Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective and reliable solution for your executive saloon or estate.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,200 to £5,500 [EM-QUOTE]
Used from £800 · Reconditioned from £2,000 · Common codes: CDNB, CDNC, CYRB, DMTC, DKNA, DLHA
From £800
Tested, bare/short engine
From £2,000
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Replacement Engineto Finding the Best Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi A6 2.0 TFSI / 40 TFSI / 45 TFSI - Engine History & Specs at a Glance
When the 2.0 TFSI engine was introduced to the A6 lineup, it provided a highly efficient, turbocharged petrol alternative to the dominant diesel variants, later evolving into the 40 TFSI and 45 TFSI badges in the C8 generation with mild-hybrid technology to meet stricter emissions standards while maintaining strong performance.
Variant HistoryAudi A6 2.0 TFSI / 40 TFSI / 45 TFSI - Engine History & Specs at a Glance
When the 2.0 TFSI engine was introduced to the A6 lineup, it provided a highly efficient, turbocharged petrol alternative to the dominant diesel variants, later evolving into the 40 TFSI and 45 TFSI badges in the C8 generation with mild-hybrid technology to meet stricter emissions standards while maintaining strong performance.
Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI
Fuel TypePetrol (with 12V MHEV on C8 models)
Engine Size Range2.0L
Power Output Range204-252hpEngine History Timeline
CDNB (2.0L TFSI 211hp) introduced in the C7 generation, featuring EA888 Gen 2 architecture with direct injection and turbocharging.
CDNC (2.0L TFSI 252hp) launched, offering higher output for the upper trim levels of the C7 A6.
CYRB (2.0L TFSI 252hp) introduced with the C7 facelift, transitioning to the more reliable EA888 Gen 3 architecture with improved thermal management and revised timing components.
DMTC (2.0L TFSI 204hp) and DKNA/DLHA (2.0L TFSI, 245hp) launched in the C8 generation, rebranded as 40 TFSI and 45 TFSI respectively, incorporating 12V mild-hybrid (MHEV) systems for enhanced efficiency.
Key Specs Snapshot
Fuel TypePetrol (with 12V MHEV on C8 models)Engine Size Range2.0LPower Output Range204-252hpYears Produced2011-presentEvery engine fitted to the Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI is covered below, with UK rebuilt pricing and known failure points.
Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Codes - Specifications & Replacement CostAudi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Codes - Specifications & Replacement Cost
2.0L Petrol (2011-2014)
Power Output211hpYears Fitted2011-2014
Compatible Trim Levels
- 2.0 TFSI SE
- 2.0 TFSI Sport
- 2.0 TFSI S line
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£800-£1,800
Reconditioned
Addressed known issues, tested
£2,000-£3,800
Rebuilt
Full teardown, upgraded internals
£3,200-£5,500
Common Failure
Timing chain tensioner wear and excessive oil consumption due to early EA888 Gen 2 piston ring design.
The Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI is a highly capable executive petrol engine, but the EA888 family has well-documented wear patterns depending on the generation. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure point, plus a minimum 12-month unlimited-mileage warranty.
Why the Audi A6 2.0 TFSI (CDNB/CDNC) Wears Prematurely
Affected Vehicles
Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI (CDNB, CDNC, 2011-2014)
Typical Failure Mileage
60,000-90,000 miles
Root Cause
Early EA888 Gen 2 tensioners lack sufficient holding pressure, allowing the chain to stretch. Combined with early piston ring designs, this leads to oil consumption and potential valve damage.
Why It Happens
Early EA888 Gen 2 tensioners lack sufficient holding pressure, allowing the chain to stretch. Combined with early piston ring designs, this leads to oil consumption and potential valve damage.
Dealer (parts + labour)
£1,200-£1,800
Specialist (parts + labour)
£800-£1,200
What it involves
Replacement of the chain, guides, and revised tensioner.
Suitability
Highly effective if caught early before valve contact occurs.
1 - 2 daysDealer (parts + labour)
£5,000-£7,000
Specialist (parts + labour)
£3,200-£5,500 [EM-QUOTE]
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
Required if the engine has already suffered interference damage or severe oil starvation.
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor/Preventative: Timing chain & tensioner kit replacement Minor | £1,200-£1,800 | £800-£1,200 | Replacement of the chain, guides, and revised tensioner. | Highly effective if caught early before valve contact occurs. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £5,000-£7,000 | £3,200-£5,500 [EM-QUOTE] | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | Required if the engine has already suffered interference damage or severe oil starvation. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical 2011-2014 Audi A6 2.0 TFSI is worth ~£4,000-£8,000 [THIRD-PARTY]. At this value, a full rebuilt unit may approach or exceed 60% of the vehicle's value. If the lowest viable replacement cost exceeds approximately 60% of the vehicle's current market value, evaluate scrap value before committing.
Our Recommendation
Our Recommendation
If you hear a cold-start rattle or notice blue exhaust smoke, act immediately. A preventative chain kit replacement is far cheaper than a full engine rebuild. If the engine has already failed, a high-quality used engine may be the most financially viable option for older C7 models.
Don't Let Engine Failure Write Off Your Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI
Whether you are dealing with early timing chain wear or a cooling system leak, replacing your engine with a rebuilt unit from EnginesMarket ensures the core weakness is addressed with upgraded components. You benefit from a minimum 12-month unlimited-mileage warranty, nationwide delivery, and prices that undercut main dealer premiums significantly.
Compare rebuilt CDNB Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine replacement cost-
A full reconditioned or rebuilt Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine typically costs between £3,200 and £5,500 for the supply-only unit, depending on the specific engine code and condition.
- Used engines start from around £800.
- Fully rebuilt units with upgraded components and a 12-month warranty sit at the higher end of the scale.
- Supply and fit labour will add approximately £520-£715 depending on the specialist.
Question 2What are the signs of timing chain failure in an Audi A6 2.0 TFSI-
The most common early warning sign is a distinct rattling noise from the engine bay during a cold start, which may fade as the oil warms up.
- You may also notice the engine management light illuminating.
- In severe cases, the engine may misfire, lose power, or fail to start entirely.
- Ignoring these signs can lead to rapid catastrophic internal engine damage.
Question 3Is it worth replacing the engine in an Audi A6 40 TFSI / 45 TFSI-
Yes, if the vehicle is in good overall condition and valued above £14,000, a reconditioned engine replacement is a financially sound decision that restores reliability.
- For older 2011-2014 models valued under £6,000, a high-quality used engine swap may offer a better return on investment.
- Always compare multiple specialist quotes to ensure the replacement cost does not exceed 60% of the vehicle's current market value.
Question 4How long does an Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine replacement take-
A straightforward supply and fit of a reconditioned Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine typically takes 1 to 2 days at a specialist workshop.
- This timeframe includes draining fluids, removing the old unit, and installing the replacement.
- Necessary ECU adaptations and road testing are completed before handover.
- Complex cases involving additional damage may extend this timeframe.
Question 5What is the difference between the 2.0 TFSI, 40 TFSI, and 45 TFSI badges in the Audi A6-
The "2.0 TFSI" badge (2011-2018) denotes the EA888 Gen 2 or early Gen 3 2.0-litre engine producing 211hp or 252hp.
- The "40 TFSI" and "45 TFSI" badges (2018-present) denote the updated EA888 Gen 3 2.0-litre engine producing 204hp and 245hp respectively.
- The C8 generation variants also incorporate a 12V mild-hybrid (MHEV) system to improve real-world fuel efficiency and emissions compliance.
Why Choose UsCompare Audi A6 2.0 TFSI / 40 TFSI / 45 TFSIEngine PricesToday
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