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Jimmy
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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Toyota IQ Engine ReplacementCompare Prices & Save
Get quotes today from trusted UK Toyota IQ engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available nationwide.
Toyota IQ 1.0L Petrol Engines - from £850 to £2,100
-> Rebuilt units from £850 · Common codes: 1KR-FE, 1KR-FE VVT-i, 1KR-DE
Toyota IQ 1.33L Petrol Engines - from £1,100 to £2,600
-> Rebuilt units from £1,100 · Common codes: 1NR-FE, 1NR-FE Dual VVT-i, 1NR-VE
Toyota IQ 1.4L Diesel Engines - from £1,200 to £2,800
-> Rebuilt units from £1,200 · Common codes: 1ND-TV, 1ND-FTV, 1ND-V
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How It Works
3 Simple Stepsto Finding the Best Toyota IQ Replacement Engine
Get Instant Quotes from Toyota Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Live UK Engine Market Data
What Are UK Drivers Paying for Toyota IQ Engine Replacement?
The table below shows typical UK rebuilt engine costs across Toyota IQ variants - compare failure causes, engine codes, fuel types, and price ranges to benchmark what UK drivers are paying.
Average Market Prices
- Toyota IQ (2009-2012) 1.4 D-4D Early2009-2012£1,150-£2,600DPF regeneration fault1ND-TVDiesel 1.4L
- Toyota IQ (2008-2015) 1.0 VVT-i2008-2015£850-£2,100EGR valve clogging1KR-FEPetrol 1.0L
- Toyota IQ (2008-2015) 1.33 Dual VVT-i2009-2015£1,100-£2,600Intake manifold crack1NR-FEPetrol 1.33L
- Toyota IQ (2008-2015) 1.4 D-4D2009-2014£1,200-£2,800Injector seal failure1ND-TVDiesel 1.4L
- Toyota IQ (2008-2011) 1.0 VVT-i Early2008-2011£800-£1,900Throttle body fault1KR-FEPetrol 1.0L
- Toyota IQ (2011-2015) 1.33 Dual VVT-i LCI2011-2015£1,150-£2,500Timing chain stretch1NR-FEPetrol 1.33L
Last updated: 31 May, 08:53
Customer Reviews
Trusted by Toyota IQ OwnersAcross the UK
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Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Toyota IQ engines through EngineMarket.
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Pete
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“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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Sophie
★★★★★
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Google
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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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Models We Cover
Toyota IQ Engine ReplacementAll Variants Covered
Core Petrol Range
Specs68hp
Years2008-2015
Rebuilt£850-£2,100
Diesel & Specialist Range
Trim-Specific Options
Variant Directory
All Toyota IQ Variants - Engine Replacement Coverage
A full alphabetical listing of every Toyota IQ 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
IQ 1.4 D-4DIQ 1.4 D-4D ManualIQ 1.4 D-4D Multidrive
Petrol Variants
IQ 1.0 VVT-iIQ 1.0 VVT-i ManualIQ 1.0 VVT-i MultidriveIQ 1.0 VVT-i Stop/StartIQ 1.33 Dual VVT-iIQ 1.33 Dual VVT-i CVTIQ 1.33 Dual VVT-i ManualIQ2 1.0 VVT-iIQ2 1.33 Dual VVT-iIQ3 1.33 Dual VVT-iIQ Collection 1.33 Dual VVT-iIQ CYCLE 1.0 VVT-iPerformance/Specialist VariantsIQ EVIQ GRMN Concept (limited)
Engine Codes
Toyota IQ Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Toyota IQ 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.
Petrol Engines
Extracted from detailed petrol and performance engine families across Toyota IQ variants.
Diesel Engines
Extracted from detailed diesel engine families across Toyota IQ variants.
Can't find your engine code?
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 Toyota IQ engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Common Problems
Toyota IQ Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
1. Toyota IQ Engine Stalling
Why 1KR-FE Units Cut Out at Idle
Affected Models
Toyota IQ 1.0 VVT-i, IQ2 1.0 (2008-2015, 1KR-FE)
Typical Failure Mileage
50,000-85,000 miles
Root Cause
Carbon buildup on the electronic throttle body and idle air control valve disrupts airflow calibration, causing intermittent stalling when stopping or idling.
