Audi A5 2.0 TDI / 35/40 TDI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Audi A5 2.0 TDI / 35/40 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective, warranty-backed solution for your vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,200 to £6,000
Used from £900 · Reconditioned from £2,200 · Common codes: CAGB, CGLB, CNHA, DEUA, DETA
From £900
Tested, bare/short engine
From £2,200
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 A5 2.0 TDI / 35/40 TDI Replacement Engineto Finding the Best Audi A5 2.0 TDI / 35/40 TDI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi A5 2.0 TDI / 35/40 TDI - Engine History & Specs at a Glance
When the 2.0 TDI was introduced to the Audi A5 range, it quickly became the dominant powertrain, offering a balance of torque, efficiency, and refinement. Over its production run, it evolved from the EA189 unit-injector platform to the highly refined EA288 common-rail diesel, adopting the modern 35 TDI and 40 TDI badging conventions in later years.
Variant HistoryAudi A5 2.0 TDI / 35/40 TDI - Engine History & Specs at a Glance
When the 2.0 TDI was introduced to the Audi A5 range, it quickly became the dominant powertrain, offering a balance of torque, efficiency, and refinement. Over its production run, it evolved from the EA189 unit-injector platform to the highly refined EA288 common-rail diesel, adopting the modern 35 TDI and 40 TDI badging conventions in later years.
Audi A5 2.0 TDI / 35/40 TDI
Fuel TypeDiesel
Engine Size Range2.0L
Power Output Range143hp-190hp across the variant's historyEngine History Timeline
CAGB engine code introduced (143hp) establishing the 2.0 TDI baseline for the B8 generation.
CGLB engine code introduced (170hp) featuring updated injection mapping for higher-spec B8 variants.
CNHA engine code introduced (190hp) for the B9 generation badged as 40 TDI, featuring improved common-rail injection and emissions controls.
DEUA and DETA engine codes introduced (150hp) for the B9 facelift badged as 35 TDI, integrating refined AdBlue systems and updated EGR cooling for stricter Euro 6d compliance.
Key Specs Snapshot
Fuel TypeDieselEngine Size Range2.0LPower Output Range143hp-190hp across the variant's historyYears Produced2007-presentEvery engine fitted to the Audi A5 2.0 TDI / 35/40 TDI is covered below, with UK rebuilt pricing and known failure points.
Audi A5 2.0 TDI / 35/40 TDI Engine Codes - Specifications & Replacement CostAudi A5 2.0 TDI / 35/40 TDI Engine Codes - Specifications & Replacement Cost
2.0L Diesel (2007-2012)
Power Output143hpYears Fitted2007-2012
Compatible Trim Levels
- 2.0 TDI
- 2.0 TDI SE
- 2.0 TDI Sport
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£900-£2,000
Reconditioned
Addressed known issues, tested
£2,200-£3,800
Rebuilt
Full teardown, upgraded internals
£3,200-£5,000
Common Failure
Injector coking and EGR valve clogging, typically observed between 80,000 and 150,000 miles, often leading to reduced performance and DPF blockage.
The Audi A5 2.0 TDI / 35/40 TDI is generally robust, but specific emissions and cooling components carry known vulnerabilities. The CGLB and CNHA codes dominate replacement demand for this variant due to EGR and DPF-related complexities. Rebuilt engines sourced through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.
Why the Audi A5 2.0 TDI / 35/40 TDI Loses Performance
Affected Vehicles
Audi A5 2.0 TDI / 35/40 TDI (CAGB, CGLB, CNHA, 2007-2020)
Typical Failure Mileage
80,000-150,000 miles
Root Cause
Carbon buildup from exhaust gas recirculation restricts flow and can cause the EGR cooler to leak coolant into the intake, leading to overheating or hydrolock if ignored.
Why It Happens
Carbon buildup from exhaust gas recirculation restricts flow and can cause the EGR cooler to leak coolant into the intake, leading to overheating or hydrolock if ignored.
