Audi A4 2.0 TDI Diesel Engines
from £1,200 to £3,500
Rebuilt units from £1,200 · Common codes: CAGA, CFFB, CNHA, DEUA
Audi ENGINE MARKETPLACE
Audi A4 EA888/EA189/EA288 Engine Solutions - UK Specialists
Get quotes from trusted UK Audi A4 engine specialists. Compare reconditioned & used engines for 1.4 TFSI to RS4 - EA888/EA189/EA288 covered. Get a quote before it's too late.
Supply & Fit Available
12-Month Warranty
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100+ Suppliers
Audi A4 2.0 TFSI Petrol Engines
from £1,400 to £4,200
Rebuilt units from £1,400 · Common codes: CAEB, CYRB, DKZA, CZDA
Audi A4 3.0 TDI V6 Engines
from £2,500 to £6,500
Rebuilt units from £2,500 · Common codes: CLAB, CCWA
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Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Audi A4 Replacement Engineto Finding the Best Audi A4 Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
What Are UK Drivers Paying for Audi A4 Engine Replacement
Compare typical UK rebuilt Audi A4 engine costs by variant - see failure causes, engine codes, fuel types and supply-only price ranges for affordable replacement.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Audi A4 Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Audi A4 engines through EngineMarket.
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Variants We Cover
Audi A4 Engine ReplacementAll Variants Covered
Not sure which variant your Audi A4 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
A4
Engine Codes
Audi A4 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Audi A4 across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Diesel Engines
Extracted from detailed diesel engine families across Audi A4 variants.
CAGA - 2.0L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
SESportS lineAvant SEAvant SportS line Avant
Avg. rebuilt price
£1,200 - £2,800
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 2.0L
- Power output
- 140-143 hp
- Years fitted
- 2008-2023
Common failures
- ●Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Audi A4 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
A4
Common Problems
Audi A4 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
Audi A4 Timing Chain Failure - Why EA888 Petrol Engines Fail Prematurely
Audi A4 Timing Chain Failure
Most affected vehicles
Audi A4 2.0 TFSI SportS line
Audi A4 2.0 TFSI Sport, S line, Black Edition (2008-2012, CAEB & early CYRB codes)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
Early EA888 Gen 2 engines used a weak hydraulic tensioner and thin plastic chain guides. Oil pressure fluctuations cause the tensioner to lose preload, allowing the chain to stretch, rattle, and eventually skip timing.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Chain Kit & Tensioner Upgrade | £950 - £1,350 | £650 - £900 | Fitting revised tensioner, upgraded metal guides, new chain and sprockets before catastrophic failure. | Restores timing integrity; viable only if the chain has not yet jumped. |
| Full Replacement - Rebuilt EA888 Engine | £4,800 - £6,200 | £1,900 - £2,900 | Complete strip and rebuild with updated piston rings, strengthened short block, revised timing assembly, bench-tested and ready to install. | Permanent solution; eliminates timing risk and addresses secondary wear. |
Our recommendation
If you hear a metallic rattle on cold start, replace the timing chain kit immediately before metal debris contaminates the oil pump. Once the chain has jumped timing or caused valve contact, the Audi A4 timing chain failure demands a full Audi A4 engine replacement to avoid collateral damage to the cylinder head and ancillaries.
Compare rebuilt CAEB Audi A4 engine prices for exact fitmentReplacement Engine Options
Audi A4 Engine TypesOptions, Costs & What to Expect
Every engine type is available through our UK network with typical price ranges based on your audi a4 variant, engine code and budget.
Audi A4 Reconditioned Engines (Recon)£1,100 - £2,800((supply only))
Audi A4 Rebuilt Engines£1,300 - £3,400((supply only))
Audi A4 Used Engines£600 - £1,800((supply only))
Audi A4 Remanufactured Engines£1,800 - £4,500((supply only))
Audi A4 Refurbished Engines£900 - £2,400((supply only))
Compare Audi A4 engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Audi A4 within hours.
