The Audi BRB is a 1,968 cc, inline-four turbo-diesel engine produced between 2011 and 2018. It features common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), delivering 120 kW (163 PS) and 380 Nm of torque. High-pressure fuel precision enables strong low-rpm pulling power ideal for dynamic driving and highway overtaking.
Fitted to models such as the A3 (8V), A4 (B8/B8.5), and Q5 (8R), the BRB engine was engineered for enhanced performance and drivability over lower-output variants. Emissions compliance is achieved via exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and in certain markets, selective catalytic reduction (SCR), meeting Euro 5 standards across its production run.
One documented reliability concern is premature high-pressure fuel pump (HPFP) wear, particularly in early production units. This issue, referenced in Audi Technical Service Bulletin 20 10 83, is linked to fuel contamination and inadequate lubrication under ultra-low-sulfur diesel conditions. From 2014, revised pump calibration and updated fuel filtration were implemented to enhance durability.
All BRB models comply with Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Audi BRB is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2011–2018). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-end torque and strong mid-range performance. Designed to meet Euro 5 emissions standards, it balances sporty character with real-world efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,968 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (VGT) | |
| Bore × stroke | 81.0 mm × 95.5 mm | |
| Power output | 120 kW (163 PS) @ 3,250–4,200 rpm | |
| Torque | 380 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CRS 2-20 common-rail (up to 1,600 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (Garrett GT1749V) | |
| Timing system | Timing belt (service interval: 180,000 km or 10 years) | |
| Oil type | VW 504 00 / 507 00 (SAE 5W-30) | |
| Dry weight | 145 kg |
The VGT setup provides linear boost delivery ideal for dynamic driving but requires strict adherence to 15,000 km service intervals to prevent EGR and DPF clogging. VW 504 00/507 00 oil is essential for injector and turbo longevity under high thermal loads. Extended idling and short trips increase soot accumulation, necessitating active regeneration cycles. The Bosch HPFP is sensitive to fuel quality; use only EN 590 ultra-low-sulfur diesel (ULSD) to prevent premature wear. Post-2014 models include updated fuel filter housings and revised ECU mapping to improve pump reliability. DPF regeneration faults are common if long-distance driving is infrequent.
Oil Specs: Requires VW 504 00 / 507 00 (5W-30) specification (Audi SIB 20 11 17). Not compatible with ACEA A/B standards.
Emissions: All BRB models comply with Euro 5 emissions standards (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under SAE J1349. Output maintained across EU markets with EN 590 fuel (Audi TIS Doc. A32052).
Audi Technical Information System (TIS): Docs A32052, A32512, SIB 20 10 83, SIB 20 11 17
VCA Type Approval Database (VCA/EMS/7890)
SAE International: J1349 Engine Power Test Code
The Audi BRB was used across Audi's 8V/B8/B8.5/8R platforms with transverse mounting in front-wheel-drive variants and longitudinal in quattro models. This engine received platform-specific adaptations-shorter intake manifolds in the A3 and revised exhaust routing in the A4 B8.5-and from 2014 the facelifted Q5 8R.5 adopted revised EGR cooling, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front of the cylinder block near the timing belt cover (Audi TIS A32052). The 8th VIN digit indicates engine type ('R' for BRB series). Pre-2014 models have a silver timing cover and black intake manifold; post-2014 units use black covers. Critical differentiation from earlier BES/BKE engines: BRB uses higher fuel rail pressure and revised ECU calibration for increased torque. Service parts require model-year verification—timing belts for pre-2014 A4 B8 are not interchangeable with B8.5 models due to tensioner design changes (Audi SIB 20 11 17).
The BRB's primary reliability risk is high-pressure fuel pump degradation, with elevated incidence in mixed urban driving. Internal Audi quality reports from 2013 noted a significant share of pre-2014 engines requiring HPFP replacement before 150,000 km, while UK DVSA MOT data links EGR-related faults to frequent short trips. Extended idling and low-quality fuel increase soot and pump wear, making fuel quality and service adherence critical.
Analysis derived from Audi technical bulletins (2011–2018) and UK DVSA failure statistics (2014–2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI BRB.
Comprehensive technical documentation and regulatory references
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AUDI Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
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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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