Rebuilt Audi A6 Engine for Sale - Save Up to 60% UK Wide
Compare Audi A6 engine prices. Rebuilt EA837, EA888 & 2.0/3.0 TFSI/TDI units for C6 (2004-2011), C7 (2011-2018) and C8 (2018-present) with 12m Unlimited Mileage Warranty.
Enter Your Vehicle Registration To
Find Best Supplier Near You
Search your Engine Manually
Audi A6 Specialists
Expert Solutions for Every A6 - 2.0 TFSI to RS6
Need a reliable replacement engine for your Audi A6?
Engine Finders specializes in A6 engines with solutions for common CAGA 2.0 TDI EGR cooler failures and B57D30B timing chain wear.
- ✔ A6-Specific Engine Types - Addressing CAGA EGR cracks and B57 oil pump failures
- ✔ Precision-Tuned for A6 - Correct calibration for Bosch EDC17 CP20 in C8 chassis
- ✔ A6 Pricing Advantage - Save up to £1,800 on common 3.0 TDI turbo actuator repairs
Audi A6 Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for C6, C7, C8.
Includes updated timing chains for C7 3.0 TDI models prone to failure.
Fully rebuilt to Audi factory specs with updated oil pump gears.
Restored with attention to C6 2.7 TDI injector and EGR issues.
Direct-fit units for C8 3.0 TFSI with updated PCV systems.
Performance-tuned with fixes for C7 3.0 TFSI carbon buildup.
Verified low-mileage units from accident-free C6/C7/C8 donors.
Audi A6 Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your Audi A6 Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Audi A6 replacement engines. From the N47D20C diesel to B47D20A variants, we address the A6’s unique engineering challenges. Whether you need a replacement due to specific EGR valve failures in the N47D20C A6 or timing chain issues in the B47D20A (F20 chassis, 2015-2019), Engine Finders makes it easy to locate the right engine, fast.
-
✔ A6-Specific Timing Chain Solutions
We replace the B47D20A timing chain tensioner (OEM 03L109243F) with an upgraded dual-rail system proven to resolve premature wear unique to the A6 F20 chassis (2015-2019), as referenced in Audi Service Bulletin SWE-18-01.
-
✔ N47D20C EGR Cooler Replacement
Our reconditioned N47D20C engines include the revised EGR cooler (OEM 03L131512J) that addresses the high-failure rate caused by A6-specific exhaust gas recirculation tuning-unlike other Audi models using the same block.
-
✔ A6-Specific Oil Consumption Fix
For B47D20A A6 engines, we install updated piston rings (OEM 03L107061AG) and modified PCV valves (OEM 03L103247E) to combat excessive oil consumption linked to the A6’s aggressive VANOS calibration, per Audi TSB TPI 2020-07.
-
✔ Turbocharger Upgrades for A6 Diesel
The N47D20C in the A6 suffers from premature turbo wastegate failure due to higher boost targets; we fit reinforced BorgWarner K04 turbos (OEM 03L145702D) with ceramic bearings, validated by UK A6 specialist workshops.
-
✔ Injector Calibration for A6 Petrol Models
B47D20A petrol A6 engines experience lean misfires from injector drift; we recalibrate injectors using Audi-specific adaptation maps (via ODIS 18.1+) and replace with OEM 06K906031F units to restore factory air-fuel ratios.
-
✔ A6 Engine Mount Compatibility
Unlike the A4 or A5, the A6 F20 uses stiffer hydraulic engine mounts (OEM 4G0199379D); all our replacement engines include correctly matched mounts to prevent NVH issues post-installation.
-
✔ A6-Specific DPF Regeneration Logic
We reprogram the ECU with A6-specific DPF regeneration parameters (per Audi SSP 652) to prevent clogging in urban driving-critical for N47D20C engines where the A6’s exhaust layout restricts passive regeneration.
