Audi Q7 30 TFSI / 55 TFSI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Audi Q7 30 TFSI / 55 TFSI 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
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From £5,000 to £8,500
Used from £1,500 · Reconditioned from £3,500 · Common codes: DZKA, CGWA, CZDA
From £1,500
Tested, bare/short engine
From £3,500
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 Q7 30 TFSI / 55 TFSI Replacement Engineto Finding the Best Audi Q7 30 TFSI / 55 TFSI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryAudi Q7 30 TFSI / 55 TFSI - Engine History & Specs at a Glance
The 55 TFSI badging on the Audi Q7 denotes the potent 3.0-litre V6 turbocharged petrol engine, introduced to replace the previous supercharged variants and offer a balance of performance and efficiency, often paired with mild-hybrid technology in later 4M models. (Note: "30 TFSI" is not a standard UK Audi Q7 engine designation; this page comprehensively covers the verified 55 TFSI 3.0L V6 powertrains that define this performance tier).
Variant HistoryAudi Q7 30 TFSI / 55 TFSI - Engine History & Specs at a Glance
The 55 TFSI badging on the Audi Q7 denotes the potent 3.0-litre V6 turbocharged petrol engine, introduced to replace the previous supercharged variants and offer a balance of performance and efficiency, often paired with mild-hybrid technology in later 4M models. (Note: "30 TFSI" is not a standard UK Audi Q7 engine designation; this page comprehensively covers the verified 55 TFSI 3.0L V6 powertrains that define this performance tier).
Audi Q7 30 TFSI / 55 TFSI
Fuel TypePetrol (MHEV from 2018)
Engine Size Range3.0L V6
Power Output Range252hp-340hp across the variant's historyEngine History Timeline
CGWA and CZDA engine codes introduced (3.0L V6 TFSI 252hp) for the 4M generation, replacing the previous supercharged units with a more efficient twin-scroll turbo setup.
DZKA engine code introduced (3.0L V6 TFSI 340hp) for the 55 TFSI badge, integrating a 48V mild-hybrid system (MHEV) for improved efficiency, smoother stop-start operation, and enhanced torque delivery.
Key Specs Snapshot
Fuel TypePetrol (MHEV from 2018)Engine Size Range3.0L V6Power Output Range252hp-340hp across the variant's historyYears Produced2015-presentEvery engine fitted to the Audi Q7 30 TFSI / 55 TFSI is covered below, with UK rebuilt pricing and known failure points.
Audi Q7 30 TFSI / 55 TFSI Engine Codes - Specifications & Replacement CostAudi Q7 30 TFSI / 55 TFSI Engine Codes - Specifications & Replacement Cost
3.0L Petrol TFSI (2015-2018)
Power Output252hpYears Fitted2015-2018
Compatible Trim Levels
- 55 TFSI
- 55 TFSI S line
- 55 TFSI Black Edition
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,500-£3,000
Reconditioned
Addressed known issues, tested
£3,500-£5,500
Rebuilt
Full teardown, upgraded internals
£5,000-£7,500
Common Failure
High-pressure fuel pump (HPFP) wear and plastic water pump impeller degradation, typically observed between 60,000 and 100,000 miles.
The Audi Q7 30 TFSI / 55 TFSI is generally robust, but specific cooling and fuel system components carry known vulnerabilities. The CGWA and CZDA codes dominate earlier replacement demand for this variant due to HPFP and water pump weaknesses. 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 Q7 30 TFSI / 55 TFSI Loses Coolant or Runs Lean
Affected Vehicles
Audi Q7 30 TFSI / 55 TFSI (CGWA, CZDA, DZKA, 2015-present)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
Plastic impellers within the water pump degrade under sustained heat cycles, and HPFP internal seals wear, leading to coolant loss or lean running conditions that can cause severe internal damage if ignored.
Why It Happens
Plastic impellers within the water pump degrade under sustained heat cycles, and HPFP internal seals wear, leading to coolant loss or lean running conditions that can cause severe internal damage if ignored.
Dealer (parts + labour)
£800-£1,500
Specialist (parts + labour)
£500-£900
What it involves
Replacement of water pump, thermostat housing, and HPFP inspection
Suitability
Highly recommended as preventative maintenance at 80k miles
1 - 2 daysDealer (parts + labour)
£7,000-£10,000
Specialist (parts + labour)
£5,000-£8,500
What it involves
Supply & fit, upgraded cooling and fuel components addressing the original failure point, 12-month warranty
Suitability
Necessary if lean running or overheating has caused cylinder scoring or head 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 | £800-£1,500 | £500-£900 | Replacement of water pump, thermostat housing, and HPFP inspection | Highly recommended as preventative maintenance at 80k miles | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £7,000-£10,000 | £5,000-£8,500 | Supply & fit, upgraded cooling and fuel components addressing the original failure point, 12-month warranty | Necessary if lean running or overheating has caused cylinder scoring or head damage | 1 - 2 days |
Our Recommendation
Our Recommendation
For the 55 TFSI, preventative replacement of the water pump and thermostat housing is highly advised before catastrophic failure occurs. If you are dealing with an earlier CGWA or CZDA unit that has suffered HPFP or timing chain failure, a rebuilt engine with the revised components is the most reliable long-term solution.
Don't Let Engine Failure Write Off Your Audi Q7 30 TFSI / 55 TFSI
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 3.0L V6 TFSI platform. 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 Q7 30 TFSI / 55 TFSI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Audi Q7 30 TFSI / 55 TFSI Engine ReplacementFrequently Asked Questions
Question 1How much does an Audi Q7 30 TFSI / 55 TFSI engine replacement cost-
The cost depends on the condition of the replacement unit and the specific engine code. Based on verified market estimates for V6 TFSI units, used engines typically range from £1,500 to £4,000, while reconditioned units cost between £3,500 and £6,500.
- 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 HPFP or water pump failure in an Audi Q7 55 TFSI-
Water pump and HPFP issues in the 55 TFSI often present as a gradual loss of coolant without obvious external leaks, or a check engine light indicating a lean running condition.
- A sweet smell from the engine bay or white smoke from the exhaust.
- The engine temperature gauge rising or warning lights illuminating.
- In severe cases, catastrophic overheating leading to cylinder head damage.
Question 3Is it worth replacing the engine in an Audi Q7 55 TFSI-
Yes, given that 4M generation models typically hold a market value of £15,000 to £45,000, 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 cooling or fuel system 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 Q7 55 TFSI engine replacement take-
A straightforward supply and fit service for this variant typically takes between 3 to 5 working days, depending on the specialist's workload and the complexity of the quattro drivetrain and 48V MHEV calibration.
- Supply-only orders may take 48-72 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 Q7 quattro system or warranty-
A professionally installed, OEM-spec replacement engine with documented service history and a valid warranty will preserve your vehicle's resale value and quattro functionality.
- 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 quattro and MHEV integration.
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