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Audi A4 Diesel Engines: Used, Reconditioned, Supplied or Fitted

Need an engine after a breakdown or major engine failure? Compare quotes for used and reconditioned engines, supply only or supply and fit, with vehicle recovery available across mainland UK.

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Simple Process

Get replacement engine options in four simple steps

One enquiry can help you compare suitable engine supply and fitting options without contacting garages one by one.

1

Enter vehicle details

Use your registration or provide the make, model and engine information needed to identify a suitable replacement.

2

Tell us what you need

Choose used or reconditioned, then tell us whether you need supply only, fitting or recovery.

3

Receive matching quotes

Your enquiry can be matched with relevant suppliers and specialist garages with suitable options.

4

Compare and choose

Compare price, engine condition, warranty and service details before deciding which option suits you.

Trusted Engine Solutions

Top Selling A4 Diesel Engine Prices

Explore quality used and reconditioned replacement engines, with expert guidance to help you find the right fit for your vehicle.

In Stock Save Up to 50%

Audi A4 Diesel DEZB Engine

Year: 2019 - 2024 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DEZE Engine

Year: 2019 - 2024 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DFVA Engine

Year: 2015 - 2024 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DTNA Engine

Year: 2019 - 2024 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DTNB Engine

Year: 2019 - 2024 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel CZHA Engine

Year: 2015 - 2019 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DESA Engine

Year: 2018 - 2019 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DETA Engine

Year: 2018 - 2019 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DEUA Engine

Year: 2018 - 2019 Supply & Fit Available
In Stock Save Up to 50%

Audi A4 Diesel DEUB Engine

Year: 2015 - 2019 Supply & Fit Available
Audi A4 Diesel Replacement Engine Options

Select Audi A4 Diesel Engine Size

Select your Audi A4 Diesel engine size to find the right replacement engine for your vehicle.

Engine Options

What type of replacement engine do you need?

The right choice depends on your vehicle, budget, how long you plan to keep it and what is currently available.

Quality checked used engine

Used Engines

A practical lower-cost option when a compatible engine is available. Selected used engines may include warranty cover of up to 6 months.

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Tested reconditioned engine ready for installation

Reconditioned Engines

Suitable when you want a rebuilt engine option with greater long-term reassurance. Qualifying engines may include warranty cover up to 3 years.

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Popular Searches

Popular replacement engine searches

Browse the replacement engines UK drivers search for most, based on genuine enquiry activity, vehicle demand and real customer interest.

Audi A4 Diesel engine failure: the practical answer

Short answer: Start by separating diagnosis from purchasing. Once the engine requirement is confirmed, compare the replacement unit and the work needed to put the vehicle back into service.

  • Service: choose supply-only or supply-and-fit.
  • Reconditioned engines: warranty cover can be up to 3 years, depending on the engine and stated conditions.
  • Recovery: a non-running vehicle can be moved to the garage doorstep across mainland UK.
  • Used engines: warranty cover can be up to 6 months, depending on the individual unit and written terms.

What evidence should you ask for before approving the engine?

Ask for the engine specification, condition description, warranty period, major exclusions and included ancillaries in writing. Check what the fitter must replace, test or document for the warranty to remain valid. Keep the invoice and engine identification after installation. Engines4Sale draws on 35 years of automotive experience, modern workshop facilities, highly qualified mechanics and a UK-wide garage network, but individual unit terms should still be transparent.

The details that make a Audi A4 Diesel quote accurate

Have the registration number ready first. Depending on the derivative, the supplier may also need VIN, engine code, year, capacity, gearbox or exact version. These details are not paperwork for its own sake; they are how the replacement is checked against the vehicle. Capacity alone does not prove interchangeability. A written specification gives both the customer and the fitting garage a clearer basis for the job.

Three checks that make this Audi A4 Diesel quote more useful

The A-series badge places this in Audi's core passenger-car range; engine families can still differ substantially by generation and output. The model name itself identifies this as a diesel derivative, so diesel-specific supporting systems and ancillaries should be part of the fitting discussion. A cheap but poorly scoped engine can be false economy once specialist labour and missing components are considered.

  • Is the quoted engine confirmed against the registration and engine code?
  • How soon can the vehicle realistically return to the road after the engine is confirmed?
  • Who is responsible if the supplied engine does not match the vehicle?

Choose the engine around how long you plan to keep the Audi A4 Diesel

If the goal is to get a useful vehicle back on the road at a controlled cost, a correctly matched used engine may be appropriate. If the vehicle is a long-term keeper, paying more for a reconditioned unit can be easier to justify. Warranty can extend to 6 months for used engines and 3 years for reconditioned engines, depending on the supplied unit and conditions. Your ownership plan should influence which premium is worth paying.

