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Audi CRVC Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 3.0-litre supercharged V6 TFSI engine fitted to late-generation Audi A6, A7, and Q7 models, renowned for its smooth power delivery and robust EA837 architecture. Reconditioned units are available from £2,800 , with approximately 120 UK replacement requests recorded for primary host chassis in 2025 .
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£1,500
Reconditioned from
£2,800
Rebuilt from
£4,500
GB
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Key Specs
Audi CRVC - Specifications at a Glance
Engine Code
CRVC
Fuel
Petrol
Configuration
3.0L V6, supercharged (EA837 Gen 2)
Power Output(s)
333 PS (245 kW) / 440 Nm
Years Produced
2015-2018
UK Models Fitted
3 Audi model lines - full list in Compatibility below
2025 UK Replacement Requests
~120
Replaced
Earlier 3.0 TFSI (EA837 Gen 1) / 3.2 FSI
Replaced By
3.0 TFSI V6 Turbo (EA839)
Most Common Failure
Supercharger isolator wear & intake carbon buildup
Reconditioned Price Range
£2,800-£5,500 supply-only
Vetted UK specialists for CRVC replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which Audi Models Use the CRVC-
The CRVC is the high-output, late-cycle revision of Audi’s 3.0-litre supercharged V6. It was deployed exclusively in Audi’s premium executive and large SUV lines during the C7.5 facelift and early 4M generations, offering a highly reliable alternative to the complex twin-turbo V8s of the same era.
02
Audi A7
03
Audi Q7
CROSS-BRAND
CRVC is documented across 3 BMW applications spanning Audi A6, Audi A7, Audi Q7. Registration lookup confirms the exact suffix before quotes are sent.
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Prices
Audi CRVC Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £1,500-£2,500 | £2,700-£4,100 | 3-6 months |
Reconditioned | £2,800-£5,500 | £4,000-£7,100 | 12-24 months |
Rebuilt | £4,500-£7,000 | £5,700-£8,600 | 12-24 months |
The replacement cost for the CRVC is heavily influenced by the condition of the Eaton TVS1900 supercharger and whether the intake valves have been recently walnut-blasted. A unit with a documented history of isolator replacement and carbon cleaning will command a premium but prevents immediate post-installation maintenance costs. For a detailed breakdown of labour and parts across Audi's V6 range, see our full reconditioned engine cost guide.
Labour Guide
Fitting a CRVC typically takes 12-16 hours at £75-£85/hr (independent specialist) - confirm exact labour when comparing quotes, as Q7 and A6 engine bay access is notably labour-intensive.
Price Factors
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Common Problems
Audi CRVC Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the CRVC, based on real-world data and verified failure patterns.
Verified issue focus: Supercharger isolator wear & intake carbon buildup.
1. Supercharger Isolator / Nose Coupler Wear - 2015-2018
1. Supercharger Isolator / Nose Coupler Wear - 2015-2018
Typical onset:
60,000-90,000 miles
What happens:
The plastic spring-loaded isolator inside the supercharger nose cone degrades over time. This causes a distinct metallic rattling or clattering noise on cold starts and during deceleration. If ignored, the wear can spread to the supercharger internals and the drive belt tensioner.
Repair vs replace:
The isolator can often be replaced without removing the engine or the supercharger from the vehicle. However, if the bearing or gears are damaged, the supercharger must be rebuilt or a full CRVC engine replacement becomes necessary.
Read more about this issue
2. Intake Valve Carbon Buildup - 2015-2018
2. Intake Valve Carbon Buildup - 2015-2018
Typical onset:
70,000-100,000 miles
What happens:
As a direct-injection engine, fuel is sprayed directly into the cylinder, bypassing the intake valves. Over time, oil vapour from the PCV system bakes onto the back of the valves, restricting airflow and causing rough idling, misfires, and a noticeable loss of power.
Repair vs replace:
Professional walnut blasting or manual cleaning resolves the issue entirely. A full CRVC engine replacement is never required for carbon buildup unless severe, prolonged misfires have caused catastrophic catalytic converter failure or piston damage.
