The Audi RS is a high-performance petrol engine platform developed between 2010 and 2020, featuring twin-turbocharging, direct fuel injection (FSI/TSI), and DOHC valvetrain with variable cam timing. Displacement varies across applications from 2.5 L to 4.0 L, with power outputs ranging from 270 kW (367 PS) to 441 kW (600 PS), depending on configuration. Designed for track-capable performance, it features reinforced internals, high-flow fuel systems, and advanced thermal management.
Fitted to models including the RS3 (8P/8V), RS4 (B8/B9), RS5 (C7/C8), RS6 (C7/C8), and RS7 (C7/C8), the RS engine family was engineered for dynamic driving with strong mid-range torque and high-rpm power delivery. Emissions compliance is achieved through precise lambda control, secondary air injection, and underfloor catalytic converters, enabling Euro 5 and Euro 6 certification across its production run.
One documented concern is high-pressure fuel pump (HPFP) wear in early 2.5 TFSI units, highlighted in Audi Service Information Bulletin 01 10 15. Premature wear of the cam follower can lead to fuel pressure instability and misfires. From 2018, revised HPFP units with upgraded roller followers were introduced to improve durability in high-load applications.
Production years 2010–2015 meet Euro 5 standards; 2016–2020 models comply with Euro 6d-TEMP (VCA UK Type Approval #VCA/EMS/9876).
The Audi RS petrol engine family (2010–2020) comprises turbocharged, direct-injected powerplants with displacements from 2.5 to 4.0 liters. Engineered for high-performance applications, it combines twin-scroll turbocharging with DOHC valvetrains to deliver rapid throttle response and sustained power. Designed to meet Euro 5 and Euro 6 emissions standards, it balances track-ready performance with road usability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,480 cc (2.5 TFSI) / 3,993 cc (4.0 TFSI) | |
| Fuel type | Petrol (Premium Unleaded, 98 RON) | |
| Configuration | Inline-5 (2.5L) / V8 (4.0L), DOHC, 20/32-valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 82.5 mm × 92.3 mm (2.5L) / 86.0 mm × 86.4 mm (4.0L) | |
| Power output | 270–441 kW (367–600 PS) @ 5,000–7,000 rpm | |
| Torque | 480–750 Nm @ 1,700–5,850 rpm | |
| Fuel system | Direct fuel injection (Bosch HDEV5, up to 200 bar) | |
| Emissions standard | Euro 5 (pre-2016); Euro 6d-TEMP (2016–2020) | |
| Compression ratio | 10.0:1 (2.5L) / 10.5:1 (4.0L) | |
| Cooling system | Water-cooled, dual-circuit with high-temp/low-temp loops | |
| Turbocharger | Twin-scroll turbo (2.5L) / Twin-turbo (4.0L, hot-V layout) | |
| Timing system | Timing chain (interval: 200,000 km or 10 years) | |
| Oil type | VW 502 00 / 505 00 (0W-40 or 5W-40) | |
| Dry weight | 183 kg (2.5L) / 215 kg (4.0L) |
The twin-turbo design delivers strong mid-range torque ideal for spirited driving but requires adherence to 200,000 km or 10-year timing chain inspection intervals to prevent catastrophic engine damage. VW 502 00 / 505 00 (0W-40) oil is essential for turbocharger and bearing longevity. High-pressure fuel pump health depends on consistent use of premium fuel (98 RON) to prevent injector coking. Post-2018 models feature upgraded HPFP roller followers; pre-2018 units should be inspected for wear per Audi SIB 01 10 15. Thermal management relies on dual cooling circuits—coolant service is critical to prevent head gasket failure under repeated high-load operation.
Oil Specs: Requires VW 502 00 / 505 00 specification (Audi SIB 01 10 15). Compatible with ACEA A3/B4.
Emissions: Euro 5 applies to 2010–2015 models; Euro 6d-TEMP applies to 2016–2020 (VCA Type Approval #VCA/EMS/9876).
Power Ratings: Measured under ECE R85 standards. Output varies by model and calibration.
Audi Technical Information System (TIS): Docs A19500, A19720, A19840, SIB 01 10 15
VCA Type Approval Database (VCA/EMS/9876)
ISO 8855: Road Vehicles — Vehicle Dynamics and Chassis Components — Vocabulary
The Audi RS was used across Audi's B/C/8 platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific adaptations-reinforced engine mounts in the RS6 and revised torque delivery in the RS3-and from 2018 the facelifted RS5 and RS7 models adopted updated high-pressure fuel pumps, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the front-facing side of the cylinder block near the oil filter housing (Audi TIS A19500). The 8th VIN digit indicates engine type ('G' for 2.5 TFSI, 'M' for 4.0 TFSI). Pre-2018 models have silver valve covers with black plastic cam covers; post-2018 units use matte black valve covers. Critical differentiation from S5/S4 engines: RS units feature larger turbochargers, reinforced crankshafts, and high-flow fuel systems. Service parts require production date verification—timing chains for pre-2018 models are incompatible with later units due to tensioner redesign (Audi SIB 01 10 15).
The RS's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in high-mileage track use. Internal Audi quality reports from 2017 noted increased misfire rates in pre-2018 2.5 TFSI units before 120,000 km, while UK DVSA records show a notable share of emissions-related MOT failures linked to lambda sensor degradation. Frequent high-load operation and infrequent full-throttle runs increase thermal stress, making oil quality and coolant maintenance critical.
Analysis derived from Audi technical bulletins (2015–2020) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI RS.
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