Repair Options & Estimated Costs (UK ranges)
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - Throttle Body Clean/Reset Minor | £180 - £320 | £95 - £180 | Remove, clean throttle body and IACV, reset ECU adaptation values | Temporary fix; may recur if carbon buildup continues |
Intermediate - Throttle Body Replacement Intermediate | £450 - £750 | £280 - £480 | Fit new OEM throttle body assembly, recalibrate, road test | Reliable solution if stalling is throttle-related only |
Full Replacement - Rebuilt 1KR-FE Engine Best Value | £1,800 - £3,200 | £850 - £2,100 | Supply & fit rebuilt engine with upgraded components, 12-month warranty | Best value if stalling indicates deeper internal wear |
Our Recommendation
Best next step for toyota iq engine stalling
For IQs under £3,000 value, start with a specialist throttle clean (£95-£180). If stalling persists or the engine has over 80k miles, a rebuilt 1KR-FE from £850 often represents better long-term value than repeated repairs.
Don't Let Engine Failure Write Off Your Toyota IQ
The Toyota IQ's compact design makes engine access challenging, but our UK network of specialists simplifies replacement. Whether you need a reconditioned 1KR-FE, rebuilt 1NR-FE, or refurbished 1ND-TV, compare prices from vetted suppliers offering supply-only or full supply & fit. Every engine includes upgraded components addressing known failure points and a minimum 12-month unlimited mileage warranty. Avoid main dealer premiums and get back on the road with confidence.
Compare Toyota IQ Engine Replacement Prices Now →Toyota IQ Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Affected Models
Toyota IQ 1.0 VVT-i, IQ2 1.0 (2008-2015, 1KR-FE)
Typical Failure Mileage
50,000-85,000 miles
Root Cause
Carbon buildup on the electronic throttle body and idle air control valve disrupts airflow calibration, causing intermittent stalling when stopping or idling.
Minor - Throttle Body Clean/Reset
Dealer
£180 - £320
Specialist
£95 - £180
Remove, clean throttle body and IACV, reset ECU adaptation values
Temporary fix; may recur if carbon buildup continues
Intermediate - Throttle Body Replacement
Dealer
£450 - £750
Specialist
£280 - £480
Fit new OEM throttle body assembly, recalibrate, road test
Reliable solution if stalling is throttle-related only
Full Replacement - Rebuilt 1KR-FE Engine
Dealer
£1,800 - £3,200
Specialist
£850 - £2,100
Supply & fit rebuilt engine with upgraded components, 12-month warranty
Best value if stalling indicates deeper internal wear
Our Recommendation
Best next step for toyota iq engine stalling
For IQs under £3,000 value, start with a specialist throttle clean (£95-£180). If stalling persists or the engine has over 80k miles, a rebuilt 1KR-FE from £850 often represents better long-term value than repeated repairs.
Don't Let Engine Failure Write Off Your Toyota IQ
The Toyota IQ's compact design makes engine access challenging, but our UK network of specialists simplifies replacement. Whether you need a reconditioned 1KR-FE, rebuilt 1NR-FE, or refurbished 1ND-TV, compare prices from vetted suppliers offering supply-only or full supply & fit. Every engine includes upgraded components addressing known failure points and a minimum 12-month unlimited mileage warranty. Avoid main dealer premiums and get back on the road with confidence.
Compare Toyota IQ 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 Toyota IQ and engine code. Every engine supplied through EngineMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
12-Month Warranty
Upgraded Components
Nationwide UK Delivery
Save vs Main Dealer Price
Replacement Engine Options
Toyota IQ Engine TypesOptions, Costs & What to Expect
Every Toyota IQ 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 Toyota IQ within hours.
Engine Sizes
Toyota IQ Engines by SizeFind the Right Displacement for Your Variant
Toyota IQ Petrol Engine Sizes
The 1.0L 1KR-FE three-cylinder VVT-i powered entry-level IQ models from launch, offering exceptional fuel economy for urban driving while maintaining adequate performance for city use.
| Engine Code(s) | 1KR-FE, 1KR-FE VVT-i, 1KR-DE |
| Compatible Models (UK) | IQ, IQ 1.0 VVT-i, IQ2 1.0, IQ CYCLE 1.0, IQ 1.0 Stop/Start |
| Production Years | 2008-2015 |
Common Failure Points
Watch for these known weak points
EGR valve clogging, throttle body contamination, intake manifold cracking on early units
Not sure which engine size your Toyota IQ 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 Toyota IQ specialists.
