Audi A8 4.0 TFSI Engine For sale
Product Overview
For sale is a complete Audi A8 4.0-litre TFSI engine, code CTG, manufactured in 2015 and recording just 57 kilometres — factory commissioning mileage only. This is the twin-turbocharged V8 petrol engine fitted to the Audi A8 4.0 TFSI, producing 320 kW (435 horsepower) and 600 Nm of torque, and is supplied complete with all attachments as shown in the listing photographs. At 57 kilometres, every component of this engine is in a condition effectively indistinguishable from new.
The CTG-engined Audi A8 sits at the top of the D4-generation A8’s petrol range — below the S8’s peak output but sharing the same fundamental 4.0-litre biturbo V8 architecture. It is one of the most refined and capable V8 engines fitted to a production executive saloon of its era, and a 57km example with all attachments intact represents an extraordinarily rare opportunity in the secondary market.
Engine Specification
| Specification | Detail |
|---|---|
| Engine Code | CTG |
| Application | Audi A8 4.0 TFSI (D4 / 4H Chassis) |
| Configuration | 4.0-Litre Twin-Turbocharged V8 Petrol (TFSI) |
| Displacement | 3,993 cc |
| Power Output | 320 kW / 435 hp |
| Torque | 600 Nm |
| Year of Manufacture | 2015 |
| Recorded Mileage | 57 km |
| Supply | Complete – All Attachments Included |
| Condition | Effectively As-New – Factory Condition Throughout |
About the Audi A8 CTG 4.0 TFSI Engine
The Audi CTG is a twin-turbocharged 4.0-litre V8 TFSI unit from Volkswagen Group’s EA824 engine family — the direct-injection, biturbo V8 architecture shared across Audi and Porsche’s high-performance applications. In the D4-generation A8 4.0 TFSI, the CTG produces 320 kW (435 hp) and 600 Nm, placing it between the standard A8 six-cylinder variants and the S8’s higher output version of the same platform.
The 4.0 TFSI’s twin-turbo layout — with both turbochargers positioned within the V of the engine in a hot-vee configuration — provides rapid spool-up and excellent mid-range torque delivery. Combined with cylinder deactivation technology that allows the engine to run on four cylinders under light loads, the CTG delivers the breadth of performance and refinement expected in Audi’s flagship saloon while maintaining real-world fuel efficiency that a naturally aspirated eight-cylinder of comparable output could not achieve.
The D4 Audi A8 with the 4.0 TFSI CTG engine is one of the most complete luxury executive cars of its generation — providing near-silent, effortless high-speed performance that is uniquely consistent with the A8’s positioning as a flagship saloon. A 57km, 2015 example with all attachments complete is a genuinely exceptional find for any owner or workshop requiring a CTG replacement at maximum quality.
Ideal For
- Audi A8 D4 4.0 TFSI owners (CTG)requiring a near-new engine replacement following failure, turbocharger damage, chain failure, or mechanical issues
- Audi specialist workshops sourcing a 57km CTG engine for a customer replacement at the highest available condition level
- Insurance and high-value accident repair specialists requiring a near-new, correct-specification 4.0 TFSI V8 for a D4 A8 repair
- Buyers seeking new-Audi-dealer-equivalent engine condition at a meaningful saving to official supply pricing
- Performance tuners working with the EA824 4.0 TFSI platform who require a near-new core for a high-output build
Purchasing & Enquiries
This Audi A8 4.0 TFSI engine, code CTG, is available for immediate sale. It records only 57 kilometres, was manufactured in 2015, and is supplied complete with all attachments as shown in the photographs.




















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