What are the signs of EGR or DPF failure in an Audi Q5 30 TDI - 50 TDI-

Early warning signs of emissions system issues in the Audi Q5 30 TDI - 50 TDI often appear between 80,000 and 120,000 miles, including engine management light illumination, loss of power, or white smoke from the exhaust.

Is it worth replacing the engine in an Audi Q5 30 TDI - 50 TDI-

For most owners, replacing the engine is a financially sound decision given the strong retained value of the Q5, especially for FY models valued between £15,000 and £35,000+, easily justifying a rebuilt engine investment.

How long does an Audi Q5 30 TDI - 50 TDI engine replacement take-

A professional Audi Q5 30 TDI - 50 TDI engine replacement typically takes between 3 to 5 working days at a specialist workshop, covering removal, installation, ECU adaptation, and quattro system calibration.

What is the difference between the 40 TDI and 50 TDI engines in the Audi Q5-

The 40 TDI uses a 2.0-litre four-cylinder TDI engine producing 190-204hp, while the 50 TDI uses a 3.0-litre V6 TDI engine producing 286hp, paired with a more advanced 48V mild-hybrid system.

Audi Q5 30 TDI - 50 TDI SPECIALISTS

Audi Q5 30 TDI 50 TDI Engine Replacement — Compare Prices & Get Quotes

Get quotes today from trusted UK Audi Q5 30 TDI - 50 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best value for your premium diesel SUV.

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Audi Q5 30 TDI - 50 TDI Engine

from£3,800 to £9,500...

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Reconditionedfrom £2,800
Common codesDEZE, DTNA, DETA

Audi q5 30 TDI - 50 TDI Used Engine — DEZE / DTNA

Audi q5Used Engine — DEZE / DTNA

Audi q5 30 TDI - 50 TDI Reconditioned Engine — DEZE / DTNA

Audi q5Reconditioned Engine — DEZE / DTNA

Audi q5 30 TDI - 50 TDI Rebuilt Engine — DEZE / DTNA

Audi q5Rebuilt Engine — DEZE / DTNA

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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 Q5 30 TDI 50 TDI — Engine History & Specs at a Glance

When the 30 TDI to 50 TDI badge range was introduced, it offered a comprehensive suite of efficient yet powerful diesel options for the Q5, evolving from the robust 3.0 V6 of the 8R generation to the highly refined, mild-hybrid 2.0 and 3.0 units of the FY generation.

2008
CDUC / CCWA, 3.0L TDI V6, 240hp (8R generation launch, establishing the Q5's premium diesel towing and performance credentials)
2016
DEZE / DTNA, 2.0L TDI, 163hp (8R facelift / early FY, introducing the 35 TDI badge for improved fleet tax efficiency)
2017
DETA / DEUA, 2.0L TDI, 190hp (FY generation launch, standardising the 40 TDI badge with updated EA288 architecture)
2020
DTPA, 2.0L TDI, 204hp (FY facelift, introducing 12V mild-hybrid technology to the 40 TDI for smoother stop-start and lower emissions)
2020
DMGA / DCP, 3.0L TDI V6, 286hp (FY generation, launching the 50 TDI badge with a 48V mild-hybrid system and revised turbocharging)

Every engine fitted to the Audi Q5 30 TDI - 50 TDI is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Audi Q5 30 TDI 50 TDI Engine Codes — Specifications & Replacement Cost

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

DEZE / DTNA — 2.0L Diesel (2016-2020)

Power Output: 163hp
Years Fitted: 2016-2020

Can’t find your exact engine code?-> Get quotes for DEZE Audi Q5 30 TDI - 50 TDI engine replacement

-> Get quotes for DEZE Audi Q5 30 TDI - 50 TDI engine replacement

Common failure points and repair options

EGR Cooler & DPF Issues

Affected: Audi Q5 30 TDI - 50 TDI (DEZE, DETA, 2016-present)
Typical failure mileage: 80,000-120,000 miles

Root cause

Short urban journeys prevent the DPF from completing active regeneration cycles, while the EGR cooler is prone to internal leaks that introduce coolant into the intake or exhaust, triggering warning lights and limp mode.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative	£800-£1,200	£500-£800
Full Replacement - rebuilt/reconditioned engine	£5,500-£8,000	£3,800-£6,000

Our recommendation

For 2.0L TDI units showing early EGR or DPF warnings, a targeted preventative repair is the most cost-effective path. However, if the 3.0L V6 has suffered internal damage or severe oil cooler failure, investing in a rebuilt unit is the safest long-term solution, as it benefits from modernised internal components and a comprehensive warranty.

