1AD-FTV
2.0 D-4D (1AD-FTV, 116-126 hp, 2005-2018) engine: faults and reliability
What changes in this version
This is the 2.0-litre (1,998 cc) variant of the family, with less power and torque than the 2.2. It replaced the old 1CD-FTV from 2005-2006 and continued with power tweaks (116, 122, 124, 125 or 126 hp depending on year and model) until the end of European production in 2018, adding a particulate filter in its last versions to meet Euro 5/6.[3][4][5][6][7]
Engine codes of this version: 1AD-FTV.
Faults of the 1AD-FTV engine
The documented engine faults that affect this version and its years, from most to least important.
- 1Medium severityFrequency: Very frequentEmissions controlEGR valve clogged with sootYes: the EGR valve clogs with soot very frequently across the whole 1AD/2AD D-4D family, especially with urban use and short journeys, and it usually causes a loss of power or the engine warning light to come on.Appears at around 45,000 km
- 2Medium severityFrequency: CommonInjectionInjector wear and failureYes: the common-rail injectors fail frequently in this family, with cases documented from 30,000 km and repairs ranging from €800 (one injector) to €1,900 (several) according to the owners consulted.Appears at around 30,000 km
- 3Medium severityFrequency: CommonEmissions controlD-CAT particulate filter cloggingYes: the D-CAT particulate filter, and that of later versions without the badge, becomes saturated with soot if the car does not cover enough open-road miles, with the DPF warning light on and forced regenerations costing around €180 at a workshop.
Cars fitted with the 1AD-FTV engine
Open each car to see all its faults with this engine and what to check before buying it.
Toyota
- Toyota Avensis T25126 D-4D · 150 D-4D · 177 D-4D D-CAT2005–2008[1][4][5]
- Toyota Avensis T27124 D-4D · 126 D-4D · 150 D-4D · 177 D-4D D-CAT2008–2018[4][5][8]
- Toyota RAV4 IV124 D-4D · 150 D-4D2013–2018[9][10]
- Toyota Auris I126 D-4D · 177 D-4D D-CAT2006–2012[2][6]
- Toyota Auris II124 D-4D2012–2018[6][11]
- Toyota Corolla Verso116 D-4D · 136 D-4D · 177 D-4D D-CAT2004–2009[12]
- Toyota Verso124 D-4D · 150 D-4D · 177 D-4D D-CAT2009–2015[7][13]
Frequently asked questions
Is the 1AD-FTV engine reliable?
Our verdict is “With caution”. It has documented EGR valve and injector faults as frequent as the 2.2, but head gasket and oil dilution cases are proportionally far fewer in the sources consulted; check the EGR and injector history before buying.[1][2]
What faults does the 1AD-FTV engine have?
The documented ones that affect this version, by importance: EGR valve clogged with soot (medium severity), injector wear and failure (medium severity) and d-CAT particulate filter clogging (medium severity).
Are you buying a car with the 1AD-FTV engine?
We will put you in touch with a partner only if you authorise it in the form.
Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.
Sources
Every fact on this page links to its source. If you find an error, let us know.
- Toyota Avensis (2003-2009) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota Auris (2007-2012) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota AD engineWikipedia · Other source · consulted 27 September 2026
- Toyota AvensisWikipedia · Other source · consulted 27 September 2026
- Toyota AvensisWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
- Toyota AurisWikipedia · Other source · consulted 27 September 2026
- Toyota VersoWikipedia · Other source · consulted 27 September 2026
- Toyota Avensis (2008-2018) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota RAV4Wikipedia · Other source · consulted 27 September 2026
- Toyota RAV4 (2013-2019) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota Auris (2012-2018) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota Corolla Verso : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Toyota Verso : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French