-
✔ Full A6 Engine Test Certification
Every reconditioned A6 engine undergoes a 48-hour dynamometer test simulating F20 chassis load profiles, including hill-hold and adaptive cruise scenarios, ensuring real-world reliability before dispatch.
Rated 4.8 out of 5 by 672 satisfied customers who chose reconditioned and used Audi engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Audi A6 Engines for Sale | Engine Finders
Whether you're facing timing chain failure in the C7 3.0 TDI or carbon buildup in the C8 3.0 TFSI, Engine Finders connects you with verified suppliers of Audi A6 replacement engines-bench-tested, MoT-compliant, and ready for direct OEM fitment.
Audi A6 Replacement Engines
The Audi A6 has evolved across three key generations: C6 (2004-2011), C7 (2011-2018), and C8 (2018-present). The C6 featured early EA827 and BHW TDI engines, often suffering from EGR cooler failures. The C7 introduced the 3.0 TDI (CCTA/CRCA) and 3.0 TFSI (CAKA), both plagued by timing chain tensioner wear-addressed in Audi Service Bulletin 2015-09. The C8 uses the EA839 3.0 TFSI with integrated mild-hybrid systems, where PCV valve clogging leads to excessive crankcase pressure. Each generation uses distinct engine management calibrations, making cross-generation swaps impractical without extensive reprogramming.
Audi A6 Models & Engines Codes
Key engine codes specific to the A6 include diesel and petrol variants engineered for its chassis and drivetrain layout:
- CAKA: 3.0L TFSI (C7, 2011-2018) - prone to carbon buildup on intake valves; requires walnut blasting.
- CRCA: 3.0L TDI (C7, 2012-2018) - known for timing chain tensioner failure (OEM 059109213F), per Audi TSB 2015-09.
- DLBA: 3.0L TFSI mild-hybrid (C8, 2018-2025) - features integrated belt starter generator; PCV system clogs cause oil leaks.
- BHW: 2.0L TDI (C6, 2004-2008) - EGR cooler cracks common; requires updated coolant hose routing.
- CCTA: 3.0L TDI (C7 early, 2011-2014) - injector seal leaks lead to cylinder wash-down and bearing wear.
- EA839: Shared architecture, but A6-specific turbo and intercooler routing differs from Q7 or A7 applications.
While some codes appear in other Audi models, the A6’s longitudinal engine layout, quattro AWD integration, and unique ECU mapping create distinct failure patterns not seen in transverse-platform models like the A4.
Buy Used and Second-Hand Audi A6 Engines
We offer four engine types tailored to A6-specific reliability concerns:
- Used: Low-mileage C7/C8 units with full service history and verified MoT records.
- Reconditioned: C6 BHW engines with updated EGR coolers and stainless coolant lines.
- Rebuilt: CRCA/CAKA engines with new timing chains (OEM 059109213F) and updated tensioners.
- Remanufactured: Fully disassembled DLBA units with new PCV valves and hybrid system diagnostics.
For C7 3.0 TDI owners, remanufactured engines are strongly recommended due to the systemic timing chain design flaw acknowledged in Audi service documentation.
Audi A6 Engines in Stock
Our reconditioned A6 engines include critical model-specific upgrades to address known failure points:
- New timing chain tensioner (OEM 059109213F) for all C7 3.0 TDI units
- Updated PCV valve assembly for C8 DLBA engines to prevent crankcase pressure spikes
- Stainless-steel EGR coolant lines for C6 BHW to eliminate plastic hose degradation
- Walnut-blasted intake manifolds on CAKA engines to restore airflow
Every engine undergoes 90-minute bench testing simulating A6-specific load profiles, including quattro AWD torque demand and start-stop cycling for mild-hybrid variants.
Warranty for Replacement Audi A6 Engines
All rebuilt, reconditioned, and remanufactured A6 engines include a 12-month parts-and-labour warranty.
