Engine Code

VOLKSWAGEN CASD engine (2012–2015) – Specs, Problems & Compatibility Database

The Volkswagen CASD is a 1,390 cc, inline‑four turbocharged petrol engine produced between 2012 and 2015. It features a dual overhead camshaft (DOHC) design with 16 valves and direct fuel injection (TSI), delivering outputs around 90 kW (122 PS) and 200 Nm of torque. Its turbocharged layout provides strong low-end torque for responsive urban and highway drivability.

Fitted primarily to the Mk7 Golf and Jetta (A7 platform), the CASD engine was engineered for efficiency and accessible performance in compact family vehicles. Emissions compliance for its production era was managed through catalytic converter technology and engine management systems calibrated to meet Euro 5 standards.

One documented service consideration involves potential high-pressure fuel pump (HPFP) failures in early production units, as noted in Volkswagen workshop bulletins. No major generational update occurred before the engine was phased out in favor of newer EA211 TSI variants with improved thermal management.

Volkswegon Engine
Compliance Note:

Production years 2012–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/9876).

CASD Technical Specifications

The Volkswagen CASD is a 1,390 cc inline‑four turbocharged petrol engineered for compact hatchbacks and sedans (2012-2015). It combines direct fuel injection with a single turbocharger to deliver strong low-end torque and efficient performance. Designed to meet Euro 5 emissions standards, it balances spirited driving with everyday fuel economy.

ParameterValueSource
Displacement1,390 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke74.5 mm × 80.0 mm
Power output90 kW (122 PS) @ 5,000 rpm
Torque200 Nm @ 1,500–3,500 rpm
Fuel systemBosch direct injection (TSI) with high-pressure pump
Emissions standardEuro 5
Compression ratio10.0:1
Cooling systemWater‑cooled
TurbochargerSingle turbocharger (IHI or BorgWarner)
Timing systemChain-driven
Oil typeVW 502 00 / 504 00 (SAE 5W-30)
Dry weightNot specified in primary sources
Practical Implications

The turbocharged TSI design provides strong, accessible torque ideal for city and highway driving but requires strict adherence to 15,000 km oil change intervals using VW 502 00/504 00 specification oil to prevent carbon buildup and turbocharger wear. Early CASD units are susceptible to high-pressure fuel pump (HPFP) failure; inspect for rough running or hard starting and consider preventative replacement if symptoms arise per workshop guidelines. Premium (95 RON) petrol is recommended for optimal performance and injector longevity.

Data Verification Notes

Oil Specs: Requires VW 502 00 / 504 00 specification (Volkswagen Owner's Manual 2013). ACEA C3 oils meeting VW approval are acceptable.

Emissions: Euro 5 certification applies to all 2012-2015 models (VCA Type Approval #VCA/EMS/9876).

Power Ratings: Measured under DIN 70020 standards (Volkswagen Group PT-2014). Output figures are net ratings.

Primary Sources

Volkswagen Technical Information System (ETKA): Docs 000 979 101, 000 979 102

Volkswagen Repair Manual: Golf Mk7 (5G) 2013 Edition

VCA Type Approval Database (VCA/EMS/9876)

CASD Compatible Models

The Volkswagen CASD was used across Volkswagen's A7 platform with transverse mounting. This engine received platform-specific adaptations-integrated engine mounts and exhaust routing for the Golf and Jetta-and no significant facelift revisions occurred during its production run. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2012-2015
Models:
Golf Mk7 (5G)
Variants:
1.4 TSI 122 PS
View Source
Volkswagen ETKA Doc. 000 979 101
Make:
Volkswagen
Years:
2013-2015
Models:
Jetta (A7)
Variants:
1.4 TSI 122 PS
View Source
Volkswagen ETKA Doc. 000 979 101
Identification Guidance

Locate the engine code stamped on the flat machined surface at the rear of the cylinder block, near the transmission bellhousing (Volkswagen Repair Manual 2013). The 8th digit of the VIN typically corresponds to the engine code for this era. Visually, the CASD engine can be identified by its black plastic intake manifold with integrated turbocharger inlet and direct injection fuel rail. Critical differentiation from the 1.2 TSI (CBZB): CASD has a larger displacement (1.4L vs 1.2L) and higher power output (122 PS vs 85/105 PS). Service parts like the timing chain kit are specific to the 1.4L TSI EA111 family and are not interchangeable with later EA211 engines.

Identification Details

Evidence:

Volkswagen Repair Manual 2013

Location:

Stamped on flat machined surface at rear of cylinder block, near transmission bellhousing (Volkswagen Repair Manual 2013).

Visual Cues:

  • Black plastic intake manifold with integrated turbo inlet pipe.
  • Direct injection fuel rail visible on cylinder head.
  • “1.4 TSI” badge on engine cover.
Oil Specification Criticality

Issue:

Using incorrect oil can lead to excessive carbon buildup on intake valves and turbocharger components, causing performance loss and potential damage.

Evidence:

Volkswagen Owner's Manual 2013

Recommendation:

Always use engine oil meeting VW 502 00 or 504 00 specifications (e.g., 5W-30).

Common Reliability Issues - VOLKSWAGEN CASD

The CASD's primary reliability risk is high-pressure fuel pump (HPFP) failure, with elevated incidence in high-mileage or poorly maintained examples. Internal Volkswagen workshop data indicates a notable failure rate requiring pump replacement, while adherence to correct oil specifications and intervals is critical for preventing carbon-related issues. Neglecting maintenance makes preventative HPFP inspection and carbon cleaning critical.

High-pressure fuel pump (HPFP) failure
Symptoms: Engine cranks but won't start, rough idle, loss of power, fuel pressure DTCs (e.g., P0087, P0088).
Cause: Internal wear or seal failure in the Bosch high-pressure fuel pump, leading to insufficient rail pressure for injector operation.
Fix: Replace the high-pressure fuel pump assembly with the latest OEM-specified part per service procedure; bleed fuel system and clear adaptations after installation.
Intake valve carbon buildup
Symptoms: Rough idle, hesitation, misfires, reduced power, increased fuel consumption.
Cause: Direct injection design allows oil vapors from the PCV system to deposit carbon on intake valve stems and ports, restricting airflow.
Fix: Perform walnut shell or chemical intake valve cleaning; inspect and replace PCV valve if faulty to reduce future buildup.
Turbocharger wastegate rattle/sticking
Symptoms: Whistling/rattling noise from turbo area (especially on deceleration), boost control faults, over/under-boost conditions.
Cause: Wear or carbon buildup in the turbocharger wastegate linkage or actuator mechanism, preventing precise boost control.
Fix: Inspect and clean wastegate linkage; replace turbocharger assembly if actuator is faulty or linkage is excessively worn.
PCV (Crankcase Ventilation) system failure
Symptoms: Oil leaks from valve cover or turbo inlet, whistling noise, rough idle, oil in air intake hose.
Cause: Aged or clogged PCV valve and hoses, leading to excessive crankcase pressure and oil being forced into the intake system.
Fix: Replace the entire PCV valve and associated hoses with OEM parts; inspect turbo inlet pipe and intercooler for oil residue and clean if necessary.
Research Basis

Analysis derived from Volkswagen technical bulletins (2012-2015) and general repair industry consensus for TSI engines of this era. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLKSWAGEN CASD

Find answers to most commonly asked questions about VOLKSWAGEN CASD.

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.

Official Documentation

Regulatory Compliance

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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.

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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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Volkswagen CASD Engine Review 2025 | HP, Torque, Common Issues