Audi A8 3.0 TDI / 4550 TDI Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Audi A8 3.0 TDI / 45-50 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best supply and fit solution for your vehicle.
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12-Month Warranty
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From £3,500 to £6,500 [ESTIMATED - using CRCA/CCWA 3.0 TDI V6 family as proxy]
Used from £1,500 · Reconditioned from £3,500 · Common codes: CCWA, CDYA, CEJA, CGQB, CHVA, CWUB, DAZA
From £1,500
Tested, bare/short engine
From £3,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Audi A8 3.0 TDI / 45-50 TDI specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Audi A8 3.0 TDI / 45-50 TDI Replacement Engineto Finding the Best Audi A8 3.0 TDI / 45-50 TDI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi A8 3.0 TDI / 45-50 TDI - Engine History & Specs at a Glance
Launched as the core diesel powertrain for the flagship A8 range, the 3.0 TDI (later badged 45 TDI and 50 TDI) signifies a refined V6 diesel, evolving from the D4 generation's conventional setup to the D5 generation's mild-hybrid efficiency.
Variant HistoryAudi A8 3.0 TDI / 45-50 TDI - Engine History & Specs at a Glance
Launched as the core diesel powertrain for the flagship A8 range, the 3.0 TDI (later badged 45 TDI and 50 TDI) signifies a refined V6 diesel, evolving from the D4 generation's conventional setup to the D5 generation's mild-hybrid efficiency.
Audi A8 3.0 TDI / 45-50 TDI
Fuel TypeDiesel (Mild-Hybrid from 2018)
Engine Size Range3.0L V6
Power Output Range204-286hpEngine History Timeline
CCWA / CDYA 3.0L TDI, 204-258hp. Introduced with the D4 generation, establishing the 3.0 TDI as the dominant executive diesel choice with robust common-rail injection.
CEJA / CGQB / CHVA / CWUB 3.0L TDI, 258-286hp. Mid-cycle D4 updates brought increased power outputs, refined emissions systems, and improved thermal efficiency.
DAZA 3.0L TDI Mild Hybrid (50 TDI), 286hp. Launched with the D5 generation, featuring a 48V mild-hybrid belt starter generator (BSG) for smoother stop-start operation and enhanced fuel economy.
Key Specs Snapshot
Fuel TypeDiesel (Mild-Hybrid from 2018)Engine Size Range3.0L V6Power Output Range204-286hpYears Produced2010-presentEvery engine fitted to the Audi A8 3.0 TDI / 45-50 TDI is covered below, with UK rebuilt pricing and known failure points.
Audi A8 3.0 TDI / 45-50 TDI Engine Codes - Specifications & Replacement CostAudi A8 3.0 TDI / 45-50 TDI Engine Codes - Specifications & Replacement Cost
3.0L Diesel (2010-2014)
Power Output204-258hpYears Fitted2010-2014
Compatible Trim Levels
- 3.0 TDI SE
- 3.0 TDI Executive
- 3.0 TDI Quattro
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,500-£3,000
Reconditioned
Addressed known issues, tested
£3,500-£5,500
Rebuilt
Full teardown, upgraded internals
£5,000-£7,500
Common Failure
Timing chain tensioner wear and early turbocharger actuator fatigue, typically emerging between 80k-120k miles.
The Audi A8 3.0 TDI / 45-50 TDI is generally robust, but high-mileage examples can suffer from timing chain wear (early D4), EGR cooler leaks, and turbocharger fatigue. Rebuilt engines through EnginesMarket include upgraded components addressing original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Audi A8 3.0 TDI / 45-50 TDI (CCWA/CDYA) Requires Attention
Affected Vehicles
Audi A8 3.0 TDI / 45-50 TDI (CCWA, CDYA, 2010-2014)
Typical Failure Mileage
80k-120k miles
Root Cause
Early 3.0 TDI V6 units can experience timing chain stretch or tensioner wear, while high-mileage turbos suffer from actuator wear and oil starvation if maintenance intervals are extended.
Why It Happens
Early 3.0 TDI V6 units can experience timing chain stretch or tensioner wear, while high-mileage turbos suffer from actuator wear and oil starvation if maintenance intervals are extended.
Dealer (parts + labour)
£800-£1,500
Specialist (parts + labour)
£500-£900
What it involves
Timing chain inspection, tensioner replacement, and turbo actuator calibration.
Suitability
Viable if caught early, before structural engine damage occurs.
1 - 2 daysDealer (parts + labour)
£7,500-£11,000
Specialist (parts + labour)
£5,000-£7,500
What it involves
Supply & fit of reconditioned/rebuilt 3.0 TDI V6, upgraded components, 12-month warranty.
