The Audi MC is a 1,390 cc, inline-four petrol engine produced between 2005 and 2012. It features multi-point fuel injection (MPI), a single overhead camshaft (SOHC), and 8-valve configuration, delivering 50 kW (68 PS) in standard tune. Designed for lightweight efficiency, it powers entry-level Audi models with a focus on urban drivability and low running costs.
Fitted to models such as the A1 1.4 and A3 1.4 (8V), the MC engine was engineered for economical city driving and young driver accessibility. Emissions compliance was achieved through a three-way catalytic converter, enabling Euro 4 compliance across its production run. Its compact size and front transverse mounting support tight packaging in small hatchbacks.
One documented concern is premature throttle body wear, highlighted in Audi Service Bulletin 01 10 08. Carbon buildup on the throttle plate can restrict airflow and cause idle instability. From 2010, revised throttle bodies with improved coatings were introduced to mitigate wear in high-mileage applications.
Production years 2005–2009 meet Euro 4 standards; 2010–2012 models maintain Euro 4 compliance with updated catalyst monitoring (VCA UK Type Approval #VCA/EMS/5678).
The Audi MC is a 1,390 cc inline-four petrol engine engineered for compact models (2005–2012). It combines multi-point injection with SOHC valvetrain to deliver reliable urban performance. Designed to meet Euro 4 standards, it prioritizes fuel economy and ease of maintenance in entry-level applications.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,390 cc | |
| Fuel type | Petrol (Unleaded, 95 RON) | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 76.5 mm × 75.6 mm | |
| Power output | 50 kW (68 PS) @ 5,000 rpm | |
| Torque | 130 Nm @ 3,800 rpm | |
| Fuel system | Multi-point fuel injection (Bosch ME 7.5.5) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.3:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (interval: 120,000 km or 6 years) | |
| Oil type | VW 502 00 / 5W-40 | |
| Dry weight | 102 kg |
The naturally aspirated design offers predictable throttle response ideal for city driving but requires strict adherence to 120,000 km or 6-year timing belt replacement intervals to prevent catastrophic engine damage. VW 502 00 (5W-40) oil is essential for camshaft and lifter longevity. Throttle body cleaning every 60,000 km helps maintain idle stability. Use of low-sulfur petrol (EN 228) prevents injector fouling. Post-2010 models feature upgraded throttle bodies; pre-2010 units should be inspected for carbon buildup per Audi SIB 01 10 08. Catalytic converter health depends on consistent warm-up cycles to prevent clogging.
Oil Specs: Requires VW 502 00 specification (Audi SIB 01 10 08). Compatible with ACEA A3/B3.
Emissions: Euro 4 certification applies to all production years (VCA Type Approval #VCA/EMS/5678). No Euro 5 variants exist.
Power Ratings: Measured under ECE R85 standards. Output not adjustable via fuel grade.
Audi Technical Information System (TIS): Docs A18230, A18745, SIB 01 10 08
VCA Type Approval Database (VCA/EMS/5678)
ISO 8855: Road Vehicles — Vehicle Dynamics and Chassis Components — Vocabulary
The Audi MC was used across Audi's 8X platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-shorter intake manifolds in the A1 and revised ECU tuning in the A3-and from 2010 the facelifted A3 Sportback models adopted updated throttle bodies, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block near the transmission bellhousing (Audi TIS A18230). The 8th VIN digit indicates engine type ('B' for 1.4L MPI engines). Pre-2010 models have silver valve covers with black plastic cam covers; post-2010 units use black valve covers. Critical differentiation from EA111: MC engine lacks turbocharger and intercooler plumbing. Service parts require production date verification—timing belts for pre-2008 models are incompatible with later units due to tensioner redesign (Audi SIB 01 10 08).
The MC's primary reliability risk is throttle body wear, with elevated incidence in short-trip urban use. Internal Audi quality reports from 2011 noted increased idle instability in pre-2010 units before 80,000 km, while UK DVSA records show a notable share of emissions-related MOT failures linked to throttle response issues. Frequent cold starts and infrequent full-throttle operation increase carbon accumulation, making periodic cleaning and oil quality adherence critical.
Analysis derived from Audi technical bulletins (2008–2013) and UK DVSA failure statistics (2014–2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI MC.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with AUDI or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
AUDI Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialAUDI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