Read more about this issue
3. Thermostat Housing and Water Pump Leaks - 2015-2018
3. Thermostat Housing and Water Pump Leaks - 2015-2018
Typical onset:
80,000-120,000 miles
What happens:
The composite plastic thermostat housing and water pump assembly become brittle under repeated V6 heat cycles, leading to slow coolant weeping into the engine valley.
Repair vs replace:
The housing and pump are standard bolt-on replacements. However, because they sit deep in the "V" of the engine beneath the supercharger, labour costs are high. If coolant is allowed to pool and corrode the wiring harness, engine replacement may be the only viable fix.
Read more about this issue
The CRVC represents the final, most refined iteration of the EA837 supercharged V6 before Audi transitioned to the turbocharged EA839. It benefits from updated PCV valves and revised timing chain tensioners, making it one of the most robust modern Audi petrol engines when properly maintained .
Compare rebuilt CRVC prices with the supercharger and carbon issues already addressed
Engine Variants
How to Confirm You Have the CRVC
The CRVC engine code is stamped on a machined pad on the engine block near the bellhousing, and is also listed in section V.5 of your V5C logbook. It is most commonly confused with the lower-output CRED (272 PS) found in earlier A6/A7 models, or the newer CZSE (EA839 turbocharged V6) introduced in 2018. While they share similar displacements, the CRVC relies on a mechanical supercharger and specific engine mapping; attempting to mate an EA839 turbo unit to an EA837 wiring harness and transmission will result in total drivetrain failure.
Not sure which engine your car has- Enter your registration above - we'll confirm your exact CRVC fitment before any quotes are sent.
Easily Confused
Earlier 3.0 TFSI (EA837 Gen 1)
the first-generation supercharged V6 which shares the same core architecture but lacks the refined PCV valves and timing chain tensioner updates of the late-cycle CRVC.
Alternative / Next-Gen Code
3.0 TFSI V6 Turbo (EA839)
the turbocharged successor introduced in 2018, which swapped the Eaton TVS supercharger for a twin-scroll turbocharger, improving low-end torque and emissions compliance.
Related JLR Variants
CRED (272 PS)
the lower-output variant of the EA837 Gen 2 family fitted to earlier A6 and A7 models; owners should verify their power output, as ECU mapping and specific component tolerances differ.
Confirm the exact CRVC fitment
Not sure which engine your car has- Enter your registration above - we'll confirm your exact CRVC fitment before any quotes are sent.
Buying Guide
Buying a Replacement CRVC - What to Choose
Choosing the right replacement route depends on your budget, risk tolerance, and ownership goals. Here's a breakdown of your options.
Used:
A used CRVC engine is a viable option only if the seller can provide documentation proving the supercharger isolator has been upgraded and a recent walnut blast has been performed. Given the high labour costs of accessing the V6 valley in a Q7 or A6, installing a used unit with unknown carbon buildup is a significant financial risk.
Reconditioned:
A proper reconditioned CRVC replaces all wear-prone components, including the water pump, thermostat housing, and supercharger isolator, while verifying the timing chain stretch is within factory tolerances. This is the recommended route for most owners, ensuring the premium driving experience of the 3.0 TFSI is restored without immediate follow-up maintenance.
Rebuilt:
A full rebuild is justified if the original CRVC suffered catastrophic supercharger failure that sent metal debris into the intake, or if the owner plans to heavily tune the vehicle. The EA837 block is exceptionally strong, and a specialist rebuild can include upgraded forged components to safely handle high-horsepower applications.
Supply & Fit Line:
Our network pairs your CRVC with vetted UK Audi specialists who possess the specific locking tools and VCDS software required for V6 timing and supercharger calibration, offering nationwide delivery and a minimum 12-month warranty.
Vehicle Value Note:
The CRVC is typically found in 2015-2018 Audi A6, A7, and Q7 models, which retain strong market values between £14,000 and £45,000 . A reconditioned replacement at £2,800-£5,500 represents a highly viable financial investment, keeping the replacement cost well below the scrap threshold and preserving the value of these premium executive hosts.
