What are the signs of AdBlue failure in an Audi Q3 35 TDI-

Common symptoms include dashboard warnings about AdBlue levels, a countdown to "Engine will not start in X miles", and NOx sensor fault codes. You may also notice reduced engine power or failed emissions tests. Crystallisation around the AdBlue injector is a common visual clue. ECU fault codes for NOx sensor circuit or dosing module. Limp mode activation to protect the emissions system.

Is it worth replacing the engine in an Audi Q3 35 TDI-

For F3 generation cars (2018-present) valued £14,000-£28,000, a rebuilt engine at £2,800-£4,500 typically represents excellent value if you plan to keep the car 2+ years. 35 TDI models retain strong residual values. Rebuilt engine cost is a small percentage of total vehicle value. Always check for timing chain and turbo health before committing.

Audi 35 TDI SPECIALISTS

Audi Q3 35 TDI Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Audi Q3 35 TDI engine specialists. Compare prices on reconditioned, rebuilt and used engines for the DFGA 2.0 TDI engine code across the F3 generation.

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3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Audi Q3 35 TDI Engine History & Specs at a Glance

The 35 TDI badge was introduced in the F3 generation as part of Audi's WLTP naming convention, denoting the efficient 150hp 2.0 TDI (EA288 Evo) engine that replaced the older "2.0 TDI 150" nomenclature.

2018
F3 generation launches, introducing the 35 TDI (150hp) with the DFGA engine code, featuring updated EA288 Evo architecture and AdBlue integration.
2020
Minor updates to the EA288 Evo AdBlue and DPF systems for stricter Euro 6d-TEMP compliance across the 35 TDI range.
2023
Facelifted F3 continues with the refined DFGA engine, maintaining the 150hp output with improved emissions software and mild-hybrid readiness on select trims.

Every engine fitted to the Audi Q3 35 TDI is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Audi Q3 35 TDI Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

DFGA — 2.0L Diesel EA288 Evo (2018-present)

Power Output: 150hp
Years Fitted: 2018-present

Can’t find your exact engine code?-> Get quotes for DFGA Audi Q3 35 TDI engine replacement

-> Get quotes for DFGA Audi Q3 35 TDI engine replacement

Common Problems

Audi Q3 35 TDI Engine Problems Repair Cost vs Replacement

The Audi Q3 35 TDI is generally robust when maintained properly, but high-mileage examples commonly face AdBlue system faults, DPF clogging, and occasional EGR cooler leaks. The DFGA code dominates replacement demand for this variant, particularly on F3 generation cars with 100k+ miles. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

AdBlue & NOx Sensor Failure

Affected: Audi Q3 35 TDI (DFGA, 2018-present)
Typical failure mileage: 70k-140k miles

Root cause

The AdBlue injector crystallises with urea deposits, or the NOx sensors fail electronically, causing the ECU to initiate a strict countdown to a non-start condition to comply with Euro 6 emissions regulations.

Repair options

Repair tier	Dealer price	Specialist price
AdBlue Injector / Sensor Swap	£600-£1,200	£400-£800
Full AdBlue Tank & Pump Assembly	£1,200-£2,200	£800-£1,500
Full Replacement - rebuilt/reconditioned engine	£3,800-£6,000	£2,800-£4,500 (matches Section 4 rebuilt figure)

Our recommendation

AdBlue faults rarely require a full engine replacement unless catastrophic collateral damage has occurred. Usually, a specialist AdBlue system overhaul resolves the non-start issue. However, if the EA288 engine has also suffered timing chain stretch or EGR cooler internal leaks simultaneously, a rebuilt engine becomes the most cost-effective route to restore the vehicle.

-> Compare rebuilt DFGA Audi Q3 35 TDI engine prices

DPF & EGR System Blockage

Affected: Audi Q3 35 TDI (DFGA, 2018-present)
Typical failure mileage: 100k-180k miles

Root cause

Short-trip urban driving prevents DPF regeneration cycles, causing soot buildup that eventually blocks the filter and forces the EGR valve into constant recirculation, reducing power and increasing emissions.

Repair options

Repair tier	Dealer price	Specialist price
DPF cleaning (off-car)	£400-£800	£250-£500
DPF replacement + EGR clean	£1,200-£2,500	£800-£1,500
Full Replacement - rebuilt/reconditioned engine	£3,800-£6,000	£2,800-£4,500 (matches Section 4 rebuilt figure)

Our recommendation

If the DPF failed due to driving patterns that won't change (e.g., you still do mostly short urban trips), even a new DPF will clog again. A rebuilt engine won't solve this unless you also address usage patterns. However, if DPF blockage caused turbo damage or severe oil dilution, replacement is the only safe option.

