Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Get quotes today from trusted UK Citroen C6 engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available.
-> Rebuilt units from £1,800 · Common codes: DW12BTED4, 4HP, 4HR, 4HT
-> Rebuilt units from £2,200 · Common codes: XFV, ES9 J4S
-> Rebuilt units from £3,000 · Common codes: DT20C, FT20CTED4, UHZ
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Get Instant Quotes from Citroen Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
Typical UK rebuilt Citroen C6 engine costs across variants - compare known failure causes, engine codes, fuel types and sizes for affordable replacements.

Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Citroen C6 engines through EngineMarket.
Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Pete
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
Sophie
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
- Jimmy, London
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From the economical 2.2 HDi Business to the high‑performance 3.0 HDi V6 Exclusive, our network of UK Citroen C6 engine specialists helps you compare rebuilt, reconditioned and used engine prices. Typical rebuilt unit with 12‑month warranty: £1,200-£5,500 - supply & fit available nationwide.
A full alphabetical listing of every Citroen C6 trim covered by our network. All entries link to a dedicated variant page, where prices are further broken down by engine code, model year, and condition type. Click a live link to compare quotes.
Diesel Variants
Petrol Variants
Performance Variants
Every engine code fitted to the Citroen C6 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.
Extracted from detailed diesel engine families across Citroen C6 variants.
Extracted from detailed petrol and performance engine families across Citroen C6 variants.
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 Citroen C6 engine specialists. Every rebuilt engine comes with a minimum 12‑month unlimited mileage warranty.
Citroen C6 engine reliability varies significantly by unit, with the DW12BTED4 2.2 HDi, DT20C 3.0 HDi V6, and ES9 J4S 3.0 V6 petrol dominating Citroen C6 replacement demand across the UK. High-mileage executive saloon use, combined with complex emissions hardware, often leads to expensive Citroen C6 component failures that cascade into major internal damage. Every rebuilt Citroen C6 engine supplied through our network includes upgraded internal components designed to address the original failure point - plus a minimum 12‑month unlimited mileage warranty.
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why Citroen C6 Diesel Engines Lose Power
Citroen C6 2.2 HDi, 2.7 HDi V6, 3.0 HDi V6 (DW12BTED4, UHZ, DT20C, FT20CTED4) | 2005-2012
70,000 - 110,000 miles
Short urban journeys prevent passive regeneration cycles, causing ash and soot to accumulate in the diesel particulate filter or FAP additive system. This creates severe exhaust backpressure, forcing the Citroen C6 ECU into limp mode and potentially pushing unburned diesel into the crankcase.
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - DPF/FAP Cleaning & ECU Reset Minor | £600 - £900 | £350 - £600 | Off-car chemical cleaning and forced regeneration cycle via diagnostic tool | Restores function if filter substrate is intact; requires motorway driving to prevent recurrence |
Intermediate - DPF/FAP Unit Replacement Intermediate | £1,400 - £2,200 | £800 - £1,300 | Fitting new OEM or high-flow aftermarket filter unit, sensor calibration, and software update | Resolves Citroen C6 blockage permanently; best for low-mileage owners planning long-term ownership |
Full Replacement - Rebuilt / Reconditioned Citroen C6 Engine Best Value | £2,000 - £4,500 | £1,500 - £3,800 | Complete supply & fit of a tested rebuilt unit, upgraded oil pump, new ancillaries, 12-month warranty | Only viable if Citroen C6 backpressure has caused turbo oil starvation, bent valves, or severe carbon wash damage |
On a Citroen C6 valued between £1,500 and £4,000, a new DPF or FAP unit often costs more than the vehicle's depreciated value. If your unit shows early warning signs like intermittent limp mode or frequent regeneration cycles, specialist cleaning is the most cost-effective route. However, if the Citroen C6 engine has suffered prolonged oil dilution or loss of compression from severe backpressure, a full Citroen C6 engine replacement is the only reliable long-term solution.
