C = EA111 1.4T; 06A = EA113 1.8T early; 058 = EA113 B5 platform; 06J = EA888 Gen 1/2; 06K = EA888 Gen 3; 03F = EA111 1.2T
• 145702 / 145703 / 145713 / 145701 — the VAG system code sequence for turbocharger components, consistent across all brands and engine families
• KKK (BorgWarner) cross-references — K03 units carry both the VAG OEM number (06A145703Q, 06J145713K) and the KKK/BorgWarner number (53039700035, 53039700290); both are valid ordering references
• IHI cross-references — IHI RHF3/RHF5 units carry both the VAG OEM number (03F145701H, 06J145689G, 06K145722T) and the IHI reference (9V202, 9VA15, IS38)
• Engine code is the key — many VAG vehicles use the same displacement but different engine codes with different turbochargers; always verify the engine code (visible on the cam cover or from VIN lookup) before ordering

Common Failure Patterns by Platform

1.8T 20V (EA113) K03 — Classic Failure Mode

• Oil sludge from infrequent oil changes — the 1.8T 20V is notorious for sludge accumulation when oil changes are delayed beyond 5,000 miles; sludge blocks the K03’s fine oil feed passages and causes bearing starvation within minutes
• Oil leak at compressor housing seal — high-mileage K03 units on 1.8T engines commonly develop compressor-side seal failure; blue smoke on overrun and oil consumption are the indicators
• Wastegate actuator failure — the K03 wastegate actuator diaphragm cracks with age; causes overboost followed by limp mode

1.9 TDI (GT1749V) — VNT Vane Sticking

• VNT mechanism carbon fouling — the single most common VW turbocharger failure; affects all 1.9 TDI engines with high EGR accumulation; symptoms are characteristic surging power at low RPM with a flat mid-range; cleaning the vane mechanism frequently restores full performance
• N75 boost control valve failure — misdiagnosed as turbo failure; the N75 controls the GT1749V actuator and its failure mimics turbo failure symptoms; test N75 operation before ordering a replacement turbocharger

EA888 2.0 TSI Gen 1/2 (RHF5) — Known Issues

• Oil consumption and blue smoke — the EA888 Gen 1/2 has documented piston ring wear that can mimic turbo seal failure; distinguish by checking for an oily film inside the intake pipe between turbo and intercooler — oil there confirms turbo seal failure
• Boost leak from plastic charge pipe — the OEM plastic charge pipe on many EA888-equipped VW vehicles cracks with age and thermal cycling; always pressure-test the charge system before assuming turbo failure
• Wastegate actuator play (Golf VI GTI) — the K03 on the 211 PS Golf VI GTI develops actuator arm play causing overboost codes; actuator replacement is inexpensive versus full turbo replacement

IS38 2.0T (Golf R / S3) — Performance Application

• The IS38 is robust under standard use; failures are predominantly from aggressive tuning above OEM boost pressure or insufficient oil change frequency on enthusiast-driven vehicles
• The IS38 / 06K145722T is a popular upgrade path from the standard Golf GTI / S3 turbo — it delivers higher flow and improved performance at stage 1–2 tune levels

Why HHX PARTS for VW/VAG Turbochargers?

• Complete VAG turbocharger range — 11 products covering every major VW engine from 1.2T TSI to 2.0T IS38 performance, plus shared Audi/Seat/Skoda applications
• Multi-brand cross-referencing — same part number in VW, Audi, Skoda, and Seat format maintained across all engine families
• Engine code verification — we confirm the correct turbocharger by engine code (not just displacement) to eliminate the most common ordering errors on VAG platforms
• New OEM-grade IHI and BorgWarner-type units — manufactured to original specifications; dynamically balanced before dispatch
• Factory-direct pricing — significant savings versus VW dealer, Audi dealer, or specialist VAG turbocharger remanufacturer pricing
• Global supply — serving independent VW/VAG workshops, parts distributors, and performance specialists across Europe, Asia, the Middle East, and the Americas

Further Reading

• Audi Turbocharger Complete Product Guide — EA888 / 1.9 TDI / 3.0 TDI V6
• BMW Turbocharger Complete Product Guide — N47 / B47 / B48 / B58
• Mercedes-Benz Turbocharger Guide — OM651 / OM936 / OM471 / DD13
• Ford Turbocharger Complete Product Guide — EcoBoost / TDCi / Mustang
• The Complete Turbocharger Buyer’s Guide: 8 Costly Mistakes to Avoid
• The Complete Turbocharger Maintenance Manual

Request a Quote for Your VW Turbocharger

Tell us your VW/VAG OEM part number (03x/06x format), engine code, or vehicle model and production year — and we will confirm the correct unit, availability, and pricing within 24 hours.

• Email: gzlh2022@gmail.com
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• Website: www.hhxparts.com