1.5 D (TUD5) vs 2.0/2.2 D-4D: which engine is more reliable?

According to our risk index, the 1.5 D (TUD5) carries less risk than the 2.0/2.2 D-4D: 19/100 (low risk) versus 77/100 (very high risk). The 1.5 D (TUD5) has no documented serious faults; the 2.0/2.2 D-4D has 1 documented serious fault, the main one being «Warped cylinder head gasket and oil consumption on the 2.2 D-4D».

Risk index

1.5 D (TUD5)

Low risk · 0 serious faults

Lower risk

Risk index

2.0/2.2 D-4D

Very high risk · 1 serious fault

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

Reviewed on 2 November 202620 sources How we work

Is the 1.5 D (TUD5) reliable?

A small indirect-injection diesel, slow but simple, with a good reputation for durability once its early problems are behind it. Its documented weak point is the cylinder head gasket, with oil leaks that PSA corrected in stages between 1995 and 1998; other issues (high idle, pump leaks, glow plug connector) are occasional.^[1][2][3]

See the 3 of the 1.5 D (TUD5) faults

Is the 2.0/2.2 D-4D reliable?

No: the 2.0/2.2 D-4D family is among the most problematic Toyota diesels. The 2.2 block (2AD-FTV and 2AD-FHV D-CAT) has a large number of cases of warped cylinder head gaskets and oil consumption or dilution in the Avensis, RAV4, Auris, Corolla Verso and Verso; the EGR valve and injectors fail frequently across the whole family, and the D-CAT filter clogs up if the car is not driven regularly on open roads.^[4][5][6][7]

See the 4 of the 2.0/2.2 D-4D faults

Side-by-side comparison

Comparison of 1.5 D (TUD5) and 2.0/2.2 D-4D
Item	1.5 D (TUD5)	2.0/2.2 D-4D
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	—	—
Timing	Timing belt (dry)	Chain
Power	50–58 hp	116–177 hp
Production	1988–2004^[8][9][10]	2005–2018^{[11][12][13][14][15]}
Reliability
Risk index (what is it?)	19Low risk	77Very high risk
Documented faults	3	4
Of high or critical severity	0	1
Worst severity	Medium severity	Critical severity
Main faults	Medium severity: Oil leaks from the cylinder head gasket and crankshaft seal Medium severity: Injection pump: high idle and leaks Low severity: Glow plug faults: corroded connector and glow plugs	Critical severity: Warped cylinder head gasket and oil consumption on the 2.2 D-4D Medium severity: EGR valve clogged with soot Medium severity: Injector wear and failure
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.4 D 50 hp (TUD3Y, 1993-1994 on the 106)^[1][3] 1.5 D 54-58 hp (TUD5: VJZ, VJY and VJX, 1994-2003)^[1][16][17]	2.0 D-4D (1AD-FTV, 116-126 hp, 2005-2018)^[4][18]
AvoidVersions to avoid	None	2.2 D-4D (2AD-FTV, 136-150 hp, 2005-2015)^{[4][5][6][7][18][19][20]} 2.2 D-4D D-CAT (2AD-FHV, 174-177 hp, 2005-2015)^[5][18][19]

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

1.5 D (TUD5)

2.0/2.2 D-4D

See the 10 models with the 2.0/2.2 D-4D

Other comparisons

With the 1.5 D (TUD5)

With the 2.0/2.2 D-4D

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Sources

Every fact on this page links to its source. If you find an error, let us know.

Peugeot 106: fiche fiabilitéCaradisiac · Motoring press · consulted 2 November 2026 · in French
Citroën Saxo: fiche fiabilitéCaradisiac · Motoring press · consulted 2 November 2026 · in French
Quelle citadine d'occasion choisir ?L'argus · Motoring press · consulted 2 November 2026 · in French
Toyota Avensis (2003-2009) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Toyota Avensis (2008-2018) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Toyota RAV4 (2006-2012) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Toyota RAV4 (2013-2019) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
PSA TUD engineWikipedia (en) · Other source · consulted 2 November 2026
Peugeot 106Wikipedia (de) · Other source · consulted 2 November 2026 · in German
Peugeot 106 1.5 D 58 ch: fiabilité du moteurFiches-auto.fr · Owners' forum · consulted 2 November 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
Fiabilité Peugeot 106: pannes et avis des propriétairesFiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
Fiabilité Citroën Saxo: pannes et avis des propriétairesFiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
Toyota Auris (2007-2012) : 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