Audi A7 30 TDI / 45 TDI / 50 TDI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Audi A7 30 TDI / 45 TDI / 50 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective and reliable solution for your executive sportback.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £2,800 to £8,000 [ESTIMATED - using VW/Audi EA288/EA897 family proxy]
Used from £1,200 · Reconditioned from £2,800 · Common codes: CLZB, CDUD, CRTD
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 A7 30 TDI / 45 TDI / 50 TDI Replacement Engineto Finding the Best Audi A7 30 TDI / 45 TDI / 50 TDI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi A7 30 TDI / 45 TDI / 50 TDI - Engine History & Specs at a Glance
When the diesel variants of the A7 Sportback launched, they offered a potent, efficient alternative to petrol, evolving from the early 3.0 TDI V6 units to the modern mild-hybrid 45 TDI and 50 TDI architectures, alongside the highly efficient 2.0L four-cylinder.
Variant HistoryAudi A7 30 TDI / 45 TDI / 50 TDI - Engine History & Specs at a Glance
When the diesel variants of the A7 Sportback launched, they offered a potent, efficient alternative to petrol, evolving from the early 3.0 TDI V6 units to the modern mild-hybrid 45 TDI and 50 TDI architectures, alongside the highly efficient 2.0L four-cylinder.
Audi A7 30 TDI / 45 TDI / 50 TDI
Fuel TypeDiesel (with 12V/48V MHEV on C8 models)
Engine Size Range2.0L - 3.0L V6
Power Output Range204-286hpEngine History Timeline
CDUC / CDUD (3.0L V6 TDI 204-245hp) introduced in the C7 generation, establishing the A7 as a capable grand tourer with strong torque and quattro capability.
CRTD (3.0L V6 TDI 245hp) launched with the C7 facelift, featuring Euro 6 compliance and revised emissions systems to meet stricter environmental standards.
CLZB (2.0L TDI 204hp) and updated 3.0L V6 units launched in the C8 generation, incorporating 12V/48V mild-hybrid (MHEV) technology for enhanced efficiency and refined power delivery.
Key Specs Snapshot
Fuel TypeDiesel (with 12V/48V MHEV on C8 models)Engine Size Range2.0L - 3.0L V6Power Output Range204-286hpYears Produced2010-presentEvery engine fitted to the Audi A7 30 TDI / 45 TDI / 50 TDI is covered below, with UK rebuilt pricing and known failure points.
Audi A7 30 TDI / 45 TDI / 50 TDI Engine Codes - Specifications & Replacement CostAudi A7 30 TDI / 45 TDI / 50 TDI Engine Codes - Specifications & Replacement Cost
2.0L Diesel (2018-present)
Power Output204hpYears Fitted2018-present
Compatible Trim Levels
- 40 TDI Sport
- 40 TDI S line
- 40 TDI Black Edition (Note: Often referenced in the lower-tier diesel bracket alongside 30 TDI in specific markets).
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 [ESTIMATED - using VW/Audi EA288 family proxy]
Common Failure
EGR cooler leaks and DPF clogging in predominantly urban driving cycles.
The Audi A7 30 TDI / 45 TDI / 50 TDI is a sophisticated executive diesel lineup. While the EA288 four-cylinder and EA897 V6 engines are generally robust, they have specific, well-documented wear patterns related to emissions systems and cooling components. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure point, plus a minimum 12-month unlimited-mileage warranty.
Why the Audi A7 30 TDI / 45 TDI / 50 TDI (CDUD/CRTD) Suffers Premature Failure
Affected Vehicles
Audi A7 30 TDI / 45 TDI / 50 TDI (CDUD, CRTD, 2010-2018)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
The turbocharger oil strainer can become restricted, leading to oil starvation and turbo failure. Coupled with early timing chain tensioner wear, this can cause catastrophic internal engine damage if ignored.
Why It Happens
The turbocharger oil strainer can become restricted, leading to oil starvation and turbo failure. Coupled with early timing chain tensioner wear, this can cause catastrophic internal engine damage if ignored.
Dealer (parts + labour)
£1,200-£2,000
Specialist (parts + labour)
£800-£1,200
What it involves
Replacement of the oil strainer, timing chain, guides, and revised tensioner.
Suitability
Highly effective if caught early before valve contact or turbo seizure occurs.
1 - 2 daysDealer (parts + labour)
£7,000-£10,000
Specialist (parts + labour)
£5,000-£8,000 [ESTIMATED - using VW/Audi EA897 family proxy]
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
Required only if oil starvation has caused catastrophic secondary damage to the block or head.
