TDV6 / SDV6 vs 2.0 DTI and 2.2 DTI: which engine is more reliable?

According to our risk index, the 2.0 DTI and 2.2 DTI carries less risk than the TDV6 / SDV6: 38/100 versus 46/100 (both moderate risk). The TDV6 / SDV6 has 2 documented serious faults, the main one being «Crankshaft breakage and spinning main bearing shells»; the 2.0 DTI and 2.2 DTI has 2 documented serious faults, the main one being «VP44 injection pump and air mass meter failure».

Risk index

TDV6 / SDV6

Moderate risk · 2 serious faults

Risk index

2.0 DTI and 2.2 DTI

Moderate risk · 2 serious faults

Lower risk

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

Reviewed on 5 October 202613 sources How we work

Is the TDV6 / SDV6 reliable?

The Land Rover and Jaguar TDV6/SDV6 diesel V6 engines, shared with Peugeot and Citroën, have a serious documented fault: crankshaft and main bearing shells on the 3.0, and the belt-driven oil pump on the 2.7. Insist on a service history and weigh up the repair cost before buying.^[1][2][3]

See the 3 of the TDV6 / SDV6 faults

Is the 2.0 DTI and 2.2 DTI reliable?

The 2.0 DTI and 2.2 DTI (X20DTH/Y20DTH and Y22DTR) are the direct-injection diesels with a Bosch VP44 pump that Opel fitted between 1997 and 2005 to the Astra G, Vectra B and C, Zafira A, Signum and Omega B. German Wikipedia documents recurring VP44 pump and air mass meter failures in its early years, and a German used-car buying guide singles out the EGR valve as its main weak point even once the engine had matured, in the Vectra C.^[4][5]

See the 3 of the 2.0 DTI and 2.2 DTI faults

Side-by-side comparison

Comparison of TDV6 / SDV6 and 2.0 DTI and 2.2 DTI
Item	TDV6 / SDV6	2.0 DTI and 2.2 DTI
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,720 cm³	—
Timing	Wet belt (belt-in-oil)	Chain
Power	188–302 hp	100–125 hp
Production	2004–2018^[6]	1997–2005^{[4][7][8][9][10]}
Reliability
Risk index (what is it?)	46Moderate risk	38Moderate risk
Documented faults	3	3
Of high or critical severity	2	2
Worst severity	Critical severity	High severity
Main faults	Critical severity: Crankshaft breakage and spinning main bearing shells Critical severity: Broken oil pump housing and timing belt jumping on the 2.7 Medium severity: Turbo and pneumatic actuator failure on the 3.0 TDV6/SDV6	High severity: VP44 injection pump and air mass meter failure High severity: Seized or leaking turbocharger Medium severity: Clogged or faulty EGR valve
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	2.7 TDV6 (276DT/DT17, 2004-2010)^[3][11] 3.0 TDV6/SDV6 (306DT, 2009-2018)^[1][2]	2.0 DTI 100-101 hp (X20DTH/Y20DTH, 1,995 cc, 1997-2005)^[4][5] 2.2 DTI 120-125 hp (Y22DTR, 2,172 cc, 2000-2005)^[12][13]
AvoidVersions to avoid	None	None

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

Cars that each one is fitted to

TDV6 / SDV6

See the 14 models with the TDV6 / SDV6

2.0 DTI and 2.2 DTI

Other comparisons

With the TDV6 / SDV6

With the 2.0 DTI and 2.2 DTI

Compare other engines

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Sources

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

Land Rover Discovery TDV6 engine failures making headlinesLandyOnline · Other source · published October 2015 · consulted 5 October 2026
Land Rover & Jaguar SDV6/TDV6 Crankshaft RepairJLR Engines · Technical documentation · consulted 5 October 2026
Land Rover 2.7 TDV6 Timing Belt Replacement GuideBudget Parts (roverparts.eu) · Technical documentation · consulted 5 October 2026
Opel Vectra BWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Opel Vectra C – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German
Ford AJD-V6/PSA DT17 engineWikipedia · Other source · consulted 5 October 2026
Opel Zafira AWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Opel SignumWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Opel OmegaWikipedia (inglés) · Other source · consulted 27 September 2026
Opel OmegaWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
TdV6 Timing BeltLes Richmond Automotive (lrautomotive.com.au) · Technical documentation · consulted 5 October 2026
Fiabilité Opel Zafira - avis et pannes des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Fiabilité Opel Vectra - avis et pannes des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French