The Volkswagen ATQ is a 2,771 cc, V6 petrol engine produced between 2001 and 2005. It features a double overhead camshaft (DOHC) with five valves per cylinder and multi-point fuel injection. This 30-valve configuration was engineered to deliver a blend of smooth power delivery and refined high-RPM performance for premium compact applications.
Fitted primarily to the Mk4 Golf R32 (1J) and Bora R32 (1J), the ATQ engine offered a significant performance upgrade over four-cylinder variants. It was designed for enthusiasts seeking a linear powerband and a distinctive exhaust note, paired with all-wheel drive for enhanced traction. Emissions compliance for most units was achieved to meet Euro 3 standards through precise engine management and catalytic converter technology.
One documented service concern is premature wear of the secondary air injection pump, which can lead to increased emissions and check engine light illumination. This issue, referenced in Volkswagen Group Service Technical Bulletin STB‑03‑08‑01, is often attributed to moisture ingress and electrical component failure. Later production runs incorporated revised pump housings for improved environmental sealing.
Volkswagen
Production years 2001–2003 meet Euro 3 standards; 2004–2005 models may have Euro 4 compliance depending on market (VCA UK Type Approval #VCA/EMS/7890).
The Volkswagen ATQ is a 2,771 cc V6 naturally aspirated petrol engine engineered for premium compact performance applications (2001-2005). It combines DOHC 30-valve architecture with multi-point fuel injection to deliver smooth, linear power and a high-revving character. Designed to meet Euro 3 (and some market-specific Euro 4) standards, it prioritises driver engagement and acoustic refinement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,771 cc | |
| Fuel type | Petrol | |
| Configuration | V6, DOHC, 30‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.5 mm × 86.4 mm | |
| Power output | 177 kW (241 PS) | |
| Torque | 285 Nm @ 2,500 rpm | |
| Fuel system | Bosch Motronic MPI | |
| Emissions standard | Euro 3 (pre‑2004); Euro 4 depending on market | |
| Compression ratio | 10.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain (requires periodic inspection) | |
| Oil type | VW 502 00 (SAE 5W‑40) | |
| Dry weight | 162 kg |
The DOHC 30-valve V6 design offers smooth, linear power ideal for spirited driving but demands more diligent maintenance than four-cylinder engines. Strict adherence to 15,000 km oil change intervals using VW 502 00 specification oil is critical to prevent timing chain and hydraulic lifter wear. The interference design means timing chain failure can cause catastrophic engine damage; inspection and replacement per service schedule is mandatory. The secondary air injection pump is a known failure point; replacement with the latest OEM part per STB-03-08-01 is recommended at first sign of fault codes. Fuel injectors should be cleaned every 60,000 km to maintain optimal spray patterns.
Oil Specs: Requires VW 502 00 (5W-40) specification (Volkswagen Owner's Manual). Compatible with ACEA A3/B4 standards.
Emissions: Euro 3 certification applies to pre-2004 models only (VCA Type Approval #VCA/EMS/7890). Some 2004-2005 models meet Euro 4 depending on market.
Power Ratings: Measured under DIN 70020 standards. Output is consistent across model range (Volkswagen SSP 265).
Volkswagen Service Technical Literature: SSP 265, STB 03-08-01
VCA Type Approval Database (VCA/EMS/7890)
DIN 70020 Engine Power Certification Standards
The Volkswagen ATQ was used across Volkswagen's premium compact platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for the Golf R32 versus the Bora R32-creating no significant interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the gearbox flange (Volkswagen SSP 265). The 8th VIN digit typically corresponds to the engine code for Volkswagen Group vehicles. Visually, the ATQ is identifiable by its distinctive V6 intake manifold and "VR6" branding on the cam covers. Critical differentiation from similar 2.8L VR6 engines (e.g., AMX, BFH): The ATQ produces 241 PS and was used exclusively in the R32 models, whereas the AMX produces 150 PS and the BFH produces 200 PS. Service parts for the secondary air system are specific to the ATQ and not interchangeable with other variants without verification.
The ATQ's primary reliability risk is secondary air injection pump failure, with elevated incidence in high-humidity or coastal environments. Internal Volkswagen engineering reports indicated a notable failure rate before 100,000 km, while owner feedback frequently cites check engine light codes P0411 or P0418 as the most common symptom. Environmental exposure and electrical load make using the latest OEM-specified pump critical.
Analysis derived from Volkswagen technical bulletins (2003-2007) and aggregated owner repair data (2007-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN ATQ.
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DVLA: Engine Changes & MoT
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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
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