Engines Market

Audi 45 TDI SPECIALISTS

Audi A4 45 TDI Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Audi A4 45 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective, reliable solution for your vehicle.

Supply & Fit Available
12-Month Warranty
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Audi A4 45 TDI Engine
from£6,000 to £9,000
  • Usedfrom £2,500
  • Reconditionedfrom £4,500
  • Common codesDCPE
Audi a4 45 TDI Used Engine — DCPEAudi a4Used Engine — DCPEAudi a4 45 TDI Reconditioned Engine — DCPEAudi a4Reconditioned Engine — DCPEAudi a4 45 TDI Rebuilt Engine — DCPEAudi a4Rebuilt Engine — DCPE

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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 TDI Engine History & Specs at a Glance

When the 45 TDI badge was introduced for the B9 facelift, it signified the range-topping 3.0-litre V6 diesel, offering a refined, high-torque alternative to the ubiquitous 2.0-litre four-cylinder units, before the model line's eventual discontinuation.

Audi A4 45 TDI
  1. 2019

    DCPE (3.0L V6 TDI, 231hp) introduced for the B9 facelift (8W), replacing previous 190hp/245hp naming conventions with the new torque-based "45" badge.

  2. 2024

    Production of the Audi A4 B9 concludes, making the 45 TDI a discontinued, highly sought-after variant for buyers wanting V6 refinement without moving to the A6.

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

Engine Codes & Pricing

Audi A4 45 TDI Engine Codes Specifications & Replacement Cost

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

DCPE — 3.0L Diesel (2019-2024) engine

DCPE — 3.0L Diesel (2019-2024)

Power Output
231hp (170kW)
Years Fitted
2019-2024

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Common Problems

Audi A4 45 TDI Engine Problems Repair Cost vs Replacement

The Audi A4 45 TDI’s 3.0-litre V6 (DCPE) is generally robust, but high-mileage examples can develop emissions system faults or, in earlier B9 builds, crankshaft bearing 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

EGR Cooler Leaks & AdBlue System Faults

Affected
Audi A4 45 TDI (DCPE, 2019-2024)
Typical failure mileage
80,000-120,000 miles
Root cause
Thermal stress on the EGR cooler can cause internal coolant leaks, while AdBlue crystallisation frequently blocks dosing valves or damages NOx sensors.

Repair options

Repair tierDealer priceSpecialist price
Minor/Preventative£800-£1,500£400-£900
Full Replacement - rebuilt/reconditioned engine£8,000-£12,000£6,000-£9,000
Our recommendation
Address AdBlue or coolant warnings immediately. If the engine block is undamaged, a specialist emissions system repair is cost-effective. However, if coolant has contaminated the oil or cylinders, a full rebuilt engine is the only safe long-term solution.
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Crankshaft Bearing Wear

Affected
Audi A4 45 TDI (DCPE, 2019-2021 builds)
Typical failure mileage
60,000-100,000 miles
Root cause
Certain early B9 3.0 TDI units experienced premature crankshaft bearing wear, leading to a knocking sound and potential catastrophic bottom-end failure if oil pressure drops.

Repair options

Repair tierDealer priceSpecialist price
Minor/Preventative£300-£600£150-£400
Full Replacement - rebuilt/reconditioned engine£8,000-£12,000£6,000-£9,000
Our recommendation
If you hear a cold-start knock, stop driving immediately and have the oil pressure tested. If bearing wear is confirmed, do not attempt a partial repair; a fully rebuilt engine with revised clearances is the only reliable fix.
-> Compare rebuilt DCPE Audi A4 45 TDI engine prices

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

Navigating V6 diesel repairs can be complex, but you do not have to accept main dealer premiums. By comparing quotes through EnginesMarket, you gain access to vetted UK specialists who provide rebuilt Audi A4 45 TDI engines with upgraded components, comprehensive 12-month unlimited-mileage warranties, and nationwide supply & fit options.

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FAQ

Audi A4 45 TDI Engine ReplacementFrequently Asked Questions

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

Why Choose Us

Compare Audi A4 45 TDI Engine Prices Today

Do not overpay for your Audi A4 45 TDI engine replacement. Our free, no-obligation comparison tool connects you directly with vetted UK specialists. Whether you need a budget-friendly used unit or a fully rebuilt V6 engine with a comprehensive warranty, we ensure you get the best price for your exact DCPE engine code, without the main dealer markup.

HundredsHundreds of Audi A4 45 TDI engines supplied through our network
12-Month12-Month Warranty on every rebuilt Audi A4 45 TDI engine
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