Engine Assembly for EA888 III CYY for AUDI 1.8T — field notes, specs, and real-world insight

If you’re weighing a replacement for a tired 1.8 TFSI, the
Engine Assembly for EA888 III CYY for AUDI 1.8T is the one many independent shops ask me about. To be honest, the EA888 Gen 3 is one of the most serviceable modern turbo fours—solid block, sensible cooling, clever head casting—and when it’s assembled right, it’s a sweet daily companion.

What’s trending in the 1.8T space

Shops are moving from piecemeal long-block rebuilds to complete assemblies with baseline dyno and leak-down data. Why? Less risk, fewer comebacks. For the EA888 III family (CYY, CJSA, CJSB, CJSC), availability has improved and—surprisingly—lead times are getting shorter even with tighter QC. Many customers say they want “drop-in, start, and reset adaptations,” not a multi-week parts chase.

Core technical profile

Parameter	Typical spec (EA888 Gen 3 1.8T)
Supported codes	CYY, CJSA, CJSB, CJSC (Audi A3/A4/A5; some VW 1.8 TSI)
Displacement	≈ 1798 cc (1.8 L)
Bore × stroke	≈ 82.5 mm × 84.1 mm
Compression ratio	≈ 9.6–10.3:1 (variant-dependent; real-world use may vary)
Induction	Turbocharged, integrated exhaust manifold head, water-to-air intercooler
Valvetrain	Chain-driven DOHC, VVT on intake/exhaust; Audi AVS on select trims
Output band	≈ 125–132 kW (170–180 hp); 250–320 Nm (market/calibration)
Emissions	Euro 5/6 capable when paired with compliant aftertreatment

Where it fits and why it works

Intended for Audi A3, A4, A5 (1.8T), plus selected VW 1.8 TSI applications. In fact, for busy city fleets and commuter builds, the Engine Assembly for EA888 III CYY for AUDI 1.8T offers a balanced mix of NVH control, mid-range torque, and fuel efficiency. Advantages we hear from installers:

• Gasket sealing and PCV architecture on Gen 3 are calmer than early Gen 2—fewer oil haze complaints.
• Thermal management (integrated exhaust manifold) warms cats faster; emissions readiness quicker on cold mornings.
• Chain drive with improved tensioning; long service intervals when oil spec is respected.

How this assembly is built and tested

Origin: 289 Heping East Road, Chang’an District, Shijiazhuang, Hebei, China.

Process flow (abridged, but the gist):

• Materials: Al-Si block and head; forged steel crank; fracture-split rods; coated pistons (low-friction skirt).
• Machining: CNC-decking; plateau-honed cylinders; precise line-boring; valve seat concentricity checked to ≈0.02 mm.
• Assembly: Torque-to-yield fasteners, calibrated to OEM sequences; chain timing pinned and verified.
• Testing:
  compression ≈ 12–14 bar/cyl; leak-down ≤ 8% at TDC (warm);
  hot-idle oil pressure ≈ 1.5–2.0 bar (5W-30 VW 504 00); OBD monitors pass on baseline jig.
• Standards: Built under automotive QMS aligned to IATF 16949 and ISO 9001 principles; power checks referenced to SAE J1349 procedures.
• Service life: around 200,000–300,000 km with correct maintenance; oil intervals and PCV health matter.

Customization and what you can request

• Accessory loadout: bare long-block or with turbo/manifolds, HPFP, injectors, coils, and sensors pre-installed.
• Turbo optioning: small-frame OE-equivalent for 1.8T response; performance variants by request (calibration needed).
• Break-in oil pre-prime and shipping plugs for clean install; crate foam-in-place packaging for overseas transit.

Vendor landscape (quick take)

Vendor	Certs	EOL Testing	Warranty	Lead Time	Notes
Oujia (Hebei)	ISO 9001 / IATF-aligned	Compression, leak-down, oil pressure sheet	≈ 12 mo / 20,000 km (typical)	Around 7–21 days	Value-focused; customization options
Audi Genuine (crate)	OEM	OEM dyno/pass bench	OEM terms	Dealer-dependent	Highest cost; perfect match
Generic reman	Varies	May be visual only	3–12 mo	Varies	Check test data before buying

Installer notes and case file

Quick case: an independent in Warsaw swapped a Engine Assembly for EA888 III CYY for AUDI 1.8T into a 2014 A4 (CJSA). Time on the lift: ≈ 9 hours including cleaning and coolant bleed. After basic adaptation reset and a 20-minute learning drive, trims stabilized and fuel economy improved about 6% over the tired unit. Feedback? “Quieter chain, faster warm-up, no seepage.” That lines up with what I’ve seen.

Practical tip: stick to VW 504 00/507 00 oil and keep an eye on PCV and coolant temp thresholds. It seems that most “mystery oil use” stories trace back to maintenance lapses, not the long-block itself.

Final checklist

• Confirm engine code (CYY/CJSA/CJSB/CJSC) and ECU calibration match.
• Request test sheet: compression, leak-down, oil pressure, and bench run if available.
• Pre-prime oil system; replace coolant, plugs, and filters; clear adaptations.

Authoritative references

1. IATF 16949:2016 – Automotive QMS Requirements. https://www.iatfglobaloversight.org
2. SAE J1349 – Engine Power and Torque Certification. https://www.sae.org/standards/content/j1349
3. VW/Audi EA888 Gen.3 Technical Overview (erWin Service Literature, subscription). https://erwin.audi.com
4. Euro 5/6 Emissions Regulation (EC) No 715/2007. https://eur-lex.europa.eu