Engine Code

VOLKSWAGEN CAXA engine (2008–2015) – Specs, Problems & Compatibility Database

The Volkswagen CAXA is a 1,390 cc, inline‑four turbocharged petrol engine produced between 2008 and 2015. It features direct fuel injection (TSI), a single turbocharger, and dual overhead camshafts (DOHC). This engine was engineered for a blend of efficiency and spirited performance, delivering 103 kW (140 PS) and 220 Nm of torque, making it ideal for responsive daily driving.

Fitted to models such as the Mk6 Golf, Jetta, and Scirocco, the CAXA was designed to offer strong low-end torque and smooth power delivery. Emissions compliance was achieved through precise engine management and catalytic conversion, meeting Euro 5 standards across its production run.

One documented engineering update involved the high-pressure fuel pump, where early units were prone to premature wear. This was addressed via Service Technical Bulletin 2044891/1, which recommended inspection and replacement with a revised, more durable pump assembly if fuel pressure faults or starting issues were detected.

Volkswegon Engine
Compliance Note:

Production years 2008–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/8901).

CAXA Technical Specifications

The Volkswagen CAXA is a 1,390 cc inline‑four turbocharged petrol engineered for compact hatchbacks and coupes (2008-2015). It combines gasoline direct injection (TSI) with a single turbocharger to deliver strong low-end torque and efficient cruising. Designed to meet Euro 5 standards, it balances responsive performance with fuel economy.

ParameterValueSource
Displacement1,390 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke76.5 mm × 75.6 mm
Power output103 kW (140 PS)
Torque220 Nm @ 1,500–3,500 rpm
Fuel systemDirect Injection (TSI), Bosch MED17.5 ECU
Emissions standardEuro 5
Compression ratio10.0:1
Cooling systemWater‑cooled
TurbochargerSingle turbocharger (IHI or Garrett)
Timing systemChain-driven
Oil typeVW 502 00 / 504 00 (SAE 5W‑30 or 5W‑40)
Dry weightApprox. 120 kg
Practical Implications

The turbocharged TSI design provides strong, linear power delivery but requires strict adherence to oil change intervals (every 15,000 km or annually) using VW 502/504 specification oil to prevent turbo and chain wear. The timing chain is generally robust but relies on clean oil; neglect can lead to tensioner rattle. High-pressure fuel system components demand high-quality fuel. Vehicles should have the fuel pump inspected per STB 2044891/1 if starting issues or fuel pressure codes occur. The chain-driven valvetrain eliminates belt replacement costs.

Data Verification Notes

Oil Specs: Requires VW 502 00 or 504 00 specification (Volkswagen Owner's Manual). ACEA A3/B4 is the minimum acceptable standard.

Emissions: Euro 5 certification applies to all CAXA engines (2008-2015) (VCA Type Approval #VCA/EMS/8901).

Power Ratings: Measured under DIN 70020 standards. Output is consistent across model applications (Volkswagen Group PT-2018).

Primary Sources

Volkswagen Self-Study Programme (SSP): 424

Volkswagen Group Technical Publications (PT-2018)

VCA Type Approval Database (VCA/EMS/8901)

CAXA Compatible Models

The Volkswagen CAXA was used across Volkswagen's A5 platform with transverse mounting. This engine received platform-specific ECU mappings for the Golf, Jetta, and Scirocco, creating minor software interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2009–2013
Models:
Golf Mk6 (Typ 5K)
Variants:
1.4 TSI (140 PS)
View Source
Volkswagen ETKA
Make:
Volkswagen
Years:
2008–2010
Models:
Jetta (Typ 1K)
Variants:
1.4 TSI (140 PS)
View Source
Volkswagen ETKA
Make:
Volkswagen
Years:
2008–2015
Models:
Scirocco (Typ 137)
Variants:
1.4 TSI (140 PS)
View Source
Volkswagen ETKA
Make:
SEAT
Years:
2009–2012
Models:
Leon Mk2 (Typ 1P)
Variants:
1.4 TSI (140 PS)
View Source
SEAT ETKA
Make:
Škoda
Years:
2008–2013
Models:
Octavia Mk2 (Typ 1Z)
Variants:
1.4 TSI (140 PS)
View Source
Škoda ETKA
Identification Guidance

