BMW/N13B16

BMW · Naturally aspirated

N13B16

1 Series·F20·2011–2015

"Bought a 2014 116i with 85k miles — no major problems but had to change the pre-cat O2 sensor already."

RISKY

58/ 100

"Budget BMW with expensive small-engine habits"

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Max HP

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Torque Nm

10,000

Oil interval km

Recalls

Known issues

Known Issues

Timing Chain & VANOS System Wear€800-2,000 · 80,000-150,000 kmHIGH

The N13B16 shares its architecture with the Prince engine family. Forum reports mention VANOS rattle after chain replacement and exhaust camshaft timing faults. Resetting VANOS adaptations after chain work is commonly required. VANOS wheel wear is a documented follow-on issue.

Rattling on cold start

Camshaft timing fault codes

Rough idle

Check engine light for boost/cam timing

DIY: Hard

EGR Cooler Leaks & Recall€400-1,200 · 60,000-150,000 kmHIGH

A DVSA recall covered almost 35,000 BMW and MINI vehicles for potential EGR cooler leaks. Forum posts confirm some vehicles experienced renewed leaking even after recall replacement parts were fitted. Parts availability was also reported as an issue during recall servicing.

Coolant loss

White smoke from exhaust

Coolant smell in cabin

Overheating warning

DIY: Hard

Coolant System Leaks€150-600 · 50,000-130,000 kmMODERATE

Multiple forum threads report coolant leaks from the reservoir and associated hoses. The all-aluminium Prince-derived engine is sensitive to coolant loss, and leaks were reported even on relatively low-mileage examples. Sources include the main reservoir, hoses, and EGR cooler interface.

Visible coolant puddle under car

Low coolant warning

Coolant on engine bay surfaces

Rising temperature gauge

DIY: Moderate

Oxygen Sensor (Pre-Cat Lambda) Failure€100-300 · 80,000-130,000 kmMODERATE

At least one forum owner reported needing to replace the pre-cat O2 sensor on a 2014 116i N13 engine at around 85,000 miles. This is a known wear item on this engine generation.

Check engine light

Poor fuel economy

Rough running

Failed emissions test

DIY: Moderate

MAF Sensor Issues€80-250 · 70,000-140,000 kmLOW

Forum content references MAF sensor diagnostics on this engine family. The mass airflow sensor is a known wear and contamination-prone item on small-displacement BMW petrol engines.

Hesitation on acceleration

Poor idle quality

Check engine light

Increased fuel consumption

DIY: Easy

Buying Checklist

Run a full OBD scan and check specifically for VANOS, cam timing, and lambda fault codes before purchase

Cold-start the engine and listen carefully for timing chain rattle in the first 10–30 seconds

Confirm EGR cooler recall has been completed at a BMW dealer using the vehicle VIN

Pressure-test the cooling system or check for coolant residue around the reservoir, hoses, and EGR cooler area

Check service history for oil change intervals — reject any car without records showing changes at or below 10,000 km

Inspect the pre-cat oxygen sensor condition and check for any emissions-related fault codes in live OBD data

Service Reality

Community oil interval10,000 km

Oil specificationBMW Longlife-01 5W-30 or 0W-30 (LL-01 approved)

Est. ownership cost (2yr)€600–1,800 per year depending on mileage, service history, and whether timing chain work is required

Real mix fuel consumptionNo data

Also Found In

BMW 116i F20BMW 118i F20BMW 316i F30MINI Cooper (Prince engine family variant)

Buying Advice

The N13B16 is a capable but temperamental small-displacement BMW engine that rewards careful maintenance and punishes neglect. Timing chain and VANOS wear are the most financially significant risks, so a cold-start rattle is an immediate walk-away signal. Always verify the EGR recall has been completed and pressure-test the cooling system, as coolant leaks are common and can cause serious damage if ignored. Only buy from a seller with documented service history showing regular oil changes well below BMW's excessively long manufacturer intervals.