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 stron

Volkswegon Engine
Compliance Note:

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

Volkswagen 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
Displacement
1,390 cc
Fuel type
Petrol
Configuration
Inline‑4, DOHC, 16‑valve
Aspiration
Turbocharged
Bore × stroke
76.5 mm × 75.6 mm
Power output
103 kW (140 PS)
Torque
220 Nm @ 1,500–3,500 rpm
Fuel system
Direct Injection (TSI), Bosch MED17.5 ECU
Emissions standard
Euro 5
Compression ratio
10.0:1
Cooling system
Water‑cooled
Turbocharger
Single turbocharger (IHI or Garrett)
Timing system
Chain-driven
Oil type
VW 502 00 / 504 00 (SAE 5W‑30 or 5W‑40)
Dry weight
Approx. 120 kg

Volkswagen 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

Common Reliability Issues - VOLKSWAGEN CAXA Compatible Models

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.

VOLKSWAGEN CAXA FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The CAXA is generally a robust and efficient engine. Its main long-term concern is potential high-pressure fuel pump failure on early production units. With diligent use of high-quality fuel, timely oil changes using correct spec oil, and addressing any starting issues early, the engine can be very reliable for high mileage.

The most common issues are high-pressure fuel pump failure (especially on early units), failure of ignition coils or spark plugs, PCV valve clogging, and coolant leaks from the thermostat housing. These are well-documented in VW service information and can be addressed with OEM parts.

The CAXA 1.4 TSI was used in the Golf Mk6, Jetta (A5), and Scirocco from 2008-2015. Due to VW Group platform sharing, it was also fitted to the SEAT Leon Mk2 and Škoda Octavia Mk2 during overlapping production years, always producing 140 PS.

Yes, the CAXA responds very well to ECU remapping. Stage 1 tunes can safely increase power to around 180-190 PS. The engine's internals are strong, but supporting modifications like an upgraded intercooler are recommended for optimal results. Always use a reputable tuner.

Fuel economy is excellent for its performance. Expect around 6.0-7.0 L/100km (40-47 mpg UK) combined in a Golf Mk6. Real-world figures vary with driving style, but it offers a superb balance of power and efficiency for a small turbocharged engine.

Yes. The CAXA is an interference engine. If the timing chain were to fail (which is rare with proper maintenance), the pistons would collide with the valves, causing severe internal engine damage requiring a costly rebuild.

Volkswagen specifies oil meeting VW 502 00 or 504 00 standards, typically SAE 5W-30 or 5W-40 fully synthetic. Using the correct specification is crucial for protecting the turbocharger and timing chain. Change intervals should not exceed 15,000 km or 1 year.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

VOLKSWAGEN Official Site

Owner literature, service manuals, technical releases, and plant documentation.

EUR-Lex

EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).

GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

DVLA: Engine Changes & MoT

Official guidance on engine swaps and inspection implications.

Vehicle Certification Agency (VCA)

UK type-approval authority for automotive products.

Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

Type-approval guidance and documentation.

Methodology

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Last Updated: 25 Feb 2026

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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