AUDI A3 1.6TDI 77kW Engine CAY
Technical details
Engine code:
CAY
Brand:
Audi
Model:
A3
Year:
2009-2013
kW/PS:
77/105
AUDI A3 1.6TDI 77kW Engine CAY
Audi A3 1.6 TDI 77 kW CAY Engine Overview
The Audi A3 equipped with the 1.6 TDI CAY engine between 2009 and 2013 offers an excellent balance of fuel efficiency, reliability, and daily driving comfort. With an output of 77 kW (105 hp) and 250 Nm of torque, this turbocharged diesel engine is designed for economical operation without sacrificing the responsive feel that Audi drivers expect. It is especially popular among commuters and drivers looking for low running costs in a premium compact vehicle.
Engine Specifications Summary
| Specification | Details |
|---|---|
| Engine Type | Inline-4, turbocharged diesel |
| Displacement | 1.6 liters (1598 cc) |
| Power Output | 77 kW (105 hp) |
| Torque | 250 Nm |
| Fuel Type | Diesel |
| Injection System | Common Rail Direct Injection |
| Valvetrain | DOHC with 16 valves |
| Engine Code | CAY |
Key Features and Technologies
Turbocharged Efficiency
The CAY engine features a small variable-geometry turbocharger, providing quick response at low RPMs and maintaining consistent torque across a wide range. This helps deliver smooth acceleration and confident performance in urban and highway driving.
Low Fuel Consumption
With advanced fuel injection and efficient combustion, the 1.6 TDI engine can achieve fuel economy figures as low as 3.8–4.5 L/100 km, depending on driving conditions. It’s ideal for anyone seeking low-cost, long-distance motoring.
Common Rail Injection System
The high-pressure common rail system ensures precise fuel metering, allowing for quiet engine operation, improved throttle response, and reduced emissions.
Euro 5 Emissions Standard
Built to meet Euro 5 regulations, the CAY engine emits low levels of CO₂ and NOx, making it more environmentally friendly than many earlier diesel engines.
Durability and Proven Design
With proper maintenance, the CAY engine is known for long-lasting reliability, often exceeding 300,000 km in service life. It is a trusted choice in the used market.
Applications and Compatibility
| Audi Model | Model Years |
|---|---|
| Audi A3 8P (3-door, Sportback, Cabriolet) | 2009 – 2013 |
The engine was available with manual and S tronic automatic transmissions, and commonly featured in Attraction, Ambition, and Sport trims.
Why Choose the Audi A3 1.6 TDI CAY Engine?
Daily Efficiency, Premium Feel
It offers exceptional fuel economy while maintaining Audi’s characteristic refinement, ride comfort, and interior quality.
Practical Power for Everyday Use
With 250 Nm of torque, this engine delivers enough pulling power for daily commuting, family use, or light long-distance travel.
Environmentally Conscious Performance
Built to meet strict emission standards, this engine is cleaner than many older diesels and suitable for low-emission zones in many European cities.
Trusted and Serviceable
The CAY engine is widespread across VW Group vehicles, meaning parts are affordable and easy to find, and many mechanics are familiar with its service needs.
All used engines are sold with a 3-month warranty, which is valid if the engine is been installed and maintained according to our installation rules, which are provided together with the engine.
