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 a…
Production years 2012–2015 meet Euro 5 standards .
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.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,390 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 80.0 mm | |
Power output | 90 kW (122 PS) @ 5,000 rpm | |
Torque | 200 Nm @ 1,500–3,500 rpm | |
Fuel system | Bosch direct injection (TSI) with high-pressure pump | |
Emissions standard | Euro 5 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbocharger (IHI or BorgWarner) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | Not specified in primary sources |
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.
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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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CASD engine is generally robust if its critical maintenance schedule is followed. The main concern is potential HPFP failure, which can strand the vehicle. With timely oil changes using the correct specification and addressing carbon buildup, it can be very dependable. Its chain-driven timing system is a durability advantage over belt-driven engines.
The most frequent issues are high-pressure fuel pump (HPFP) failures, carbon buildup on intake valves causing running problems, turbocharger wastegate rattles, and PCV system failures leading to oil leaks. These are well-documented in Volkswagen service literature for the Mk7 Golf and Jetta.
The CASD engine was primarily used in the seventh-generation Volkswagen Golf (Mk7, 5G) and the corresponding Jetta (A7) sedan from model years 2012 to 2015. It was typically badged as the '1.4 TSI 122 PS'. It was not used in earlier Mk6 Golfs or later models equipped with the EA211 engine.
Aftermarket ECU tuning is common on the CASD platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Expect real-world figures around 6.5-7.5 L/100km (38-43 mpg UK) combined for a manual transmission Golf. Highway cruising can achieve ~5.5 L/100km (51 mpg UK), while city driving may be closer to 8.5 L/100km (33 mpg UK). Economy is very good for a turbocharged petrol engine of its performance level.
Yes. Like virtually all modern engines, the CASD is an interference design. If the timing chain were to catastrophically fail (though rare), the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain is designed to last the engine's lifetime with proper oil maintenance.
Volkswagen mandates oil meeting the VW 502 00 or 504 00 specification, typically a 5W-30 fully synthetic oil. Using this specific oil is crucial for protecting the turbocharger, preventing carbon buildup, and ensuring the longevity of the timing chain. Always check and top up the oil level regularly.
Comprehensive technical documentation and regulatory references
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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.
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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