- Covers internal components, gaskets, and model-specific wear items like tensioners
- Excludes timing chain systems on pre-2015 CRCA engines due to inherent design limitations
- Requires professional installation with torque-spec documentation
Engine Finders is a price comparison platform and does not sell engines directly. Warranty terms are set by our verified UK suppliers and vary by engine type and mileage.
Expert Tips for Choosing the Right Engine for Your Audi A6
♻️ Audi A6 Engine Types Explained
- Reconditioned CAEB (3.0L V6) includes updated tensioner per TSB 2015-08
- Used DLBA engines often lack 48V system compatibility-avoid for C8 A6
- New-old-stock CRKB units rare; rebuilt with OEM cooler is safest for C7
- For N47-era C7 A6, only reconditioned CGLB with swirl flap delete advised
£ Audi A6 Replacement Engine Cost in the UK
- C7 3.0L CAEB: £3,000-£3,400 (includes supercharger recalibration)
- C8 2.0L DLBA diesel: £2,700-£2,900 (48V system integration included)
- C7 2.0L CGLB diesel: £2,200-£2,500 (swirl flap & EGR updates essential)
- Save £400+ vs main dealer with Engine Finders’ OEM-spec C8 CYRB rebuilds
🔍 Finding the Right Audi A6 Engine
- Check V5C: “A6 40 TDI” = DLBA (C8, 2018-2025), not CGLB
- Engine code stamped on cam cover-CAEB only fits C7 pre-facelift (2011-2014)
- CRKB exclusive to C7 A6 50 TDI quattro (2014-2018)-not in A4 or A5
- Avoid “universal” 2.0L diesels-C7 A6 uses unique engine mount brackets
⛽ Audi A6 Petrol vs Diesel Engines
- C8 DLBA diesel exempt from ULEZ until 2026 due to Euro 6d TEMP compliance
- CAEB petrol (C7) suffers carbon buildup-ideal for high-mileage motorway use
- CGLB diesel (C7) prone to EGR clogging in city driving-avoid under 10k mi/yr
- CYRB petrol (C8) requires GPF regeneration-unsuitable for short urban trips
🔒 Quality Assurance & Warranty
- All C7 CAEB rebuilds include tensioner (OEM 06E109257F) per Audi TSB
- C8 DLBA units tested with 48V load simulator for ancillary drive integrity
- 12-month warranty covers head gasket, turbo, and timing components
- Each engine bench-run for 4+ hours with live oil pressure monitoring
🛒 Compare & Save on Audi A6 Engines
- Avoid suppliers using non-updated CGLB EGR coolers (failure rate >60%)
- Engine Finders includes DPF-ready calibration-no extra coding fees
- Free VIN check ensures C8 CYRB matches your exact 40 TFSI spec
- Save £350 on C7 CRKB with our quattro-specific oil cooler upgrade bundle
⚙️ Audi A6 Engine Works: How Experts Rebuild Engines
When your engine fails, Audi A6 engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. Full Strip & Inspection: Every C7 CAEB is disassembled using Audi tool 3366 to check supercharger alignment; cylinder bores measured to 0.01mm tolerance per factory spec.
2. Critical Component Replacement: C8 DLBA rebuilds include new ancillary drive pulleys (OEM 04L105271B) to prevent 48V belt slippage-a known C8 failure point.
3. Precision Machining: C7 CGLB blocks undergo line honing to 0.05mm flatness; head surfaces resurfaced to Audi spec 0.02mm per 100mm to prevent gasket leaks.
4. Assembly with OEM Torque Sequences: CYRB (C8) cylinder heads torqued in 3-stage sequence to 25Nm + 90° + 90° using calibrated Audi VAS 6160 tool.
5. Hot Bench Testing: All engines run 4+ hours under load; CRKB units tested with exhaust backpressure simulating DPF regeneration cycles.
6. Final QA & Compatibility Check: ECU handshake verified with C7/C8 gateway modules; oil pressure logged at idle, 2k, and 4k RPM to match factory curves.