Whether you are dealing with a blocked FAP, a failing turbo, or worn injectors, the cost of repeated Citroen C6 engine repairs quickly outweighs the value of your executive saloon. Our network simplifies the process by instantly matching your registration and engine code to vetted UK Citroen C6 specialists who offer transparent, fixed-price supply and fit options. Every replacement unit is bench-tested, fitted with upgraded components that target known Citroen C6 failure points, and backed by a minimum 12-month unlimited mileage warranty with nationwide delivery. Compare prices from trusted specialists today and secure a reliable, warrantied Citroen C6 engine replacement without paying main dealer premiums.
Compare Citroen C6 Engine Replacement Prices Now →Citroen C6 engine reliability varies significantly by unit, with the DW12BTED4 2.2 HDi, DT20C 3.0 HDi V6, and ES9 J4S 3.0 V6 petrol dominating Citroen C6 replacement demand across the UK. High-mileage executive saloon use, combined with complex emissions hardware, often leads to expensive Citroen C6 component failures that cascade into major internal damage. Every rebuilt Citroen C6 engine supplied through our network includes upgraded internal components designed to address the original failure point - plus a minimum 12‑month unlimited mileage warranty.
Citroen C6 2.2 HDi, 2.7 HDi V6, 3.0 HDi V6 (DW12BTED4, UHZ, DT20C, FT20CTED4) | 2005-2012
70,000 - 110,000 miles
Short urban journeys prevent passive regeneration cycles, causing ash and soot to accumulate in the diesel particulate filter or FAP additive system. This creates severe exhaust backpressure, forcing the Citroen C6 ECU into limp mode and potentially pushing unburned diesel into the crankcase.
Off-car chemical cleaning and forced regeneration cycle via diagnostic tool
Fitting new OEM or high-flow aftermarket filter unit, sensor calibration, and software update
Complete supply & fit of a tested rebuilt unit, upgraded oil pump, new ancillaries, 12-month warranty
On a Citroen C6 valued between £1,500 and £4,000, a new DPF or FAP unit often costs more than the vehicle's depreciated value. If your unit shows early warning signs like intermittent limp mode or frequent regeneration cycles, specialist cleaning is the most cost-effective route. However, if the Citroen C6 engine has suffered prolonged oil dilution or loss of compression from severe backpressure, a full Citroen C6 engine replacement is the only reliable long-term solution.
Whether you are dealing with a blocked FAP, a failing turbo, or worn injectors, the cost of repeated Citroen C6 engine repairs quickly outweighs the value of your executive saloon. Our network simplifies the process by instantly matching your registration and engine code to vetted UK Citroen C6 specialists who offer transparent, fixed-price supply and fit options. Every replacement unit is bench-tested, fitted with upgraded components that target known Citroen C6 failure points, and backed by a minimum 12-month unlimited mileage warranty with nationwide delivery. Compare prices from trusted specialists today and secure a reliable, warrantied Citroen C6 engine replacement without paying main dealer premiums.
Compare Citroen C6 Engine Replacement Prices Now →Disclaimer: 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 EngineMarket’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 Citroen C6 and engine code. Every engine supplied through EngineMarket carries a minimum 12‑month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Every citroen c6 engine type is available through our uk network with typical price ranges based on variant, engine code and budget.
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 Citroen C6 within hours.
Introduced during the early launch phase, the 2.0L HDi served as an entry-level diesel option for fleet-oriented Business trims before being phased out. It shares the PSA HDi architecture with later models but features a simpler turbo setup and earlier generation common-rail injection.
| Engine Code(s) | RHR |
| Compatible Models (UK) | Business |
| Production Years | Pre-facelift, 2005-2006 |
EGR cooler clogging, early turbo bearing wear on high-mileage units
Not sure which engine size your Citroen C6 needs? Enter your registration number above - we’ll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Citroen C6 specialists.
