Audi/CJXC
Audi · Single turbo

CJXC

S3·8V·20132020

"2017 S3 with 31k miles, misfiring while cold — specialist said the engine is shot and needs replacing."

RISKY
64/ 100
"Fast but fragile under pressure"
261
Max HP
280
Torque Nm
10,000
Oil interval km
0
Recalls
4
Known issues
Known Issues
Premature Engine Failure / Cylinder Damage€5,000–12,000 · 30,000–80,000 kmCRITICAL

Reports of catastrophic engine failure at relatively low mileage, including cylinder damage leading to the need for full engine replacement. Cold misfires appear to be an early warning sign before complete failure.

Cold start misfires
Rough idle when cold
Loss of power
Engine warning light
DIY: Expert only
Crankshaft/Camshaft Correlation Fault (P0016)€400–1,800 · 30,000–100,000 kmHIGH

Fault code P001609 indicating crank and camshaft correlation error reported on CJXC engines. Can point to timing chain stretch, VVT solenoid failure, or sensor issues.

MIL/check engine light
Rough running
Reduced performance
Hard starting
DIY: Hard
Engine Coolant Bypass Valve Failure (P2681)€150–500 · 60,000–150,000 kmMODERATE

P2681 code indicating the engine coolant bypass valve control circuit is open, often due to a faulty bypass valve or wiring issue. Affects thermal management and can lead to inefficient warm-up.

Check engine light P2681
Slow engine warm-up
Fluctuating coolant temperature
DIY: Moderate
EGR Cooler Issues€600–1,500 · 80,000–160,000 kmMODERATE

EGR cooler failures flagged in forum data associated with VAG EA888 Gen 3 platform engines. Failures can cause coolant loss, white smoke, or contamination.

White smoke from exhaust
Coolant loss
EGR-related fault codes
Rough running
DIY: Moderate
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Buying Checklist
Perform a cold start and listen for timing chain rattle or misfires before engine reaches operating temperature
OBD scan for all stored and pending fault codes, specifically P0016, P2681, and any misfire codes
Request full service history and verify oil changes were performed at no more than 10,000 km intervals with correct VW 504/507 spec oil
Conduct a compression or leakdown test to rule out cylinder wall damage, especially on any car above 50,000 km
Inspect coolant level and condition for signs of EGR cooler contamination (milky residue or discolouration)
Check for any previous tune or ECU remap, as modified cars are significantly more prone to premature engine wear on this unit
Service Reality
Community oil interval10,000 km
Oil specificationVW 504.00/507.00 5W-30 fully synthetic
Est. ownership cost (2yr)€1,500–3,500 per year including servicing, wear items, and risk provisioning for high-cost repairs
Real mix fuel consumptionNo data
Also Found In
Seat Leon Cupra (8V era)Volkswagen Golf R Mk7Audi TTS Mk2
Buying Advice

The CJXC is an upgraded version of the EA888 Gen 3 with genuine engineering improvements, but forum evidence shows it is not immune to serious engine failures even at low mileage. A cold-start misfire on any example should be treated as a dealbreaker, as cylinder damage can follow rapidly. Budget for higher maintenance costs than typical hot hatches and insist on a pre-purchase inspection including a compression test. Unmolested, well-serviced examples with full history are worth seeking out, but tuned or neglected cars should be avoided entirely.

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