How much does an Audi A4 45 TFSI engine replacement cost-

A full rebuilt Audi A4 45 TFSI engine typically costs between £3,200 and £5,500 for supply only, with reconditioned units starting from £2,000.

What are the signs of water pump failure in an Audi A4 45 TFSI-

Early warning signs include coolant leaks under the vehicle or a distinct sweet smell from the engine bay. You may also experience an illuminated engine management light or the engine running hotter than normal.

Is it worth replacing the engine in an Audi A4 45 TFSI-

For B9 models valued between £12,000 and £28,000, a full rebuild is highly financially viable. A reconditioned or rebuilt unit restores reliability and comes with a 12-month warranty.

How long does an Audi A4 45 TFSI engine replacement take-

A standard supply and fit procedure for the 2.0 TFSI engine typically takes 2 to 3 working days at a specialist workshop.

What is the difference between the CYRB and DKZA engines in the Audi A4 45 TFSI-

Both are 2.0-litre EA888 Gen3 turbocharged petrol engines, but the DKZA is the updated version introduced in the 2020 facelift. The DKZA features a slightly lower output (245hp vs 252hp) due to updated emissions controls and the integration of a 12V mild-hybrid system.

Audi A4 45 TFSI Specialists

Audi A4 45 TFSI Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Audi A4 45 TFSI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best value for your high-performance executive saloon or estate.

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Audi A4 45 TFSI Engine

from£3,200 to £5,500

Usedfrom £800
Reconditionedfrom £2,000
Common codesCYRB, DKZA

Audi a4Used Engine — CYRB

Audi a4 45 TFSI Reconditioned Engine — CYRB

Audi a4Reconditioned Engine — CYRB

Audi a4Rebuilt Engine — CYRB

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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 A4 45 TFSI Engine History & Specs at a Glance

When the 45 TFSI badge was introduced to the A4 range, it signified the higher-output 2.0-litre turbocharged petrol engine, evolving through the B9 generation with refined thermal management and mild-hybrid integration.

2016
CYRB engine code, 2.0L TFSI, 252hp (B9 generation launch, EA888 Gen 3 introduction)
2020
DKZA engine code, 2.0L TFSI, 245hp (B9 facelift, updated emissions and 12V mild-hybrid system integration)

Every engine fitted to the Audi A4 45 TFSI is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Audi A4 45 TFSI Engine Codes Specifications & Replacement Cost

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

CYRB — 2.0L Petrol (2016-2020)

Power Output: 252hp
Years Fitted: 2016-2020

Can’t find your exact engine code?-> Get quotes for CYRB Audi A4 45 TFSI engine replacement

-> Get quotes for CYRB Audi A4 45 TFSI engine replacement

Common Problems

Audi A4 45 TFSI Engine Problems Repair Cost vs Replacement

The Audi A4 45 TFSI is a high-performance executive engine that demands precise maintenance. While the EA888 Gen3 architecture (CYRB, DKZA) resolved many early-generation timing chain issues, specific components like the cooling system remain prone to wear. Rebuilt engines supplied through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Water Pump & Thermostat Housing Failure

Affected: Audi A4 45 TFSI (CYRB, DKZA, 2016-present)
Typical failure mileage: 60k-120k miles

Root cause

Plastic composite components in the cooling system degrade under sustained high thermal loads, leading to coolant leaks and potential overheating.

Repair options

Repair tier	Dealer price	Specialist price
Component Replacement	£800-£1,200	£400-£800
Full Replacement - rebuilt/reconditioned engine	£5,000-£7,500	£3,200-£5,500

Our recommendation

If caught early, a specialist component replacement is highly cost-effective. However, if coolant loss has led to overheating or the vehicle has exceeded 100k miles, a rebuilt engine is the safer long-term investment.

-> Compare rebuilt CYRB Audi A4 45 TFSI engine prices

Carbon Buildup & PCV Valve Wear

Affected: Audi A4 45 TFSI (CYRB, 2016-2020)
Typical failure mileage: 60k-100k miles

Root cause

Direct injection fuel delivery bypasses the intake valves, allowing carbon deposits to accumulate over time, while the PCV valve can fail and cause oil consumption or rough idling.

Repair options

Repair tier	Dealer price	Specialist price
Preventative Cleaning/PCV Service	£600-£1,000	£300-£600
Full Replacement - rebuilt/reconditioned engine	£5,000-£7,500	£3,200-£5,500

Our recommendation

For 45 TFSI models, proactive carbon cleaning and PCV replacement is the most financially sound strategy. If catastrophic failure has already occurred, a rebuilt engine with revised internal components is the only reliable path forward.

-> Compare rebuilt DKZA Audi A4 45 TFSI engine prices

Don't Let Engine Failure Write Off Your Audi A4 45 TFSI

Protect your investment with a rebuilt engine that features upgraded components to eliminate known weak points. With a minimum 12-month unlimited mileage warranty, nationwide delivery, and prices significantly below main dealer premiums, comparing quotes is the smartest first step.

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FAQ

Audi A4 45 TFSI Engine ReplacementFrequently Asked Questions

Everything Audi A4 45 TFSI owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

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