The Volkswagen CBDA 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 part of VW's effort to downsize while maintaining performance, delivering outputs around 90 kW (122 PS) and 200 Nm of torque, providing strong low — rpm pull for everyday drivability.
Fitted to models such as the Mk5 and Mk6 Golf, Jetta, and Scirocco, th…
Production years 2008–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen CBDA is a 1,390 cc inline‑four turbocharged petrol engineered for compact hatchbacks and sedans (2008-2015). It combines direct fuel injection (TSI) with a single turbocharger to deliver responsive acceleration and improved fuel efficiency. Designed to meet Euro 5 standards, it balances sporty performance with everyday economy.
| Parameter | Value | Source |
|---|---|---|
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 | 90 kW (122 PS) | |
Torque | 200 Nm @ 1,500–3,500 rpm | |
Fuel system | Gasoline direct injection (Bosch MED 17.5) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo (IHI or Garrett) | |
Timing system | Chain-driven | |
Oil type | VW 502 00 / 504 00 (SAE 5W‑30) | |
Dry weight | Approx. 120 kg |
The Volkswagen CBDA was used across Volkswagen's A5 platform with transverse mounting. This engine received platform-specific adaptations-standardised ECU mapping for Golf/Jetta and revised intake manifolds for Scirocco-and no major facelift revisions affecting core compatibility occurred during its production. All adaptations are documented in OEM technical bulletins.
The CBDA's primary reliability risk is high-pressure fuel pump (HPFP) failure, with elevated incidence in vehicles using lower-grade fuel or exceeding service intervals. Internal Volkswagen service data indicates a notable number of replacements under warranty, while owner reports frequently cite drivability issues preceding failure. Fuel quality and maintenance adherence make preventative measures critical.
Analysis derived from Volkswagen technical bulletins (2008-2015) and aggregated owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
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The CBDA is generally robust with proper care. Its main weakness is the high-pressure fuel pump, which can fail prematurely with poor fuel or neglected servicing. Using the correct oil (VW 502/504) and premium fuel, along with timely HPFP replacement if issues arise, allows for excellent long-term reliability.
The most frequent issues are high-pressure fuel pump (HPFP) failure, carbon buildup on intake valves, turbo actuator/solenoid faults causing boost issues, and coolant leaks from the plastic thermostat housing. These are well-documented in VW service bulletins and owner communities.
The 1.4 TSI (122 PS) CBDA engine was used in the Volkswagen Golf Mk5 (2008-2009), Golf Mk6 (2009-2013), Jetta Mk5 (2008-2010), and Scirocco Mk3 (2008-2015). It was not used in Audi, Seat, or Skoda models, which had different 1.4 TSI variants.
Yes, the CBDA responds well to ECU remapping. Stage 1 tunes can safely increase power to around 150-160 PS and torque to 250 Nm, leveraging the stock turbo and internals. Supporting modifications like an upgraded intercooler are recommended for optimal reliability and performance gains.
Official combined figures are around 6.0 L/100km (47 mpg UK). Real-world consumption typically ranges from 7.0-8.5 L/100km (33-40 mpg UK) in mixed driving, depending heavily on driving style. Highway cruising can yield figures closer to 5.5 L/100km (51 mpg UK).
Yes. The CBDA is an interference engine. If the timing chain were to fail (though rare), the pistons would collide with the open valves, causing significant internal engine damage. Fortunately, the chain is very durable with proper oil maintenance.
Volkswagen mandates oil meeting the VW 502 00 or 504 00 specification, typically a 5W-30 synthetic. Using the correct oil is crucial for protecting the turbocharger, preventing carbon buildup, and ensuring the longevity of the high-pressure fuel pump. Change intervals should not exceed 15,000 km or 1 year.
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Regulation (EC) No 715/2007
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