How 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.

What 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.

Is 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.

How 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.

What 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.

Audi 2.0 TFSI / 40 TFSI / 45 TFSI SPECIALISTS

Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Replacement Compare 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.

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Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine

from£3,200 to £5,500...

Usedfrom £800
Reconditionedfrom £2,000
Common codesCDNB, CDNC, CYRB

Audi a6 2.0 TFSI / 40 TFSI / 45 TFSI Used Engine — CDNB

Audi a6Used Engine — CDNB

Audi a6 2.0 TFSI / 40 TFSI / 45 TFSI Reconditioned Engine — CDNB

Audi a6Reconditioned Engine — CDNB

Audi a6 2.0 TFSI / 40 TFSI / 45 TFSI Rebuilt Engine — CDNB

Audi a6Rebuilt Engine — CDNB

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Audi 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.

2011
CDNB (2.0L TFSI, 211hp) introduced in the C7 generation, featuring EA888 Gen 2 architecture with direct injection and turbocharging.
2012
CDNC (2.0L TFSI, 252hp) launched, offering higher output for the upper trim levels of the C7 A6.
2015
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.
2018
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.

Every engine fitted to the Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

CDNB — 2.0L Petrol (2011-2014)

Power Output: 211hp
Years Fitted: 2011-2014

Can’t find your exact engine code?-> Get quotes for CDNB Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine replacement

-> Get quotes for CDNB Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine replacement

Common failure points and repair options

Timing Chain Tensioner & Oil Consumption

Affected: 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.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative: Timing chain & tensioner kit replacement	£1,200-£1,800	£800-£1,200
Full Replacement - rebuilt/reconditioned engine	£5,000-£7,000	£3,200-£5,500 [EM-QUOTE]

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.

-> Compare rebuilt CDNB Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine prices

Water Pump & Thermostat Housing Leaks

Affected: Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI (All EA888 codes, 2011-present)
Typical failure mileage: 60,000-100,000 miles

Root cause

The plastic composite housing of the water pump and thermostat is prone to warping and cracking under repeated thermal cycling, leading to external coolant leaks.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative: Water pump and thermostat assembly replacement	£700-£1,100	£400-£800
Full Replacement - rebuilt/reconditioned engine	£5,000-£7,000	£3,200-£5,500 [EM-QUOTE]

Our recommendation

Monitor coolant levels closely and replace the water pump assembly preventatively around 80,000 miles. If the engine has overheated, opt for a reconditioned engine with a warranty to avoid recurring issues.

-> Compare rebuilt DLHA Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine prices

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 Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Replacement Prices Now ->

FAQ

Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine ReplacementFrequently Asked Questions

Everything Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

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.

-> Compare Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine replacement quotes today.

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.

-> Get a diagnostic quote for your Audi A6 2.0 TFSI timing system.

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.

-> Check if your Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI is a candidate for cost-effective replacement.

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.

-> Book your Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI engine supply and fit today.

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.

-> Confirm your exact engine code and get tailored Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI quotes.

Why Choose Us

Compare Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI Engine Prices Today

Don't overpay at the main dealer. Comparing quotes is free, no-obligation, and specific to your exact Audi A6 2.0 TFSI / 40 TFSI / 45 TFSI and engine code. Our vetted UK specialists provide transparent, itemised pricing for used, reconditioned, and rebuilt engines, ensuring you get the best possible value and peace of mind for your executive vehicle.

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