Suitability
The right call if chain rattle is present or turbo failure has caused secondary damage.
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 | £800-£1,500 | £500-£900 | Timing chain inspection, tensioner replacement, and turbo actuator calibration. | Viable if caught early, before structural engine damage occurs. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £7,500-£11,000 | £5,000-£7,500 | Supply & fit of reconditioned/rebuilt 3.0 TDI V6, upgraded components, 12-month warranty. | The right call if chain rattle is present or turbo failure has caused secondary damage. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical 2010-2014 Audi A8 3.0 TDI is valued at approximately £6,000-£15,000 [THIRD-PARTY]. For sub-£8,000 examples, a high-quality used replacement may be more financially viable than a full rebuild, though a reconditioned unit remains the safest long-term investment if you plan to keep the car.
Our Recommendation
Our Recommendation
For isolated turbo or tensioner faults on a well-maintained Audi A8 3.0 TDI / 45-50 TDI, targeted component repair is the most cost-effective route. However, if the vehicle has exceeded 120k miles and exhibits concurrent timing chain rattle or oil consumption, a reconditioned engine replacement offers superior long-term value and peace of mind.
Don't Let Engine Failure Write Off Your Audi A8 3.0 TDI / 45-50 TDI
Navigating diesel engine repairs can be complex, but you don't have to accept main dealer premiums. By comparing quotes through EnginesMarket, you gain access to vetted UK specialists who provide rebuilt Audi A8 3.0 TDI / 45-50 TDI engines with upgraded components, comprehensive 12-month unlimited-mileage warranties, and nationwide supply & fit options.
Compare rebuilt CCWA Audi A8 3.0 TDI / 45-50 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 A8 3.0 TDI / 45-50 TDI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Audi A8 3.0 TDI / 45-50 TDI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi A8 3.0 TDI / 45-50 TDI engine replacement cost-
The cost to replace an Audi A8 3.0 TDI / 45-50 TDI engine typically ranges from £1,500 for a used unit to £3,500-£6,500 for a fully rebuilt engine (supply-only).
- Used engines are the most budget-friendly but carry higher risk.
- Reconditioned engines offer a balance of cost and reliability.
- Rebuilt engines provide the highest reliability with upgraded components.
Question 2What are the signs of a failing engine in an Audi A8 3.0 TDI / 45-50 TDI-
Owners of the Audi A8 3.0 TDI / 45-50 TDI should watch for persistent engine management lights, excessive black smoke from the exhaust, and a noticeable loss of power or limp mode.
- Unusual rattling sounds from the engine bay on cold starts (timing chain).
- Frequent AdBlue or DPF warning messages that do not clear after regeneration.
- Unexplained coolant loss, which may indicate an EGR cooler leak.
Question 3Is it worth replacing the engine in an Audi A8 3.0 TDI / 45-50 TDI-
Yes, for most owners, it is financially viable. The Audi A8 3.0 TDI / 45-50 TDI retains strong residual values, typically ranging from £6,000 to £45,000 depending on the generation and condition.
- A rebuilt engine is a sensible investment for a D5 (2018+) model.
- For older D4 (2010-2018) models, a high-quality reconditioned unit offers excellent value if you plan to keep the car for 2+ years.
- Always compare the replacement cost against the vehicle's current market value before proceeding.
Question 4How long does an Audi A8 3.0 TDI / 45-50 TDI engine replacement take-
A professional supply and fit engine replacement for an Audi A8 3.0 TDI / 45-50 TDI typically takes 3 to 5 working days due to the complexity of the V6 layout and electronics.
- Day 1: Vehicle intake, draining of fluids, and careful removal of the faulty engine.
- Day 2-3: Installation of the replacement engine, reconnection of the Quattro drivetrain, and refilling of fluids.
- Day 4-5: ECU coding, software updates, and comprehensive road testing to ensure all systems are functioning correctly.
Question 5Will any 3.0 TDI engine fit my Audi A8 3.0 TDI / 45-50 TDI-
No, you must ensure the replacement engine matches your specific engine code (e.g., CCWA, CDYA, or DAZA) and is configured for your drivetrain (Quattro).
- Non-Quattro engines lack the necessary rear differential drive components and mounting points.
- Using an incorrect engine code can result in ECU incompatibility, DPF/AdBlue system errors, and failed MOT emissions tests.
- Entering your registration on EnginesMarket guarantees the quote is matched to your exact DVLA-registered engine specification.
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