Audi A4 30 TDI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Audi A4 30 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines for your exact registration.
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12-Month Warranty
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From £3,800 to £6,000 [EM-QUOTE]
Used from £1,200 · Reconditioned from £2,800 · Common codes: DEUC, DEZB, DTNB
From £1,200
Tested, bare/short engine
From £2,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Audi A4 30 TDI Replacement Engineto Finding the Best Audi A4 30 TDI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi A4 30 TDI - Engine History & Specs at a Glance
While the legendary 1.9 TDI established the Audi A4's diesel heritage in earlier generations, the modern "30 TDI" badge specifically denotes the highly efficient 2.0L EA288 diesel introduced in the B9 facelift, offering refined performance and mild-hybrid technology.
Variant HistoryAudi A4 30 TDI - Engine History & Specs at a Glance
While the legendary 1.9 TDI established the Audi A4's diesel heritage in earlier generations, the modern "30 TDI" badge specifically denotes the highly efficient 2.0L EA288 diesel introduced in the B9 facelift, offering refined performance and mild-hybrid technology.
Audi A4 30 TDI
Fuel TypeDiesel (with MHEV option)
Engine Size Range2.0L
Power Output Range122-136hpEngine History Timeline
DEUC 2.0L TDI, 122hp (B9 facelift introduction, EA288 architecture, front-wheel drive focus)
DEZB / DTNB 2.0L TDI, 136hp (Introduction of 12V mild-hybrid electric vehicle (MHEV) technology for improved efficiency and smoother stop-start)
Key Specs Snapshot
Fuel TypeDiesel (with MHEV option)Engine Size Range2.0LPower Output Range122-136hpYears Produced2019-presentEvery engine fitted to the Audi A4 30 TDI is covered below, with UK rebuilt pricing and known failure points.
Audi A4 30 TDI Engine Codes - Specifications & Replacement CostAudi A4 30 TDI Engine Codes - Specifications & Replacement Cost
2.0L Diesel (2019-present)
Power Output122hpYears Fitted2019-present
Compatible Trim Levels
- 30 TDI SE
- 30 TDI Sport
- 30 TDI S line
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,200-£2,500
Reconditioned
Addressed known issues, tested
£2,800-£4,500
Rebuilt
Full teardown, upgraded internals
£3,800-£6,000
Common Failure
AdBlue system sensor faults and occasional DPF clogging in strict urban environments.
The Audi A4 30 TDI (EA288 2.0L) is generally regarded as a robust and highly efficient diesel, representing a significant reliability improvement over older VAG diesel units. However, high-mileage examples can develop emissions system faults. Rebuilt engines supplied through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.
Why the Audi A4 30 TDI Suffers from Restricted Performance
Affected Vehicles
Audi A4 30 TDI (DEUC, DEZB, DTNB, 2019-present)
Typical Failure Mileage
80,000-120,000 miles
Root Cause
Frequent short, urban journeys prevent the DPF from reaching optimal regeneration temperatures, while AdBlue crystallisation can trigger NOx sensor faults and limp mode.
Why It Happens
Frequent short, urban journeys prevent the DPF from reaching optimal regeneration temperatures, while AdBlue crystallisation can trigger NOx sensor faults and limp mode.
Dealer (parts + labour)
£400-£800
Specialist (parts + labour)
£250-£500
What it involves
Forced DPF regeneration and AdBlue system reset
Suitability
Suitable for early-stage warnings; not a permanent fix if hardware is degraded.
1 - 2 daysDealer (parts + labour)
£5,500-£7,500
Specialist (parts + labour)
£3,800-£6,000
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty
Suitability
The right call when DPF issues are compounded by turbo or EGR wear.
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor/Preventative Minor | £400-£800 | £250-£500 | Forced DPF regeneration and AdBlue system reset | Suitable for early-stage warnings; not a permanent fix if hardware is degraded. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £5,500-£7,500 | £3,800-£6,000 | Supply & fit, upgraded components addressing the original failure point, 12-month warranty | The right call when DPF issues are compounded by turbo or EGR wear. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Audi A4 30 TDI (2019-present) is worth ~£12,000-£25,000 [THIRD-PARTY]. A reconditioned or rebuilt engine is highly viable and justified by the warranty, as the replacement cost represents a sensible fraction of the vehicle's retained value.
Our Recommendation
Our Recommendation
If the engine block is healthy, a specialist DPF clean and AdBlue system diagnostic is the most cost-effective first step. However, if the turbo has also failed due to soot contamination, a full reconditioned replacement offers better long-term value.
Don't Let Engine Failure Write Off Your Audi A4 30 TDI
Whether you are dealing with persistent AdBlue warnings or EGR issues, replacing the engine with a professionally rebuilt unit ensures the underlying flaws are corrected. With a minimum 12-month unlimited-mileage warranty and nationwide supply & fit options, you avoid the unpredictable costs of main dealer repairs while keeping your Audi A4 30 TDI on the road.
Compare rebuilt DEUC Audi A4 30 TDI engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Audi A4 30 TDI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Audi A4 30 TDI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi A4 30 TDI engine replacement cost-
The cost to replace an Audi A4 30 TDI engine varies based on the condition of the unit.
- Used engines typically range from £1,200 to £2,800.
- Reconditioned units cost between £2,800 and £4,800.
- Fully rebuilt engines with upgraded components range from £3,800 to £6,200.
Question 2What are the signs of AdBlue or DPF failure in an Audi A4 30 TDI-
Emissions system faults are the most common issue in high-mileage 30 TDI engines, especially those used primarily for short urban trips.
- Persistent engine management light or "AdBlue System Fault" warning.
- Noticeable loss of power or "limp mode" activation.
- Excessive black smoke from the exhaust or a strong sulphur smell.
Question 3Is the Audi A4 30 TDI engine more reliable than the older 1.9 TDI-
Yes, the modern 2.0L EA288 engine in the 30 TDI is significantly more refined and robust than the legacy 1.9 TDI.
- It features a front-mounted timing chain, avoiding the complex rear-mounted designs of older VAG diesels.
- While it has complex emissions systems (AdBlue/DPF), the core mechanical block is highly durable when properly maintained.
Question 4How long does an Audi A4 30 TDI engine replacement take-
A professional supply and fit service for an Audi A4 30 TDI typically takes 1 to 2 working days.
- Removing the old engine and preparing the bay takes several hours.
- Installing the replacement, refilling fluids, and performing VAG-specific ECU coding requires specialist diagnostic tools.
Question 5Will a replacement 30 TDI engine be compatible with my S tronic gearbox-
Yes, but compatibility must be verified by engine code and transmission type.
- The flywheel and mechatronic interface must match your specific S tronic (DSG) gearbox.
- Our specialists cross-reference your DVLA registration data to ensure the quoted engine is a direct fit.
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