Oil Cooler & 48V System Faults

Affected: Audi Q5 30 TDI - 50 TDI (DMGA, DCP, 2020-present)
Typical failure mileage: 60,000-100,000 miles

Root cause

The V6 layout places the oil cooler in a tight valley, where heat cycles can degrade seals over time. Additionally, the 48V belt-driven starter-generator (BSG) can suffer from premature wear or software communication faults.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative	£1,200-£1,800	£800-£1,200
Full Replacement - rebuilt/reconditioned engine	£8,500-£12,000	£6,000-£9,500

Our recommendation

-> Compare rebuilt Audi Q5 30 TDI - 50 TDI engine prices

Don't Let Engine Failure Write Off Your Audi Q5 30 TDI - 50 TDI

A failed engine does not have to mean the end of your Q5. By comparing quotes through EnginesMarket, you bypass inflated main dealer premiums and connect directly with vetted UK specialists. Every replacement engine is fitted with upgraded components to address known weaknesses and is backed by a minimum 12-month unlimited-mileage warranty, with nationwide delivery and supply & fit options available.

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FAQ

Audi Q5 30 TDI50 TDI Engine Replacement — Frequently Asked Questions

Everything Audi Q5 30 TDI - 50 TDI owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A rebuilt Audi Q5 30 TDI - 50 TDI engine typically costs between £3,800 and £9,500 for supply only, depending on whether it is a 2.0L or 3.0L V6 unit, while used units start around £1,200.

Rebuilt units include upgraded components and a 12-month warranty.
Reconditioned options offer a middle ground, usually priced between £2,800 and £7,000.
Supply and fit labour will add approximately £520 to £1,040 depending on the specialist.

-> Compare rebuilt Audi Q5 30 TDI - 50 TDI engine prices today.

For most owners, replacing the engine is a financially sound decision given the strong retained value of the Q5, especially for FY generation models.

Early 8R models hold values around £8,000-£12,000, making a quality reconditioned 2.0L engine a viable budget option.
FY models are valued between £15,000 and £35,000+, easily justifying a rebuilt engine investment to preserve towing capacity and quattro performance.
A rebuilt unit restores factory efficiency and includes a 12-month warranty.

-> Check if your Audi Q5 30 TDI - 50 TDI qualifies for a replacement quote.

A professional Audi Q5 30 TDI - 50 TDI engine replacement typically takes between 3 to 5 working days at a specialist workshop.

Day 1: Vehicle intake, diagnostic confirmation, and engine removal.
Day 2-3: Preparation of the replacement unit, transfer of ancillaries, and installation.
Day 4-5: Fluid top-up, ECU adaptation, quattro system calibration, and final quality checks.

-> Book your Audi Q5 30 TDI - 50 TDI supply and fit service now.

The 40 TDI and 50 TDI represent different displacements and performance tiers within the Q5 diesel range.

The 40 TDI uses a 2.0-litre four-cylinder TDI engine (e.g., DETA, DTPA) producing 190-204hp, often with a 12V mild-hybrid system.
The 50 TDI uses a 3.0-litre V6 TDI engine (e.g., DMGA, DCP) producing 286hp, paired with a more advanced 48V mild-hybrid system for superior towing and acceleration.

-> Get quotes for a 50 TDI-spec Audi Q5 30 TDI - 50 TDI engine.

Why Choose Us

Compare Audi Q5 30 TDI 50 TDI Engine Prices Today

Comparing quotes is completely free and carries no obligation. Whether you drive an 8R or FY generation, we match your exact Audi Q5 30 TDI - 50 TDI registration and engine code with vetted UK specialists who hold the correct diesel units in stock, ensuring you get the best possible price and warranty coverage for your premium SUV.

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