1.0 PureTech vs BMW N62 / N63: which engine is more reliable?

According to our risk index, the BMW N62 / N63 carries less risk than the 1.0 PureTech: 54/100 versus 59/100 (both high risk). The 1.0 PureTech has 2 documented serious faults, the main one being «Excessive oil consumption through the piston rings»; the BMW N62 / N63 has 3 documented serious faults, the main one being «N63 oil consumption from worn valve stem seals».

Risk index

1.0 PureTech

High risk · 2 serious faults

Risk index

BMW N62 / N63

High risk · 3 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 30 October 202619 sources How we work

Is the 1.0 PureTech reliable?

It is a simple naturally aspirated three-cylinder, but with two documented weak points: oil consumption through the piston rings, which Stellantis acknowledges across its entire production (2012-2016), and the oil-bath timing belt it shares with the 1.2. It is only recommended with a full service history, a consumption test and a checked belt.^[1][2][3][4]

See the 3 of the 1.0 PureTech faults

Is the BMW N62 / N63 reliable?

The N62 (naturally aspirated V8, 2001-2010) is considered a solid engine, with the coolant hoses and valve stem seals as points to watch. The N63 (twin-turbo V8, since 2008) has a worse reputation: oil consumption from the seals, the timing chain and coolant loss; the post-July 2013 N63TU is considered more reliable.^{[5][6][7][8][9]}

See the 6 of the BMW N62 / N63 faults

Side-by-side comparison

Comparison of 1.0 PureTech and BMW N62 / N63
Item	1.0 PureTech	BMW N62 / N63
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	999 cm³	—
Timing	Wet belt (belt-in-oil)	Chain
Power	68 hp	272–450 hp
Production	2012–2016^{[2][3][10][11]}	since 2001^{[7][12][13][14]}
Reliability
Risk index (what is it?)	59High risk	54High risk
Documented faults	3	6
Of high or critical severity	2	3
Worst severity	Critical severity	Critical severity
Main faults	High severity: Excessive oil consumption through the piston rings Critical severity: Degradation of the oil-bath timing belt Low severity: Ignition coil and spark plug failure	High severity: N63 oil consumption from worn valve stem seals Critical severity: N63 timing chain stretch and guide breakage Critical severity: Additional turbo coolant pump with a risk of short circuit and fire
Most expensive documented repair	up to €1,200Degradation of the oil-bath timing beltPublished figure^[15][16]	No reliable data
Which versions to buy
BuyRecommended versions	None	N62B48TU 4.8 naturally aspirated 355-367 hp (550i, 650i, 750i, X5 4.8i; 2005-2010)^[6][8]
With cautionVersions to be cautious about	1.0 VTi / PureTech 68 (EB0, 2012-2016)^{[1][2][4][15]}	N62B36 3.6 naturally aspirated 272 hp (735i, 2001-2005)^[5][8] N62B40 4.0 naturally aspirated 306 hp (540i and 740i, 2005-2010)^[5][9] N62B44 4.4 naturally aspirated 320-333 hp (545i, 645Ci, 745i, X5 4.4i; 2001-2006)^[5][9][17] N62B48 4.8 naturally aspirated 360 hp (X5 4.8is, 2004-2006)^[18] N63B44O1 (N63TU) 4.4 twin-turbo 450 hp (2013-2019)^[7]
AvoidVersions to avoid	None	N63B44O0 4.4 twin-turbo 408 hp (2008-2014)^[7][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

1.0 PureTech

BMW N62 / N63

See the 12 models with the BMW N62 / N63

Other comparisons

With the 1.0 PureTech

With the BMW N62 / N63

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Sources

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

Citroën, DS, Opel, Peugeot 1.2 PureTech. Nouvelle prise en charge pour la consommation d'huileL'argus · Motoring press · published 30 March 2024 · consulted 26 September 2026 · in French
Moteur EBWikipédia · Other source · consulted 26 September 2026 · in French
PSA inaugure son « trois-pattes »L'argus · Motoring press · published 28 December 2011 · consulted 26 September 2026 · in French
Moteurs PureTech - Stellantis prend a minima ses responsabilitésUFC-Que Choisir · Consumer association · published 18 January 2025 · consulted 26 September 2026 · in French
BMW 5er E60, E61 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 26 April 2024 · consulted 8 October 2026 · in German
BMW X5 E70 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 5 January 2023 · consulted 8 October 2026 · in German
BMW 5er F10, F11: Typische Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
BMW 6er E63, E64 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 5 January 2023 · consulted 8 October 2026 · in German
BMW 650i: Gebrauchtwagen-TestAUTO BILD · Motoring press · published 4 December 2015 · consulted 8 October 2026 · in German
Peugeot 208 5p Access 1.0 PureTech 68 (2012-2015): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
Prueba de consumo (126): Peugeot 208 1.0-VTi 68 CVkm77 · Motoring press · published 5 August 2013 · consulted 26 September 2026 · in Spanish
BMW N62Wikipedia (inglés) · Other source · consulted 8 October 2026
BMW N63Wikipedia (inglés) · Other source · consulted 8 October 2026
BMW N62Wikipedia (alemán) · Other source · consulted 8 October 2026 · in German
1.2 PureTech: precio y cambio de correa de distribuciónAutopista · Motoring press · published 2 August 2026 · consulted 26 September 2026 · in Spanish
Motor ZMZ EB0 Citroën Peugeot C3 II 208 I 1.0 VTi 68 CV usado y reconstruidoFair Motors · Technical documentation · consulted 26 September 2026 · in Spanish
BMW 745i (E65): Test über 100.000 kmAUTO ZEITUNG · Motoring press · published 12 January 2018 · consulted 8 October 2026 · in German
BMW X5 E53 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 4 January 2023 · consulted 8 October 2026 · in German
Fiabilité Bmw Serie 5 (2010-2016) (252 témoignages)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French