-> Compare rebuilt DFGA Audi Q3 35 TDI engine prices

Don't Let Engine Failure Write Off Your Audi Q3 35 TDI

The 35 TDI is a capable compact SUV engine when healthy, but AdBlue faults and DPF blockage are common on high-mileage examples. Rather than risking repeated repairs, a rebuilt engine from our specialist network includes upgraded components addressing these known failure points, backed by a 12-month unlimited-mileage warranty. Compare quotes today and save 30-50% versus dealer pricing while getting nationwide supply-and-fit service.

Compare Audi Q3 35 TDI Engine Replacement Prices Now ->

FAQ

Audi Q3 35 TDI Engine ReplacementFrequently Asked Questions

Everything Audi Q3 35 TDI owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A reconditioned Audi Q3 35 TDI engine costs £2,800-£4,500 supply-only, or £3,500-£6,000 fully fitted depending on supplier location and whether additional emissions components need replacement. Used engines start around £1,200 but carry higher risk.

DFGA (2018-present, 150hp): £2,800-£4,500 reconditioned
Supply & fit labour typically adds £600-£900

-> Get quotes for your specific Audi Q3 35 TDI engine code

Common symptoms include dashboard warnings about AdBlue levels, a countdown to "Engine will not start in X miles", and NOx sensor fault codes. You may also notice reduced engine power or failed emissions tests.

Crystallisation around the AdBlue injector is a common visual clue
ECU fault codes for NOx sensor circuit or dosing module
Limp mode activation to protect the emissions system

-> Compare rebuilt Audi Q3 35 TDI engine prices if multiple emissions faults exist

For F3 generation cars (2018-present) valued £14,000-£28,000, a rebuilt engine at £2,800-£4,500 typically represents excellent value if you plan to keep the car 2+ years.

35 TDI models retain strong residual values
Rebuilt engine cost is a small percentage of total vehicle value
Always check for timing chain and turbo health before committing

-> Get a tailored quote for your Audi Q3 35 TDI based on current value

A complete engine swap typically takes 1.5 to 2.5 days for a supply-and-fit service. The F3 generation requires additional time for AdBlue system priming, ECU component protection removal, and online immobiliser coding via ODIS (Audi's diagnostic system).

Engine removal and installation: 10-14 hours
ECU coding and AdBlue calibration: 2-4 hours
Road testing and DPF regeneration cycle: 2-3 hours

-> Book your Audi Q3 35 TDI supply-and-fit service today

The "35 TDI" badge is Audi's WLTP naming convention introduced in 2018 for the 150hp 2.0 TDI engine (DFGA code). Mechanically, it is the EA288 Evo engine family, featuring updated emissions mapping, AdBlue integration, and mild-hybrid alternator readiness compared to the pre-2018 "2.0 TDI 150" units.

2.0 TDI: Pre-2018 naming (various EA189/early EA288 codes)
35 TDI: Post-2018 WLTP naming (specifically 150hp DFGA)

-> Get quotes for your specific Audi Q3 35 TDI engine code

Yes, reconditioned 35 TDI engines from our specialists include upgraded components addressing known failure points like AdBlue injector seals, DPF flow paths, and EGR cooler durability. With proper maintenance, a quality reconditioned unit should last 80k-120k miles.

All rebuilt engines include minimum 12-month unlimited-mileage warranty
Upgraded parts address original design weaknesses
Specialist rebuilders test compression and oil pressure before dispatch

-> Compare reconditioned Audi Q3 35 TDI engine prices from vetted UK specialists

Why Choose Us

Compare Audi Q3 35 TDI Engine Prices Today

Whether you need a DFGA replacement for your 2019 F3, a 2021 S line, or a 2023 Vorsprung, comparing quotes through EnginesMarket is free, fast and no-obligation. Our vetted UK specialists stock all 35 TDI engine codes and offer transparent pricing on used, reconditioned and rebuilt units. Get multiple quotes in minutes and save 30-50% versus dealer pricing, with every engine backed by a minimum 12-month warranty.

500+500+ Audi Q3 35 TDI engines supplied through our network

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