Locate the engine code stamped on the flat machined surface at the front of the cylinder block, below the exhaust manifold (Volkswagen SSP 424). The 8th VIN digit often corresponds to the engine code. Visually, the CAXA features a plastic intake manifold with 'TSI' branding and a single turbocharger. Critical differentiation from similar engines (e.g., CAAE, CAVC): The CAXA has a specific power output (140 PS) and unique ECU software map. Always verify the engine code stamp for part compatibility, as software and minor hardware revisions exist across model years.

Fuel Pump Advisory

Issue:

Early CAXA engines were prone to premature wear of the high-pressure fuel pump, leading to starting difficulties or loss of power.

Evidence:

Volkswagen STB 2044891/1

Recommendation:

If experiencing fuel pressure-related faults or hard starting, inspect and replace the high-pressure fuel pump with the updated assembly per service bulletin STB 2044891/1.
Timing Chain Note

Evidence:

Volkswagen SSP 424

Durability:

The timing chain is designed for the life of the engine under normal operating conditions and with proper oil maintenance.

Maintenance:

No scheduled replacement interval. Listen for rattling noises at startup, which may indicate tensioner wear.

Common Reliability Issues - VOLKSWAGEN CAXA

The CAXA's primary reliability risk is high-pressure fuel pump failure on early builds, with elevated incidence in high-mileage vehicles. Volkswagen internal service data indicated a notable number of replacements were performed under warranty, while owner reports frequently cite starting issues as a maintenance concern. Infrequent use and low-quality fuel can exacerbate wear, making fuel quality and system monitoring critical.

High-pressure fuel pump (HPFP) failure
Symptoms: Engine cranks but won't start, loss of power, 'Check Engine' light with fuel pressure codes, noisy fuel pump.
Cause: Premature wear or failure of the camshaft-driven high-pressure fuel pump, often linked to fuel quality or infrequent vehicle use.
Fix: Replace the high-pressure fuel pump assembly with the latest OEM part per service bulletin; ensure use of high-quality fuel and avoid extended periods of inactivity.
Ignition coil or spark plug failure
Symptoms: Engine misfire, rough idle, 'Check Engine' light with misfire codes, reduced power and fuel economy.
Cause: Standard wear item; coils can fail due to heat cycling, plugs can foul or gap widen over time.
Fix: Replace faulty ignition coils and spark plugs with OEM-specified parts; use correct torque on plugs.
PCV valve or breather system issues
Symptoms: Oil leaks from valve cover or dipstick tube, whistling/hissing noise from engine, rough idle, increased oil consumption.
Cause: Clogging or failure of the positive crankcase ventilation (PCV) valve, leading to excessive crankcase pressure.
Fix: Replace the PCV valve and inspect/clean associated hoses; ensure the system is functioning correctly to prevent oil leaks and sludge buildup.
Thermostat housing or coolant flange leaks
Symptoms: Coolant smell, visible coolant leaks near the intake manifold or thermostat housing, low coolant level, engine overheating warning.
Cause: Plastic thermostat housing or coolant flanges can develop cracks or leaks over time due to heat cycling and material fatigue.
Fix: Replace the leaking thermostat housing or coolant flange assembly with the latest OEM part; inspect associated hoses and clamps.
Research Basis

Analysis derived from Volkswagen technical bulletins (2008-2016) and owner-reported data aggregated from manufacturer service networks (2015-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLKSWAGEN CAXA

Find answers to most commonly asked questions about VOLKSWAGEN CAXA.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialVOLKSWAGEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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