Fuel Type
Diesel dominates the Citroen C6 lineup across both pre-facelift and facelift generations, with the 2.2 HDi and 3.0 HDi V6 driving the majority of UK replacement enquiries due to high-mileage executive use and complex emissions hardware.
Not sure which fuel type your Citroen C6 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 Citroen C6 specialists.
Spanning 2005 to 2012, this timeline breaks down every major engine change across the Citroen C6 production run so owners can quickly identify their unit and compare rebuilt engine prices from UK specialists.
Not sure which year your Citroen C6 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 Citroen C6 specialists.
FAQ
Question 1
Citroen C6 engine replacement costs typically range from £1,200 to £5,500 depending on engine type and condition. The common 2.2 HDi DW12BTED4 units start around £1,200-£3,200 for rebuilt supply-only, while rare 3.0 HDi V6 DT20C engines command £2,200-£5,500. Supply and fit labour adds £600-£1,200 depending on workshop location.
Key points
Question 2
Yes, replacing a Citroen C6 engine is often worthwhile given rising classic executive saloon values and lower replacement costs versus buying another used car. A rebuilt DW12BTED4 2.2 HDi from £1,200 extends life significantly with warranty protection, making financial sense for well-maintained Exclusive or Lignage models with good service history.
Key points
Question 3
The 2.2 HDi DW12BTED4 is generally the most reliable Citroen C6 engine, with simpler architecture and wider parts availability than the complex 3.0 HDi V6 DT20C. While both suffer DPF and turbo issues on high mileage, the inline-four 2.2 HDi is easier and cheaper to repair or replace when failures occur.
Key points
Question 4
Citroen C6 2.2 HDi DW12BTED4 engines most commonly fail due to DPF/FAP blockage from short urban journeys, turbo actuator sticking, and EGR valve carbon buildup. These issues create excessive exhaust backpressure or oil contamination, leading to power loss, limp mode, and eventually internal engine damage if ignored.
Key points
Question 5
Citroen C6 3.0 HDi V6 DT20C engines deliver refined power but require meticulous maintenance to avoid costly failures. Common issues include turbo actuator faults, piezo injector degradation, and FAP additive system malfunctions above 90,000 miles. With proper servicing and motorway use, these flagship diesels can remain reliable, but replacement costs are significantly higher than the 2.2 HDi.
Key points
Question 6
Your Citroen C6 engine code appears on the engine block sticker, V5C logbook section D.2, or by entering your registration on the DVLA website. Common codes include DW12BTED4 variants (4HT/4HP/4HR) for 2.2 HDi models and DT20C for 3.0 HDi V6 facelift units. Accurate code identification ensures you receive the correct replacement engine.
Key points
Question 7
Some Citroen C5 engines share codes with the C6, notably the DW12BTED4 2.2 HDi, but direct swaps require careful verification of ECU mapping, mounting points, and ancillary compatibility. Never assume interchangeability - always confirm the exact engine code matches your C6's original specification to avoid costly installation errors or warranty voidance.
Key points
Question 8
Citroen C6 engine replacement typically takes 2-5 working days from order to completion, depending on engine availability and workshop scheduling. Supply-only rebuilt units dispatch within 3-5 days, while supply and fit appointments require additional time for removal, installation, ECU coding, and road testing at your chosen UK specialist workshop.
Key points
Question 9
Every Citroen C6 replacement engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty covering parts and labour against manufacturing defects. Rebuilt and reconditioned units often carry extended coverage, while used engines typically offer 3-6 months. Always confirm exact warranty terms with your chosen specialist before accepting a quote.
Key points
Question 10
Choose a reconditioned Citroen C6 engine for maximum reliability and warranty protection, especially for high-mileage vehicles you plan to keep. Used engines offer lower upfront cost (£600-£1,800) but carry higher risk and shorter warranty. For the 2.2 HDi DW12BTED4 or 3.0 HDi V6 DT20C, rebuilt units provide upgraded components addressing known failure points.
Key points
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