Toyota IQ Engines Fuel Type
Toyota IQ Engines by Fuel Type
Toyota IQ Petrol Engines
Toyota IQ Petrol Engines
Petrol engines dominated the IQ range, with the 1.0L 1KR-FE and 1.33L 1NR-FE offering economical urban mobility and generally reliable service with proper maintenance.
Common Toyota IQ Petrol Engine Families
1KR-FE - Entry-level 1.0L three-cylinder; high replacement demand due to EGR/throttle issues
1NR-FE - 1.33L four-cylinder Dual VVT-i; stronger performance for IQ2/IQ3 trims
Found In
First Generation (2008-2015) - 1KR-FE, 1NR-FE
Known For
Excellent fuel economy for city driving (45-55 mpg real-world)
EGR valve and throttle body carbon buildup on 1KR-FE units
Intake manifold cracking on higher-mileage 1NR-FE engines
Generally robust with regular servicing and quality oil changes
Typical Petrol Models
IQ 1.0 VVT-i
IQ2 1.0 / 1.33
IQ3 1.33
IQ Collection 1.33
IQ CYCLE 1.0
Not sure which fuel type your Toyota IQ 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 Toyota IQ specialists.
Engine Years
Toyota IQ Engines by YearWhat Was Fitted & When
This timeline covers all major engine changes across the Toyota IQ's UK production run (2008-2015), helping owners quickly identify their engine and compare rebuilt prices from UK specialists.
2008 - 2009 - Launch Generation: 1KR-FE Petrol Debut
Major Engine Changes1 engine highlights
The IQ launched with the economical 1.0L 1KR-FE petrol engine, establishing the model's city-car credentials.
Key Changes
Toyota IQ launched in UK with 1.0L 1KR-FE petrol engine only
Compact three-cylinder VVT-i design prioritising fuel economy
Initial trim: IQ and IQ2 with manual transmission
Known For
Exceptional urban fuel economy (45-50 mpg real-world)
Early units prone to throttle body calibration issues
Tight engine bay complicates DIY maintenance
Strong residual values for low-mileage examples
Main Engines
1KR-FE - 1.0L petrol (IQ, IQ2)
Popular Models
Toyota IQ 1.0 VVT-i
Toyota IQ2 1.0 VVT-i
Engine Codes Covered
1KR-FE
Common Replacement Enquiries
Toyota IQ 1.0 engine stalling
Toyota IQ 1KR-FE throttle body
Toyota IQ 1.0 replacement cost
Get quotes for 2008-2009 Toyota IQ replacement engines
2008 - 2009 - Launch Generation: 1KR-FE Petrol Debut
Major Engine Changes1 engine highlights
The IQ launched with the economical 1.0L 1KR-FE petrol engine, establishing the model's city-car credentials.
Key Changes
Toyota IQ launched in UK with 1.0L 1KR-FE petrol engine only
Compact three-cylinder VVT-i design prioritising fuel economy
Initial trim: IQ and IQ2 with manual transmission
Known For
Exceptional urban fuel economy (45-50 mpg real-world)
Early units prone to throttle body calibration issues
Tight engine bay complicates DIY maintenance
Strong residual values for low-mileage examples
Main Engines
1KR-FE - 1.0L petrol (IQ, IQ2)
Engine Codes Covered
1KR-FE
Popular Models
Toyota IQ 1.0 VVT-i
Toyota IQ2 1.0 VVT-i
Common Replacement Enquiries
Toyota IQ 1.0 engine stalling
Toyota IQ 1KR-FE throttle body
Toyota IQ 1.0 replacement cost
Get quotes for 2008-2009 Toyota IQ replacement engines
Year Finder
Not sure which year your Toyota IQ was built?
Not sure which year your Toyota IQ 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 Toyota IQ specialists.
FAQ
Toyota IQ Engine ReplacementFrequently Asked Questions
Question 1
How much does it cost to replace a Toyota IQ engine?
Rebuilt Toyota IQ engines typically cost £850-£2,800 supply-only depending on engine code and condition. Supply & fit services add £450-£850. Get tailored quotes via our comparison tool.
Key points
- • 1KR-FE 1.0L petrol rebuilt: £850-£2,100 supply only
- • 1NR-FE 1.33L petrol rebuilt: £1,100-£2,600 supply only
- • 1ND-TV 1.4L diesel rebuilt: £1,200-£2,800 supply only
- • Supply & fit adds £450-£850 depending on workshop location
Question 2
Is it worth replacing the engine on a Toyota IQ?
Yes, if your IQ is otherwise sound and valued under £3,500. A rebuilt engine from £850 often costs less than vehicle depreciation, extending life affordably.
