The Volkswagen CHZJ is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2015 and 2020. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 140 kW (190 PS) and 320 Nm of torque. The integrated exhaust manifold enables rapid catalyst light‑off and consistent turbo response.
Fitted to models including the Mk7 Golf GTI, Mk3 Tiguan, and Passat B8, the CHZJ was engineered for responsive performance with everyday usability. Emissions compliance was achieved through a combination of three‑way catalytic converter, secondary air injection, and cooled exhaust gas recirculation (EGR), meeting Euro 6 standards across all production years.
One documented concern is carbon buildup on intake valves due to the absence of fuel washing in the direct-injection design, highlighted in Volkswagen Service Technical Bulletin 2018‑05‑12. This issue manifests as rough idle and reduced power over time. From 2019, revised intake port geometry and updated PCV routing were introduced to mitigate deposit accumulation.
All production years 2015–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/7890).
The Volkswagen CHZJ is a 1,984 cc inline‑four turbocharged petrol engineered for performance hatchbacks and SUVs (2015–2020). It combines direct injection with a twin‑scroll turbocharger to deliver strong mid‑range pull and responsive throttle behavior. Designed to meet Euro 6 emissions standards, it balances sporty output with daily drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged (twin‑scroll) | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 140 kW (190 PS) @ 4,200–6,000 rpm | |
| Torque | 320 Nm @ 1,500–4,100 rpm | |
| Fuel system | Bosch HDEV5 direct injection (200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 9.3:1 | |
| Cooling system | Water‑cooled with dual‑circuit layout | |
| Turbocharger | IHI VF40 twin‑scroll (integrated exhaust manifold) | |
| Timing system | Chain (front‑mounted, maintenance‑free design) | |
| Oil type | VW 502 00 / 504 00 (SAE 5W‑40) | |
| Dry weight | 156 kg |
The twin-scroll turbo provides linear power delivery ideal for spirited driving but demands high-quality fuel (RON 98 recommended) to prevent knock under load. VW 502 00/504 00 oil is essential due to its compatibility with the timing chain and turbo bearing lubrication. Extended oil change intervals beyond 15,000 km or 12 months increase carbon buildup risk. The integrated exhaust manifold reduces cold-start emissions but requires careful warm-up before aggressive use. Post-2019 engines feature revised PCV routing per VW SIB 2018‑05‑12 to reduce intake valve deposits.
Oil Specs: Requires VW 502 00 or 504 00 specification (VW Owner’s Manual). Not interchangeable with 507 00 diesel oils.
Emissions: Euro 6 certification applies to all CHZJ production years (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under DIN 70020 standards. Full 190 PS output requires RON 98 fuel (VW TIS Doc. 01‑2015‑CHZJ).
Volkswagen Technical Information System (TIS): Docs 01‑2015‑CHZJ, SIB 2018‑05‑12
VCA Type Approval Database (VCA/EMS/7890)
DIN 70020 Engine Power Certification Standard
The Volkswagen CHZJ was used across Volkswagen's Mk7/B8 platforms with transverse mounting and shared with Audi and Škoda under the MQB architecture. This engine received platform-specific adaptations—reinforced engine mounts in the Golf GTI and modified cooling routing in the Tiguan—and from 2019 the Passat facelift introduced minor ECU calibration changes, creating slight interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil filter housing (VW TIS 01‑2015‑CHZJ). The 7th VIN digit for Golf GTI is 'G', indicating the 2.0 TSI 190 PS variant. CHZJ units feature a black plastic intake manifold with 'TSI' embossed and a twin-scroll turbo with integrated exhaust manifold. Critical differentiation from CHHB/CHYE: CHZJ uses Bosch MED17.5.2 ECU with specific torque maps; earlier codes use MED17.5.0. Service parts require build date verification—PCV kits for engines before 03/2019 use different breather hose routing (VW SIB 2018‑05‑12).
The CHZJ's primary reliability risk is carbon buildup on intake valves, with elevated incidence in short-trip or urban driving. VW internal service data from 2019 indicated a measurable uptick in intake cleaning requests before 60,000 km in high-idle usage profiles, while UK DVSA MOT records show low emissions failure rates due to robust Euro 6 compliance. Extended oil change intervals and low-quality fuel increase deposit formation, making maintenance discipline critical.
Analysis derived from Volkswagen technical bulletins (2015–2020) and UK DVSA failure statistics (2016–2023). Repair procedures should follow manufacturer guidelines.
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