Engine Sizes
Audi A4 Engines by SizeFind the Right Displacement for Your Variant
Every displacement officially fitted to the Audi A4 is listed below, with compatible engine codes, production years and model-specific failure notes to help you verify your exact unit.
The 2.0-litre common-rail TDI is the undisputed backbone of the Audi A4 diesel lineup, powering the vast majority of B8 and B9 generations sold across the UK. Renowned for strong low-end torque and refined highway cruising, this efficient unit was offered in multiple states of tune to balance fleet economy with premium performance expectations. Its widespread use in company cars and private saloons has created a robust aftermarket network for reliable replacement options.
⚙
Engine Code(s)
CAGA, CFFB, CAHA, CNHA, DEUA
▣
Compatible Models (UK)
B8 SE/Sport/S line/Avant (2008-2015), B9 35 TDI/40 TDI/Ultra/S line
ϟ
Power output
Verified by registration
△
Common Failure Points
EGR cooler fracture from thermal stress, DPF blockage due to short-trip driving, early-generation timing belt tensioner wear
Production Years: 2015-2023
Get quotes for Audi A4 2.0L diesel enginesAudi A4 Engines Fuel Type
Audi A4 Engines by Fuel Type
Choose your Audi A4 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early B8 2.0 TDI to the latest B9 45 TFSI e plug-in hybrid.
Audi A4 Diesel Engines
DieselThe 2.0L and 3.0L TDI common-rail diesels dominate Audi A4 replacement enquiries across B8 and B9 generations, prized for motorway efficiency but prone to EGR, DPF and emissions-system failures at higher mileage.
Common Audi A4 Diesel Engine Families
- •CAGA/CFFB - 140hp 2.0 TDI (B8 SE/Sport), high-volume fleet engines with EGR cooler vulnerability
- •CAHA/CNHA - 170-190hp 2.0 TDI (B8/B9 Sport/S line), refined output but DPF regeneration sensitivity
- •DEUA - 150hp ultra-efficiency 2.0 TDI (B9), balanced economy yet susceptible to short-trip DPF clogging
Found In
- •B8 Saloon/Avant (2008-2015) - CAGA, CFFB, CAHA, CLAB
- •B9 Saloon/Avant/Allroad (2015-2023) - CNHA, DEUA, CCWA, 40 TDI MHEV
Known For
- •Strong motorway fuel economy and low-end torque for effortless cruising
- •EGR cooler fracture and coolant loss between 70k-110k miles on 2.0 TDI units
- •DPF regeneration faults on urban-driven examples requiring active motorway use
Typical Diesel Models
- •2.0 TDI SE
- •2.0 TDI Sport
- •2.0 TDI S line
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Audi A4 Diesel Engines
DieselThe 2.0L and 3.0L TDI common-rail diesels dominate Audi A4 replacement enquiries across B8 and B9 generations, prized for motorway efficiency but prone to EGR, DPF and emissions-system failures at higher mileage.
Common Audi A4 Diesel Engine Families
- •CAGA/CFFB - 140hp 2.0 TDI (B8 SE/Sport), high-volume fleet engines with EGR cooler vulnerability
- •CAHA/CNHA - 170-190hp 2.0 TDI (B8/B9 Sport/S line), refined output but DPF regeneration sensitivity
- •DEUA - 150hp ultra-efficiency 2.0 TDI (B9), balanced economy yet susceptible to short-trip DPF clogging
Found In
- •B8 Saloon/Avant (2008-2015) - CAGA, CFFB, CAHA, CLAB
- •B9 Saloon/Avant/Allroad (2015-2023) - CNHA, DEUA, CCWA, 40 TDI MHEV
Known For
- •Strong motorway fuel economy and low-end torque for effortless cruising
- •EGR cooler fracture and coolant loss between 70k-110k miles on 2.0 TDI units
- •DPF regeneration faults on urban-driven examples requiring active motorway use
Typical Diesel Models
- •2.0 TDI SE
- •2.0 TDI Sport
- •2.0 TDI S line
Audi A4 Petrol Engines
PetrolThe 1.4L and 2.0L TFSI petrol engines power entry-level to performance-focused A4 variants, offering responsive acceleration but requiring attention to timing chain, oil consumption and direct-injection carbon buildup.