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Related Engines
Engines Related to the Audi CRVC
Explore engines that are closely related to the Audi CRVC, including its predecessor, successor, and key family variants.
Predecessor
Earlier 3.0 TFSI (EA837 Gen 1)
the first-generation supercharged V6 which shares the same core architecture but lacks the refined PCV valves and timing chain tensioner updates of the late-cycle CRVC.
Successor
3.0 TFSI V6 Turbo (EA839)
the turbocharged successor introduced in 2018, which swapped the Eaton TVS supercharger for a twin-scroll turbocharger, improving low-end torque and emissions compliance.
Sibling
CRED (272 PS)
the lower-output variant of the EA837 Gen 2 family fitted to earlier A6 and A7 models; owners should verify their power output, as ECU mapping and specific component tolerances differ.
FAQ
Audi CRVCFrequently Asked Questions
Question 1How much does an Audi CRVC engine replacement cost-
A reconditioned Audi CRVC engine typically costs between £2,800 and £5,500 for supply only. Fitted prices generally range from £4,000 to £7,100 at an independent specialist, while used CRVC units are available from £1,500 but require careful inspection of the supercharger isolator.
- Fitted prices generally range from £4,000 to £7,100 at an independent specialist.
- Used CRVC units are available from £1,500 but require careful inspection of the supercharger isolator.
Question 2What is the most common problem with the CRVC engine-
The most documented failure pattern for the CRVC is supercharger isolator (nose coupler) wear and intake valve carbon buildup. The isolator typically degrades between 60,000 and 90,000 miles, causing a metallic rattle on cold starts, while carbon buildup restricts airflow, leading to rough idling and misfires if not walnut-blasted.
- The isolator typically degrades between 60,000 and 90,000 miles, causing a metallic rattle on cold starts.
- Carbon buildup restricts airflow, leading to rough idling and misfires if not walnut-blasted.
Question 3Which Audi models use the CRVC engine-
The CRVC 3.0 TFSI is fitted to Audi’s premium executive and large SUV lines during the C7.5 and early 4M generations. Primary applications include the Audi A6 C7 (Facelift) and Audi A7 C7 (Facelift) from 2015 to 2018, and it was also the standard petrol V6 in the Audi Q7 4M (2015-2018).
- Primary applications include the Audi A6 C7 (Facelift) and Audi A7 C7 (Facelift) from 2015 to 2018.
- It was also the standard petrol V6 in the Audi Q7 4M (2015-2018).
Question 4Should I buy a used or reconditioned CRVC engine-
A reconditioned CRVC is strongly recommended over a used unit for this specific high-output application. Proper reconditioning addresses the known supercharger isolator, water pump, and carbon buildup weaknesses, whereas used units are viable only with verifiable service history confirming these labour-intensive maintenance items have been completed.
- Proper reconditioning addresses the known supercharger isolator, water pump, and carbon buildup weaknesses.
- Used units are viable only with verifiable service history confirming these labour-intensive maintenance items have been completed.
Question 5How do I confirm my vehicle has the CRVC engine code-
You can confirm your vehicle has the CRVC by checking section V.5 of your V5C registration document. The code is also physically stamped on the engine block near the bellhousing, and it is commonly confused with the lower-output CRED or the newer turbocharged CZSE (EA839), which are not directly interchangeable.
- The code is also physically stamped on the engine block near the bellhousing.
- It is commonly confused with the lower-output CRED or the newer turbocharged CZSE (EA839), which are not directly interchangeable.
Compare Audi CRVC Engine Prices Today
Get a free, no-obligation price comparison tailored to your exact vehicle. Our registration lookup confirms your CRVC fitment before any quotes are sent, ensuring you receive accurate pricing from verified specialists. With reconditioned CRVC units starting from £2,800, comparing takes two minutes and could save you four figures on your replacement.
Vetted UK Specialists
Vetted UK specialists for CRVC replacements
Minimum 12-Month Warranty
Minimum 12-month warranty on reconditioned and rebuilt options
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Nationwide delivery plus supply and fit availability
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