The Volkswagen BAR is a 1,390 cc, inline‑four turbocharged petrol engine produced between 2008 and 2014. It features a dual overhead camshaft (DOHC), four valves per cylinder, and a single turbocharger, delivering a responsive and efficient power profile for its class. Peak output is rated at 90 kW (122 PS) and 200 Nm of torque, providing sprightly performance in lightweight applications.
Fitted primarily to the Polo Mk5 and Ibiza Mk4, the BAR was engineered for urban agi…
Volkswagen
Production years 2008–2014 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/8765).
The Volkswagen BAR is a 1,390 cc inline‑four turbocharged petrol engineered for supermini applications (2008-2014). It combines direct fuel injection with a single turbocharger to deliver responsive low-end torque and frugal fuel consumption. Designed to meet Euro 5 standards, it prioritizes urban drivability and emissions compliance.
| 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 | Bosch Motronic MED17.5, direct injection (TSI) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo (IHI VF33) | |
Timing system | Chain‑driven camshafts | |
Oil type | VW 504 00 / 507 00 (SAE 5W‑30) | |
Dry weight | 109 kg |
The Volkswagen BAR was used across Volkswagen's A0 platform with transverse mounting. This engine received platform-specific adaptations-minor ECU mapping for the SEAT Ibiza-but no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
The BAR's primary reliability risk is high-pressure fuel pump (HPFP) failure, with elevated incidence in high-mileage or poorly maintained examples. Volkswagen internal data indicates this is a common wear item after 80,000 km, while UK DVSA records show a correlation with use of low-quality fuel. Extended use of substandard fuel increases the risk of pump seizure, making fuel quality and maintenance critical.
Analysis derived from Volkswagen technical bulletins (2008-2014) and UK DVSA failure statistics (2010-2023). 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 BAR is generally reliable if maintained meticulously. Its main weakness is the HPFP, which often fails after 80,000 km. With proactive HPFP replacement, use of premium fuel, and regular carbon cleaning, these engines can be very dependable and exceed 200,000 km.
The most frequent issues are HPFP failure (causing misfires), severe intake valve carbon buildup (causing rough idle), and turbo wastegate rattle. Timing chain tensioner wear is also a concern on high-mileage examples. These are well-documented in Volkswagen service information.
The BAR 1.4 TSI was primarily used in the Volkswagen Polo Mk5 (6R) from 2009 to 2014. It was also fitted to the SEAT Ibiza Mk4 (6J) and Córdoba Mk2 (6J) from 2008 to 2014. It was not used in Skoda or Audi models.
Yes, moderately. The BAR responds well to ECU remapping, with safe gains of 20-30 kW (25-40 PS) on stock internals. Popular upgrades include a larger intercooler and downpipe, which can push power towards 150 PS. It's a popular choice for mild tuning.
Excellent for a turbo petrol. In a Polo, expect real-world figures of 6.0-7.0 L/100km (40-47 mpg UK) on a mixed cycle. Highway cruising can return under 5.5 L/100km (50+ mpg UK). Its efficiency is a key selling point.
Yes. The BAR is an interference design. If the timing chain were to fail catastrophically (e.g., tensioner failure leading to chain jump), the pistons would collide with the valves, causing severe engine damage. Regular inspection of the tensioner is advised.
Volkswagen specifies oil meeting the VW 504 00 / 507 00 standard, typically a 5W-30 fully synthetic. Using the correct specification is vital for protecting the turbocharger, timing chain, and fuel system. Change intervals should not exceed 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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