Audi A4 2.0 TDI 105kW Engine (CAG) – Proven Diesel Performance with Lasting Value
Between 2007 and 2012, Audi equipped the A4 with the 2.0 TDI 105kW CAG engine, creating a practical and efficient sedan that delivers strong performance and long-term reliability. This 2.0-liter turbo diesel produces 143 hp and 320 Nm of torque—ideal for long motorway drives, daily commuting, or mixed urban use.
Built for Real-World Driving
Audi designed the CAG engine to handle everyday demands with confidence. Whether you’re navigating city traffic or cruising on the open road, it delivers steady torque, low fuel consumption, and refined power delivery that drivers appreciate over time.
The CAG Engine – A Dependable Part of Audi’s EA189 Family
As part of the well-known EA189 engine lineup, the CAG stands out for its efficiency, strong mid-range power, and straightforward maintenance. Here’s what defines this engine:
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105 kW (143 hp) output
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320 Nm of torque
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Turbocharged inline-four configuration
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Common rail direct injection
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DOHC, 16-valve layout
Audi built this engine to balance performance with fuel efficiency—making it one of the most widely used and trusted 2.0 TDIs on the market.
Responsive and Ready for the Road
Thanks to its 320 Nm of torque available from low RPM, the CAG engine responds quickly under acceleration. The turbocharger boosts mid-range performance, making highway overtakes, steep climbs, and fully loaded driving feel effortless.
Fuel-Efficient, Driver-Focused Performance
The 2.0 TDI CAG engine doesn’t just perform—it saves fuel while doing it. Audi’s common rail system enables clean, precise fuel injection, helping the engine burn efficiently and meet Euro 5 emissions standards. Many drivers regularly achieve fuel economy figures of 5–6 L/100km, depending on conditions and driving style.
Comfortable Driving, Backed by Diesel Strength
Audi matched the smooth nature of the CAG engine with a well-insulated and balanced A4 chassis. Drivers benefit from:
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Low noise and vibration
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Smooth, predictable throttle response
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Comfortable performance in both stop-and-go traffic and high-speed travel
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Consistent pulling power when fully loaded
The combination makes the A4 with this engine a great all-rounder for both short trips and long hauls.
Engineered for Longevity
Audi engineered the CAG engine for durability, making it a favorite among drivers who rack up serious mileage. Its cast-iron block, simple design, and wide availability of parts make it easy to maintain and repair. With regular servicing, many of these engines exceed 300,000 km without major issues.
Common Maintenance Highlights
Like most diesel engines, the CAG benefits from preventive maintenance. Keep an eye on:
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Timing belt changes (typically every 180,000 km)
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EGR valve and DPF cleaning or replacement
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Turbo inspection after high mileage
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Oil changes with quality low-ash oils every 15,000 km or less
Tackling these tasks early helps the engine stay strong and reliable for the long term.
Technical Specifications – Audi A4 2.0 TDI (2007–2012)
| Specification | Details |
|---|---|
| Engine Code | CAG |
| Engine Type | Inline-4, turbocharged diesel |
| Displacement | 2.0L (1968cc) |
| Power Output | 105 kW (143 hp) |
| Torque | 320 Nm |
| Fuel Type | Diesel |
| Injection System | Common rail direct injection |
| Turbocharged | Yes |
| Valvetrain | DOHC, 16 valves |
Where Else You’ll Find the CAG Engine
Audi used this engine primarily in the A4 B7 and B8 models, but it also appeared in some VW Passat and Škoda Superb variants, depending on the market. Its wide application ensures excellent parts support and broad repair knowledge.
Why the CAG Engine Makes Sense
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Strong torque and reliable diesel power
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Great balance of fuel economy and performance
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Proven service life with proper maintenance
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Easy access to affordable parts
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Trusted by drivers and mechanics across Europe
Final Thoughts – A Reliable Diesel for Everyday Use
The Audi A4 2.0 TDI with the CAG engine delivers consistent, no-nonsense performance. It’s not just efficient—it’s dependable, capable, and well-suited for drivers who value longevity and low running costs. Whether you’re replacing your engine or keeping your current A4 in top shape, the CAG offers solid diesel value backed by Audi engineering.
Need a Replacement CAG Engine for Your Audi A4?
We supply tested, road-ready used engines including the 105kW CAG unit. Contact us today for pricing, availability, and expert advice to keep your A4 performing at its best.