Common Audi A4 Petrol Engine Families
- •CZDA - 150hp 1.4 TFSI (B9 35 TFSI), efficiency-focused entry unit with cylinder-on-demand technology
- •CAEB - 211hp 2.0 TFSI (B8 early), EA888 Gen 2 with pre-2012 timing chain tensioner vulnerability
- •CYRB/DKZA - 245-252hp 2.0 TFSI (B9), EA888 Gen 3/3B with revised chain but persistent oil-burn concerns
Found In
- •B8 Saloon/Avant (2008-2015) - CAEB, early TFSI applications
- •B9 Saloon/Avant (2015-2023) - CZDA, CYRB, DKZA, 35/40/45 TFSI badging
Known For
- •Rapid throttle response and strong mid-range power for confident overtaking
- •Timing chain tensioner failure on pre-2012 EA888 Gen 2 engines (60k-100k miles)
- •Excessive oil consumption on EA888 Gen 3 due to narrow piston ring oil drains
Typical Petrol Models
- •1.4 TFSI SE
- •2.0 TFSI Sport
- •2.0 TFSI S line
Audi A4 Mild Hybrid (MHEV) Engines
MHEVB9-facelift A4 variants introduced 12-volt mild-hybrid technology to improve stop-start smoothness and marginal fuel economy, retaining conventional TDI/TFSI cores with added electrical complexity.
Audi A4 MHEV Engine Codes
- •DEUA MHEV - 150hp 2.0 TDI with belt-starter generator (40 TDI MHEV)
- •DKZA MHEV - 245hp 2.0 TFSI with 12V system (40 TFSI MHEV)
- •12-volt belt-starter generator recovers braking energy to assist acceleration
Found In
- •40 TDI MHEV Sport/S line/Avant (2020-2023)
- •40 TFSI MHEV Sport/S line (2020-2023)
Important Notes
- •MHEV does not offer electric-only driving; petrol/diesel engine remains primary power source
- •Specialist diagnostic equipment required for hybrid system fault clearance post-install
- •Availability of MHEV-calibrated rebuilt units more limited than standard engines
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Not sure which fuel type your Audi A4 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Audi A4 specialists.
Engine YearsGet quotes for 2007-2011 Audi A4 replacement engines →
Audi A4 Engines by YearWhat Was Fitted & WhenAudi A4 Engines by Year - What Was Fitted & When
The Audi A4 engine timeline covers every major powertrain update from the B8 launch to the current mild-hybrid B9.5 generation, organised so owners can quickly identify their exact year-specific unit and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓MLB predecessor platform debut with saloon and Avant body styles
- ✓First widespread application of 2.0 TDI common-rail injection in the A4 lineup
- ✓EA888 Gen 2 TFSI replaces older fuel-stratified petrol units
- ✓Quattro system updated with crown-gear centre differential for improved weight distribution
▣Main Engines
CAGA- 2.0L Diesel (Audi A4 SE/Sport 140hp)
CAHA- 2.0L Diesel (Audi A4 Sport/S line 170hp)
CAEB- 2.0L Petrol (Audi A4 TFSI Sport 211hp)
CAPA- 3.0L Diesel (Audi A4 quattro/S line 245hp)
▰Popular Models
- •Audi A4 2.0 TDI SE
- •Audi A4 2.0 TDI Sport
- •Audi A4 2.0 TFSI S line
- •Audi A4 3.0 TDI quattro
- •Audi A4 2.0 TDI Avant
🔧Known For
- ✓Exceptional motorway refinement and class-leading cabin acoustic insulation
- ✓High company car adoption drives massive aftermarket replacement supply and competitive pricing
- ✓Pre-2012 EA888 Gen 2 TFSI exhibits timing chain tensioner vulnerability and oil burn
- ✓Early DPF systems show regeneration sensitivity on urban-driven, short-journey examples
Engine Codes Covered:
CAGACAHACAEBCAPACDNCCAHBNot sure which year your Audi A4 was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK Audi A4 specialists.
FAQ