BMW N20 vs 1.2 16v: which engine is more reliable?

According to our risk index, the 1.2 16v carries less risk than the BMW N20: 36/100 (moderate risk) versus 63/100 (high risk). The BMW N20 has 2 documented serious faults, the main one being «Timing chain guide and tensioner wear (2011-2015)»; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».

Risk index

BMW N20

High risk · 2 serious faults

Risk index

1.2 16v

Moderate risk · 1 serious fault

Lower risk

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

Reviewed on 27 September 202615 sources How we work

Is the BMW N20 reliable?

The BMW N20 (2011-2017) was the first turbocharged four-cylinder with which BMW replaced its naturally aspirated six-cylinders in models such as the 320i, 328i and X3, and it is generally mechanically sound. Its best-documented weak point is the timing chain guides and tensioner on units built before 2015; oil leaks, the electric water pump and, to a lesser extent, the turbo and the high-pressure fuel pump are also known issues.^[1][2]

See the 5 of the BMW N20 faults

Is the 1.2 16v reliable?

The 1.2 16v (D4F) and its 8-valve predecessor, the D7F, are simple naturally aspirated engines, used for over two decades as the entry-level option in Renault and Dacia cars, with a reputation for reliability: the reliability pages consulted document no catastrophic failures and no oil consumption. The most-cited problems are ignition coils and sensors and, on higher-mileage cars, the head gasket.^[3][4][5][6]

See the 5 of the 1.2 16v faults

Side-by-side comparison

Comparison of BMW N20 and 1.2 16v
Item	BMW N20	1.2 16v
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	1,997 cm³	1,149 cm³
Timing	Chain	Timing belt (dry)
Power	156–245 hp	60–76 hp
Production	2011–2017^[1][7]	2001–2020^{[8][9][10][11]}
Reliability
Risk index (what is it?)	63High risk	36Moderate risk
Documented faults	5	5
Of high or critical severity	2	1
Worst severity	Critical severity	High severity
Main faults	Critical severity: Timing chain guide and tensioner wear (2011-2015) Critical severity: Electric water pump failure (BMW campaign in the US over fire risk) Medium severity: Oil leaks from the rocker cover gasket and the filter housing	High severity: Damaged head gasket and coolant loss Medium severity: Ignition coil failure (misfires, engine warning light) Medium severity: Probe and sensor faults (crankshaft position, throttle body)
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	1.2 16v 75/76 (D4F, 2001-2020)^{[3][4][5][6][12][13][14][15]} 1.2 16v 60 (D4F 708, Twingo I, 2004-2007)^[10]
With cautionVersions to be cautious about	N20B20 156 hp (115 kW, 2013-2016)^[2] N20B20B 184 hp (135 kW, 2011-2017)^[2] N20B20 218 hp (160 kW, 2012-2015)^[2] N20B20A 245 hp (180 kW, 2011-2017)^[2]	None
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

BMW N20

See the 8 models with the BMW N20

1.2 16v

See the 11 models with the 1.2 16v

Other comparisons

With the BMW N20

With the 1.2 16v

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.

BMW N20Wikipedia (inglés) · Other source · consulted 27 September 2026
BMW N20 Engine: Pros, Cons, Reliability, Tuning, and Maintenance GuideBMW BLOG · Motoring press · published 8 June 2025 · consulted 27 September 2026
Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
BMW N20Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia SanderoFiches-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