2.0 and 2.2 16v EW10/EW12 vs 1.0 SCe (B4D): which engine is more reliable?

According to our risk index, the 2.0 and 2.2 16v EW10/EW12 carries less risk than the 1.0 SCe (B4D): 14/100 versus 23/100 (both low risk). The 2.0 and 2.2 16v EW10/EW12 has no documented serious faults; the 1.0 SCe (B4D) has no documented serious faults.

Risk index

2.0 and 2.2 16v EW10/EW12

Low risk · 0 serious faults

Lower risk

Risk index

1.0 SCe (B4D)

Low risk · 0 serious faults

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 2.0 and 2.2 16v EW10/EW12 reliable?

The EW10 (2.0) and EW12 (2.2) are naturally aspirated 16-valve petrol engines with a timing belt, which PSA fitted between 1999 and 2010 to the 206, 307, 406, 407, 607, 807, C4, C5 and C8, among others. According to owners there are no frequent internal failures: the most-cited problems are the ignition coils (the only fault also reported by the press), the exhaust and, on the 2.2, oil consumption.^{[1][2][3][4][5][6][7][8]}

See the of the 2.0 and 2.2 16v EW10/EW12 fault

Is the 1.0 SCe (B4D) reliable?

The 1.0 SCe (B4D) is a simple, low-power (70-75 hp) naturally aspirated three-cylinder engine, with no serious or systemic faults documented. Its most cited issues are a clutch that can slip or judder when cold and, more occasionally on the Dacia Sandero II, higher-than-normal oil consumption; there is no pattern of faults in the chain-driven timing.^[9][10][11]

See the 4 of the 1.0 SCe (B4D) faults

Side-by-side comparison

Comparison of 2.0 and 2.2 16v EW10/EW12 and 1.0 SCe (B4D)
Item	2.0 and 2.2 16v EW10/EW12	1.0 SCe (B4D)
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	—	999 cm³
Timing	Timing belt (dry)	Chain
Power	135–177 hp	70–75 hp
Production	1999–2010^{[1][3][12][13]}	2014–2024^[14][15]
Reliability
Risk index (what is it?)	14Low risk	23Low risk
Documented faults	1	4
Of high or critical severity	0	0
Worst severity	Medium severity	Medium severity
Main faults	Medium severity: Faulty ignition coils	Medium severity: Clutch that slips or judders, especially when cold Medium severity: Jerking, rough idle or warning light from sensors and ignition coils Low severity: Higher-than-normal oil consumption (especially on the Dacia Sandero II)
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	2.0 16v 136 hp (EW10J4, RFN/RFR, 1999-2005)^{[1][2][4][5][16][17]} 2.0 16v VVT 140-143 hp (EW10A, RFJ, 2004-2011)^[6][7][18]	None
With cautionVersions to be cautious about	2.0 16v VVT 177 hp (EW10J4S, RFK, 2003-2008)^[4][16][18] 2.0 HPi 140 hp direct injection (EW10D, RLZ, 2001-2004)^[5][7] 2.2 16v 158-163 hp (EW12J4, 3FZ/3FY, 1999-2010)^{[5][6][8][13][19]}	1.0 SCe 70/75 (B4D, 2014-2024)^[9][10][11]
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

2.0 and 2.2 16v EW10/EW12

See the 13 models with the 2.0 and 2.2 16v EW10/EW12

1.0 SCe (B4D)

Other comparisons

With the 2.0 and 2.2 16v EW10/EW12

With the 1.0 SCe (B4D)

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.

PSA EW/DW engineWikipedia (inglés) · Other source · consulted 8 October 2026
Peugeot 307 Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · published 2 November 2022 · consulted 8 October 2026 · in German
Peugeot 407 problems (reseña de Graham Smith)CarsGuide (Australia) · Motoring press · published 17 March 2015 · consulted 8 October 2026
Tous les problèmes sur Peugeot 307 2001-2008 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Peugeot 406 1995-2004 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Peugeot 407 2004-2010 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Citroën C5 2001-2008 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Citroën C8 2002-2015 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Fiabilité et pannes de la Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Renault Twingo 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Peugeot 406Wikipedia (inglés) · Other source · consulted 8 October 2026
Peugeot 307 2.0 16V 140 ch: courroie de distribution (intervalo, tiempo y riesgo)Mecazen · Other source · consulted 8 October 2026 · in French
List of Renault enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Renault TwingoWikipedia (inglés) · Other source · consulted 27 September 2026
Tous les problèmes sur Peugeot 206 1998-2006 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Citroën Xsara Picasso 1999-2010 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Citroën C4 2004-2010 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Tous les problèmes sur Peugeot 607 2000-2011 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French