Key points
- • Toyota IQ market value typically £1,500-£4,000 depending on spec
- • Rebuilt engine cost often lower than vehicle depreciation
- • Supply & fit options avoid DIY complexity in tight engine bay
- • 12-month warranty protects your investment post-replacement
Question 3
What is the most reliable Toyota IQ engine?
The 1.33L 1NR-FE petrol is generally considered the most robust IQ engine when maintained properly, though all three main engines can be reliable with correct servicing.
Key points
- • 1NR-FE 1.33L petrol: robust four-cylinder design, fewer inherent weaknesses
- • 1KR-FE 1.0L: reliable but prone to EGR/throttle issues if neglected
- • 1ND-TV 1.4L diesel: strong but requires DPF-aware driving patterns
- • Regular oil changes with correct specification critical for all variants
Question 4
What causes Toyota IQ engines to stall at idle?
Stalling on 1KR-FE engines is usually caused by carbon buildup on the throttle body or idle air control valve disrupting airflow calibration at low RPM.
Key points
- • Carbon deposits accumulate on electronic throttle body over time
- • Idle air control valve can stick or become contaminated
- • ECU adaptation values may need resetting after cleaning
- • Specialist cleaning costs £95-£180 versus £850+ for engine replacement
Question 5
Can I replace a 1.0L IQ engine with a 1.33L unit?
Technically possible but not recommended due to different mounting points, wiring looms, ECU calibration and transmission compatibility requiring extensive modification.
Key points
- • 1KR-FE and 1NR-FE have different engine mount locations
- • Wiring harnesses and ECU software are engine-code specific
- • Transmission bellhousing patterns may not match
- • Cost of conversion often exceeds value of a standard IQ
Question 6
How long does a rebuilt Toyota IQ engine last?
A properly rebuilt Toyota IQ engine with upgraded components addressing known failure points can reliably deliver 60,000-100,000+ miles with regular maintenance.
Key points
- • Quality rebuilds replace wear items: rings, bearings, seals, gaskets
- • Upgraded components target model-specific weaknesses
- • Regular oil changes with correct spec essential for longevity
- • 12-month unlimited mileage warranty provides initial peace of mind
Question 7
Does a used Toyota IQ engine come with warranty?
Most reputable UK suppliers offer minimum 3-month warranty on used IQ engines; EngineMarket network suppliers provide minimum 12-month coverage on rebuilt units.
Key points
- • Used engine warranties typically 3-6 months, parts only
- • Rebuilt/reconditioned engines often include 12-month unlimited mileage
- • Always confirm warranty terms, exclusions and claim process before purchase
- • Supply & fit services may include additional labour warranty
Question 8
What are common signs my Toyota IQ needs an engine replacement?
Key indicators include persistent stalling, excessive oil consumption (>1L/1,000 miles), loud timing chain rattling, blue exhaust smoke, or multiple unresolved fault codes.
Key points
- • Blue smoke under acceleration suggests piston ring or valve seal wear
- • Loud rattling on cold start may indicate timing chain stretch
- • Oil consumption exceeding 1L per 1,000 miles signals internal wear
- • Multiple fault codes with poor performance warrant professional assessment
Question 9
Can I fit a Toyota IQ engine myself?
Possible for experienced mechanics but not recommended due to the IQ's extremely tight engine bay requiring specialist tools and knowledge of compact-car procedures.
Key points
- • Toyota IQ engine bay is among the tightest in its class
- • Access to mounts, wiring and ancillaries requires specific techniques
- • ECU adaptation and immobiliser pairing need diagnostic equipment
- • Supply & fit services from £450 often represent better value than DIY risk
Question 10
How do I find the engine code on my Toyota IQ?
The engine code is stamped on the engine block (visible near the gearbox junction) and listed on your V5C registration document under "Engine number" or "Fuel type" details.
Key points
- • Common codes: 1KR-FE (1.0L petrol), 1NR-FE (1.33L petrol), 1ND-TV (1.4L diesel)
- • V5C document lists engine capacity and fuel type for verification
- • DVLA lookup via registration confirms exact variant and engine spec
- • Enter your reg on EngineMarket to auto-identify compatible engines
Why Choose Us
Why UK Toyota IQ Owners Trust EngineMarket
Find the best Toyota IQ engine replacement near you
Compare engine prices for Toyota IQ in the UK and get competitive quotes from garages near you.
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