BMW B48 / B38 vs 1.6 and 2.0 8v EA827: which engine is more reliable?

According to our risk index, the BMW B48 / B38 carries less risk than the 1.6 and 2.0 8v EA827: 24/100 (low risk) versus 32/100 (moderate risk). The BMW B48 / B38 has 1 documented serious fault, the main one being «Timing chain on the early units (2014-2018), redesigned in the B48TU»; the 1.6 and 2.0 8v EA827 has 2 documented serious faults, the main one being «Timing belt and water pump».

Risk index

BMW B48 / B38

Low risk · 1 serious fault

Lower risk

Risk index

1.6 and 2.0 8v EA827

Moderate risk · 2 serious faults

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

Reviewed on 2 November 202618 sources How we work

Is the BMW B48 / B38 reliable?

The BMW B48 (2.0 turbo, from 2014) and its three-cylinder sibling, the B38 (1.5), have a reputation as reliable engines within BMW's modern range: there is no serious, widespread fault on record, unlike the timing chain on the N47 diesel or the EGR fire risk on the B47. Keep an eye on the cooling circuit, the oil seals near the turbo and the VANOS, and the carbon build-up typical of direct injection; BMW revised the timing chain in 2018 (B48TU update).^[1][2][3]

See the 4 of the BMW B48 / B38 faults

Is the 1.6 and 2.0 8v EA827 reliable?

Simple, naturally aspirated petrol engines that, according to the sources, last a long time with regular maintenance. Gebrauchtwagenberater describes the 8-valve 1.6 as old-fashioned but reliable, and the 102 hp 1.6 MPI as even more reliable than the 1.4 16v. Watch the timing belt with the water pump, coolant leaks, oil consumption (especially on the 2.0) and idle and sensor faults.^[4][5][6][7]

See the 6 of the 1.6 and 2.0 8v EA827 faults

Side-by-side comparison

Comparison of BMW B48 / B38 and 1.6 and 2.0 8v EA827
Item	BMW B48 / B38	1.6 and 2.0 8v EA827
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	1,998 cm³	—
Timing	Chain	Timing belt (dry)
Power	136–312 hp	75–120 hp
Production	since 2014^[1][8][9]	1991–2013^{[10][11][12][13][14]}
Reliability
Risk index (what is it?)	24Low risk	32Moderate risk
Documented faults	4	6
Of high or critical severity	1	2
Worst severity	High severity	High severity
Main faults	Medium severity: Deterioration of hoses and seals in the cooling circuit, with coolant loss Medium severity: Oil leaks or seepage from seals and covers, near the turbo and the VANOS High severity: Timing chain on the early units (2014-2018), redesigned in the B48TU	High severity: Timing belt and water pump Medium severity: Coolant leaks: flange and water pump Medium severity: High oil consumption
Most expensive documented repair	No reliable data	up to €700Timing belt and water pumpPublished figure^[15]
Which versions to buy
BuyRecommended versions	B38 1.5 136 hp (MINI Cooper, 118i)^[2] B48 2.0 178-197 hp (120i, 220i, 320i, 520i, X1/X2/X3 20i, MINI Cooper S)^[2] B48 2.0 252-258 hp (330i, 530i, X3/X4 xDrive30i)^[2][16] B48 2.0 up to 302-312 hp, high performance (MINI John Cooper Works, BMW X1 M35i)^[2]	1.6 8v 100-101 hp (AEK, AFT, ADP, AEH, AKL, APF, BAH; 1994-2008)^[4][17] 1.6 8v 102 hp (AVU, BFQ, ALZ, BGU, BSE, BSF, CCSA; 2000-2013)^[5][18]
With cautionVersions to be cautious about	None	1.6 8v 75 hp (ABU, AEA, AEE, 1F, ALM; 1992-2001)^[7] 2.0 8v 115-120 hp (2E, ADY, APK, AQY, AZJ and others; 1991-2010)^[4][7]
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 B48 / B38

See the 21 models with the BMW B48 / B38

1.6 and 2.0 8v EA827

See the 29 models with the 1.6 and 2.0 8v EA827

Other comparisons

With the BMW B48 / B38

With the 1.6 and 2.0 8v EA827

Compare other engines

First engine

Second engine

That is the comparison you are viewing: change one of the two engines.

Sources

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

BMW B48Wikipedia (inglés) · Other source · consulted 27 September 2026
Motor BMW B48: defectos, mantenimiento y guía de compraRecambios y Accesorios BMW (blog) · Technical documentation · consulted 27 September 2026 · in Spanish
BMW Reliability Has Changed, But the Internet Hasn't Caught UpBMWBLOG · Other source · published January 2026 · consulted 27 September 2026
VW Golf IV (1J): Schwachstellen und KaufberatungGebrauchtwagenberater.de · Motoring press · consulted 2 November 2026 · in German
Skoda Octavia II (1Z): Bekannte Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 9 April 2025 · consulted 2 November 2026 · in German
Seat Leon Mk1: Probleme, Schwachstellen, ErfahrungenGebrauchtwagenberater.de · Motoring press · published 7 May 2025 · consulted 2 November 2026 · in German
Fiabilité Skoda Octavia (1997-2004) - pannes moteur, boîte...Fiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
BMW B38Wikipedia (inglés) · Other source · consulted 27 September 2026
BMW B48Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Volkswagen EA827 engineWikipedia (inglés) · Other source · consulted 2 November 2026
SEAT ToledoWikipedia (inglés) · Other source · consulted 2 November 2026
VW New BeetleWikipedia (alemán) · Other source · consulted 2 November 2026 · in German
Škoda Octavia IIWikipedia (alemán) · Other source · consulted 2 November 2026 · in German
SEAT ExeoWikipedia (inglés) · Other source · consulted 2 November 2026
Bomba de agua del coche: la avería de más de 1.500 euros que arrastra a la correaMotor16 · Motoring press · published 21 September 2026 · consulted 2 November 2026 · in Spanish
5 BMWs That Prove the B48 Four-Cylinder Engine Is Better Than You ThinkBMWBLOG · Other source · published April 2026 · consulted 27 September 2026
Fiabilité Audi A3 (1996-2003) - pannes moteur, boîte...Fiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
Fiabilité Volkswagen Golf V - pannes moteur, boîte, électronique...Fiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French