Four situations that change a Audi A4 Diesel engine decision

A strong quote solves the customer's actual problem, not just the need for an engine. Consider these common priorities:

  • If your priority is long-term ownership: Include a reconditioned engine in the comparison because greater renewal and longer warranty potential may justify a higher initial spend.
  • If your priority is keeping a known vehicle: Compare the repair with the real cost and uncertainty of replacing the car with another used vehicle whose history you do not know.
  • If your priority is two options cost almost the same: Let condition, warranty, installation scope, expected ownership period and downtime decide the better value rather than a small price difference.
  • If your priority is fear of hidden charges: Ask for engine, labour, logistics, service items and likely ancillary work to be separated in writing, including what could change after strip-down.
Choose who is responsible for each part of the job

Supply-only works best when your garage has already agreed to fit the engine and has reviewed the warranty conditions. A fitted service is useful when you want the engine and labour arranged together. Recovery is available where the vehicle is stranded. Before authorising the work, make sure responsibility for engine, delivery, labour and supporting parts is clear.

What determines the final Audi A4 Diesel engine replacement cost?

There is no responsible fixed price for every derivative. Cost changes with the exact engine required, used or reconditioned condition, availability, included ancillaries, warranty and fitting work. Delivery or recovery, fluids, filters, timing components, turbo or fuel-system work and diagnostics can also affect the completed total. Compare written quotations on the same scope. On suitable jobs, alternative independent routes can deliver savings of up to 40% against comparable main-dealer costs.

From failed Audi A4 Diesel engine to a comparable quotation
  1. Explain the situation: Give the vehicle details, the workshop diagnosis if available and whether the vehicle can currently be driven.
  2. Match the engine: Use the strongest identification available so the proposed unit is checked against the actual vehicle.
  3. Plan the return to road: Confirm engine condition, fitting, recovery, warranty and timing as one repair route.

The goal is a quote for the correct Audi A4 Diesel engine and the complete route needed to use it.

Helpful Engine Guides

Useful information before you buy a Replacement Engine

Learn what to check before buying a replacement engine, from compatibility and mileage to warranties, delivery options and supplier reliability.

Engine price comparison guide
PRICE GUIDE

How much does a replacement engine cost in the UK?

Understand the factors that change engine supply and fitting prices.

See UK Engine Prices →
Used vs reconditioned engine comparison
BUYING GUIDE

Used vs reconditioned engines: what's the difference?

Compare cost, condition, intended use and warranty considerations.

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Engine code identification guide
COMPATIBILITY

How do I find the correct engine code for my car?

Learn why the right engine identification matters before ordering.

See UK Engine Prices →
Frequently Asked Questions

Questions UK drivers ask about Audi A4 Diesel engine replacement

Is engine replacement worth it on an older Audi A4 Diesel?

It can be if the body, gearbox and other major systems are sound and the completed repair compares favourably with replacing the vehicle. Consider the whole car and how long you intend to keep it.

What information is needed to match a Audi A4 Diesel engine?

Start with the registration. VIN, model year, engine code, fuel type, capacity, transmission or exact derivative may also be needed. These details help confirm compatibility before the unit is reserved or dispatched.

Should I choose used or reconditioned for my Audi A4 Diesel?

A used engine normally targets lower upfront cost. A reconditioned engine can suit longer ownership plans and greater warranty potential. Compare the entire fitted cost, included parts and warranty rather than the engine price alone.

Why does the engine code matter on a Audi A4 Diesel?

An engine code can distinguish units that share a capacity or model name but differ in output, electronics, emissions equipment or ancillaries. It is one of the strongest checks available when confirming compatibility.

What parts may not be included with a Audi A4 Diesel replacement engine?

The supplied scope varies. Turbocharger, injectors, manifolds, starter, alternator, sensors and other ancillaries may be included, excluded or transferred from the original engine. The written quote should state what is supplied.

What should I ask before paying for a Audi A4 Diesel engine?

Ask for the engine specification, condition, included ancillaries, warranty, delivery arrangement and any fitter requirements in writing. Also confirm what happens if the unit does not match the vehicle.

Why does workshop capability matter for a Audi A4 Diesel?

Premium models can have complex ancillaries, electronics and derivative differences. Correct identification, appropriate tools and documented installation steps reduce avoidable risk.

Customer Feedback

What drivers say about using Engines4Sale

Read genuine reviews from UK drivers who found quality replacement engines through our trusted supplier network.

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★★★★★

"Brilliant customer service ontime delivery. Engine was clean and tested as promised."

JS
Jones Smith Ford Transit · Verified Buyer
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★★★★★

"Cheapest on the net, hats off to E4S! Saved over £400 on my reconditioned engine."

CA
Cathy Adams Audi A4 TDI · Verified Buyer
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★★★★★

"Found the cheapest engine for my A4, great service and fast door-step delivery."

RL
Rebecca Long BMW 320d · Verified Buyer
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★★★★☆

Easy to compare used vs reconditioned without ringing round five different yards. Communication could've been a touch faster, but the engine itself runs perfectly.

MK
Michael Kerr Vauxhall Astra · Verified Buyer
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“
★★★★★

Supply and fit sorted in one booking. The supplier was properly vetted and the fitting garage kept me updated the whole way through. Would use again.

HP
Hamza Patel Mercedes C-Class · Verified Buyer
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