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: Oil strainer & timing chain kit replacement Minor | £1,200-£2,000 | £800-£1,200 | Replacement of the oil strainer, timing chain, guides, and revised tensioner. | Highly effective if caught early before valve contact or turbo seizure occurs. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £7,000-£10,000 | £5,000-£8,000 [ESTIMATED - using VW/Audi EA897 family proxy] | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | Required only if oil starvation has caused catastrophic secondary damage to the block or head. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
Apply this UK-wide decision framework. A typical 2010-2018 Audi A7 30 TDI / 45 TDI / 50 TDI is worth ~£6,000-£18,000 [THIRD-PARTY]. - Vehicle worth under ~£5,000: repair or used engine typically makes more sense than a full rebuilt unit. - Vehicle worth ~£5,000-£8,000: evaluate both; reconditioned is viable if keeping the car 2+ years. - Vehicle worth ~£8,000-£15,000: reconditioned/rebuilt usually justifies the premium via warranty and reliability. - Vehicle worth £15,000+: replacement cost is typically small relative to vehicle value. At this value, a £800-£1,200 specialist repair is vastly more economical than a full rebuild. If the lowest viable replacement cost exceeds approximately 60% of the vehicle's current market value, evaluate scrap value before committing.
Our Recommendation
Our Recommendation
Address oil strainer and timing chain warnings immediately. A preventative chain kit and strainer replacement is far cheaper than a full engine rebuild. Full replacement is rarely needed solely for these issues unless neglect has caused catastrophic secondary damage.
Don't Let Engine Failure Write Off Your Audi A7 30 TDI / 45 TDI / 50 TDI
Whether you are dealing with an AdBlue system fault or a cooling system leak, replacing your engine with a rebuilt unit from EnginesMarket ensures the core weakness is addressed with upgraded components. You benefit from a minimum 12-month unlimited-mileage warranty, nationwide delivery, and prices that undercut main dealer premiums significantly.
Compare rebuilt CDUD Audi A7 30 TDI / 45 TDI / 50 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 A7 30 TDI / 45 TDI / 50 TDI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Audi A7 30 TDI / 45 TDI / 50 TDI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi A7 30 TDI / 45 TDI / 50 TDI engine replacement cost-
A full reconditioned or rebuilt Audi A7 30 TDI / 45 TDI / 50 TDI engine typically costs between £2,800 and £8,000 for the supply-only unit, depending on whether it is the 2.0L four-cylinder or the 3.0L V6 variant.
- Used engines start from around £1,200.
- Fully rebuilt units with upgraded components and a 12-month warranty sit at the higher end of the scale.
- Supply and fit labour will add approximately £650-£1,040 depending on the specialist.
Question 2What are the signs of turbocharger oil strainer failure in an Audi A7 30 TDI / 45 TDI / 50 TDI-
The most common early warning sign is a distinct whining noise from the turbocharger or a loss of power under acceleration.
- You may also notice the engine management light illuminating.
- In severe cases, oil starvation can cause a knocking sound from the bottom end.
- Ignoring these signs can lead to rapid catastrophic internal engine damage.
Question 3Is it worth replacing the engine in an Audi A7 30 TDI / 45 TDI / 50 TDI-
Yes, if the vehicle is in good overall condition, a reconditioned engine replacement is a financially sound decision that restores reliability.
- Typical C8 generation Audi A7 30 TDI / 45 TDI / 50 TDI models are valued between £22,000 and £50,000, making a £3,500-£6,000 rebuilt engine a small fraction of the car's worth.
- For older C7 models valued under £8,000, a high-quality used engine swap may offer a better return on investment.
Question 4How long does an Audi A7 30 TDI / 45 TDI / 50 TDI engine replacement take-
A straightforward supply and fit of a reconditioned Audi A7 30 TDI / 45 TDI / 50 TDI engine typically takes 2 to 3 days at a specialist workshop.
- This timeframe includes draining fluids, removing the old unit, and installing the replacement.
- Necessary ECU adaptations, AdBlue system recalibration, and road testing are completed before handover.
- Complex cases involving additional damage may extend this timeframe.
Question 5What is the difference between the 2.0L and 3.0L V6 diesel engines in the Audi A7 30 TDI / 45 TDI / 50 TDI-
The 2.0L variant (CLZB) produces 204hp and prioritises fuel efficiency and lower tax bands, often badged as 40 TDI but grouped in the lower-tier diesel bracket.
- The 3.0L V6 variants (CDUD/CRTD at 245-286hp) utilise the EA897 architecture, offering superior refinement, stronger mid-range torque, and standard quattro all-wheel drive.
- Both benefit from mild-hybrid technology in the C8 generation, but the V6 requires more rigorous adherence to AdBlue and oil service intervals.
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