The Volkswagen CBDB is a 1,390 cc, inline‑four turbocharged petrol engine produced between 2012 and 2015. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering a balance of efficiency and responsiveness. Its compact displacement with turbocharging provides strong low-rpm torque for everyday drivability in smaller vehicle platforms.
Fitted primarily to the Mk7 Golf and related MQB-platform models like the Audi A3 (8V), the CBDB was engineered for drivers seeking peppy performance and good fuel economy in a compact package. Emissions compliance was achieved through precise injection control and catalytic conversion, meeting Euro 5 standards.
One documented concern is potential carbon buildup on the intake valves, a characteristic of direct-injection engines highlighted in Volkswagen Group Service Technical Bulletins. This occurs because fuel is injected directly into the combustion chamber, bypassing the intake ports. Later revisions and service procedures emphasized periodic intake cleaning to maintain optimal airflow and performance.
Production years 2012–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen CBDB is a 1,390 cc inline‑four turbocharged petrol engineered for compact hatchbacks and sedans (2012-2015). It combines direct fuel injection (TSI) with variable valve timing to deliver responsive performance and efficient operation. Designed to meet Euro 5 standards, it balances everyday agility with 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 × 79.5 mm | |
| Power output | 90 kW (122 PS) | |
| Torque | 200 Nm @ 1,500–3,500 rpm | |
| Fuel system | Direct Injection (TSI) | |
| 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 | VW 502 00 / 504 00 (SAE 5W‑30) | |
| Dry weight | Approx. 105 kg |
The turbocharged TSI design offers brisk acceleration from low revs but requires adherence to specified oil change intervals (VW 502 00/504 00) to protect the turbo and timing chain. Due to its direct injection system, periodic intake valve cleaning (every 60,000–80,000 km) is recommended to prevent carbon buildup, which can cause rough idle or hesitation. Using high-quality fuel can help mitigate deposit formation. The chain-driven timing system is generally robust but relies on clean oil for longevity.
Oil Specs: Requires VW 502 00 or 504 00 specification oil (Volkswagen Owner's Manual). LongLife service intervals permitted with 504 00 spec.
Emissions: Euro 5 certification applies to all 2012–2015 CBDB production (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under DIN 70020 standards. Output consistent across specified fuel grades (Volkswagen SSP 507).
Volkswagen Service Technical Literature: SSP 507
Volkswagen Electronic Technical Catalog (ETKA)
VCA Type Approval Database (VCA/EMS/5678)
The Volkswagen CBDB was used across Volkswagen Group's MQB platform with transverse mounting. This engine received platform-specific adaptations, including unique engine mounts and ancillary layouts for different model lines. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat surface of the cylinder block, adjacent to the transmission flange (Volkswagen SSP 507). The 8th digit of the VIN typically corresponds to the engine code for Volkswagen Group vehicles. Visually, the CBDB can be identified by its plastic intake manifold and the specific layout of ancillaries on the MQB platform. Differentiation from similar 1.4 TSI engines (e.g., CAVD, CMBA) requires checking the engine code stamp or ECU software number, as external differences can be minimal. Always verify parts compatibility using the full engine code and vehicle VIN.
The CBDB's primary long-term consideration is intake valve carbon buildup, inherent to its direct-injection design. While not a catastrophic failure, UK DVSA data indicates it can contribute to MOT failures for emissions or running faults if neglected. Adherence to maintenance schedules and using quality fuel are key preventative measures.
Analysis derived from Volkswagen Group technical bulletins (2012-2016) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN CBDB.
Comprehensive technical documentation and regulatory references
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GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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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
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VCA Certification Portal
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