Dealer (parts + labour)
£600-£1,200
Specialist (parts + labour)
£400-£800
What it involves
EGR valve cleaning or replacement, cooler inspection
Suitability
Viable if caught early before secondary engine damage occurs
1 - 2 daysDealer (parts + labour)
£4,500-£7,000
Specialist (parts + labour)
£3,200-£5,000
What it involves
Supply & fit, rebuilt unit with updated EGR components, 12-month warranty
Suitability
Recommended if coolant ingress has caused cylinder scoring or severe internal 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 | £600-£1,200 | £400-£800 | EGR valve cleaning or replacement, cooler inspection | Viable if caught early before secondary engine damage occurs | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £4,500-£7,000 | £3,200-£5,000 | Supply & fit, rebuilt unit with updated EGR components, 12-month warranty | Recommended if coolant ingress has caused cylinder scoring or severe internal damage | 1 - 2 days |
Our Recommendation
Our Recommendation
For older B8 models approaching the lower end of the value spectrum, a verified low-mileage used engine or targeted EGR/DPF repair is often the most economically viable route. For B9 35/40 TDI models, a reconditioned engine is a strong investment, provided the specialist verifies the AdBlue and DPF systems are fully functional to prevent repeat issues.
Don't Let Engine Failure Write Off Your Audi A5 2.0 TDI / 35/40 TDI
Navigating an engine failure is stressful, but comparing your options ensures you do not overpay. By sourcing quotes through EnginesMarket, you bypass main dealer premiums and connect directly with specialists who understand the specific quirks of the EA189 and EA288 platforms. Every replacement engine is backed by a minimum 12-month unlimited-mileage warranty and supported by nationwide delivery or supply & fit services.
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 A5 2.0 TDI / 35/40 TDI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Audi A5 2.0 TDI / 35/40 TDI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi A5 2.0 TDI / 35/40 TDI engine replacement cost-
The cost depends on the condition of the replacement unit and the specific engine code. Based on verified market data, used engines typically range from £900 to £2,500, while reconditioned units cost between £2,200 and £4,500.
- Used engines are the most budget-friendly but carry variable mileage.
- Reconditioned engines offer a balance of reliability and cost.
- Rebuilt engines are the most expensive but include comprehensive warranties and upgraded components.
Question 2What are the signs of EGR or DPF failure in an Audi A5 2.0 TDI / 35/40 TDI-
EGR and DPF issues often present as a gradual loss of performance, particularly under acceleration, accompanied by warning lights on the dashboard.
- A sweet smell from the engine bay or white smoke (indicating EGR cooler leakage).
- Frequent regeneration cycles or a persistent DPF warning light.
- The vehicle entering limp mode, restricting RPM and speed.
Question 3Is it worth replacing the engine in an Audi A5 35/40 TDI-
Yes, given that B9 generation models typically hold a market value of £10,000 to £22,000, a full rebuilt or reconditioned engine replacement is financially viable.
- A reconditioned engine preserves the vehicle's premium utility and resale value.
- Ensure the specialist addresses any underlying AdBlue or DPF issues during installation.
- Always obtain multiple quotes to ensure the repair cost remains proportionate to the vehicle's value.
Question 4How long does an Audi A5 2.0 TDI / 35/40 TDI engine replacement take-
A straightforward supply and fit service for this variant typically takes between 2 to 4 working days, depending on the specialist's workload and the complexity of the quattro drivetrain calibration (if applicable).
- Supply-only orders may take 24-48 hours for nationwide delivery.
- Complex fits requiring additional component replacement may extend this timeframe.
- Your chosen specialist will provide a precise timeline with your quote.
Question 5Will a replacement engine affect my Audi A5's warranty or resale value-
A professionally installed, OEM-spec replacement engine with documented service history and a valid warranty will preserve, and in some cases enhance, your vehicle's resale value.
- Ensure the engine code exactly matches your DVLA record.
- Retain all invoices and the 12-month unlimited-mileage warranty certificate.
- Proper ECU coding and calibration are essential for seamless integration.
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