The Volkswagen CSLA is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2019. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 92 kW (125 PS) and 200 Nm of torque. The combination of turbocharging and direct injection enables strong low‑rpm torque for responsive everyday drivability.
Fitted to models such as the Mk7 Golf, Polo, and T — Cross, the CSLA was engineered for drivers see…
All production years 2012–2019 meet Euro 6 standards .
The Volkswagen CSLA is a 1,395 cc inline‑four turbocharged petrol engine engineered for compact hatchbacks and SUVs (2012–2019). It combines direct fuel injection (TSI) with a single turbocharger to deliver strong low‑rpm torque and high specific output. Designed to meet Euro 6 emissions standards, it balances urban agility with motorway refinement.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,395 cc | |
Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 80.0 mm | |
Power output | 92 kW (125 PS) @ 5,000 rpm | |
Torque | 200 Nm @ 1,400–4,000 rpm | |
Fuel system | Bosch HDP5 high-pressure direct injection (up to 110 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with dual‑circuit layout | |
Turbocharger | Single turbocharger (BorgWarner or Honeywell) | |
Timing system | Chain‑driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The Volkswagen CSLA was used across Volkswagen's Mk5/Mk7 platforms with transverse mounting and shared with Škoda and SEAT under MQB architecture. This engine received platform-specific adaptations—revised cooling ducts in the T-Cross and modified intake routing in the Polo Mk6—and from 2016 the Golf Mk7 received updated timing components, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 CSLA offers good efficiency and urban responsiveness, but early models (2012–2015) are prone to timing chain tensioner wear. Later revisions (post-2016) improved durability significantly. With RON 98 fuel, correct oil (VW 502 00), and timely chain updates, the engine can be very reliable beyond 200,000 km.
Top issues include timing chain tensioner wear, carbon buildup on intake valves, turbo wastegate rattle, and minor oil leaks. Timing concerns are addressed in VW SIB 2015‑12. Carbon buildup is typical of all direct-injection engines and not unique to VW.
The CSLA powered the Golf Mk7 (2012–2019), Polo Mk6 (2017–2019), T-Cross (2018–2019), plus Škoda Octavia Mk3 and SEAT Leon Mk3. All are 1.4 TSI applications with 125 PS output and Euro 6 compliance.
Aftermarket ECU tuning is common on the CSLA 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.
In a Golf Mk7, expect ~6.8 L/100km (city), ~4.5 L/100km (highway), or ~42 mpg UK combined. Real-world mixed driving typically yields 38–45 mpg UK. Economy improves with conservative driving but drops sharply under spirited use.
Yes. The CSLA is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the chain is generally durable if correct oil is used and changes are performed regularly.
Volkswagen specifies 5W‑40 synthetic oil meeting VW 502 00 (petrol) or 505 00 (petrol/diesel) standards. Always use OEM-approved oil and change every 15,000 km or annually to protect the turbo, chain, and fuel system.
Comprehensive technical documentation and regulatory references
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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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