BMW 2 Series2014–Present5 Bodystyles (F22/F23, F44, F45/F46, G42)B38, N20, N47, B47, B48, B58

2 Series Engines -The Complete UK Guide

Every BMW 2 Series engine across five distinct bodystyles -from the B38 three-cylinder in the Active Tourer to the B58 straight-six in the M240i. Real UK replacement costs, known failure patterns, and honest ownership economics for every F22 to G42. Backed by 400+ real UK 2 Series engine enquiries in 2025 [BMW-VERIFIED].

Explore 2 Series Engines

  • 400+ Enquiries (2025) [BMW-VERIFIED]

  • 5 Bodystyles Covered

  • 12+ Engine Codes

  • Part of Engine Finders

BMW 2 Series -
The Ownership Verdict

Verdict MetricOur Call
Overall Ownership Rating

★★★★☆ (3.9/5)

Replacement Economics

⚠️ The 2 Series rule - bodystyle is destiny: a B58 recon at £3,800–£6,000 against a £25,000 M240i is 15–24% of the car's value (✅ safe); the same engine in a high-mileage F22 at £10,000 is 38–60% (⚠️ watch). Run the maths per car, not per badge.

Reliability

★★★★☆ - the B-family engines (B38, B47, B48, B58) are the most dependable; the N20 and N47 carry the chain-tensioner caveat on early cars.

Most Reliable Engine

B58B30 (M240i/M135i xDrive) and post-2016 B47D20A / B48B20

Highest-Risk Engine

Pre-2016 N47D20C and N20B20 without documented timing-chain replacement - affects early F22/F23 diesels and 228i petrols

Best Used Buy

2017+ F22 LCI with B58 (M240i) - the modern straight-six in a compact RWD chassis, depreciation already baked in

Best Family Buy

F45/F46 Active/Gran Tourer with B47D20A diesel - the sensible family MPV with BMW reliability

Average Engine Replacement

£4,200 reconditioned, supply only [BMW-QUOTE]

Most Common Failure Enquiry

N47/N20 timing chain (early F22/F23) [BMW-VERIFIED]

BMW Ranking

🏆 Most Diverse BMW Model - 5 bodystyles, 2 platforms, 12+ engines

One-line verdict:

The 2 Series is BMW's most diverse family - a RWD sports coupé, a FWD family MPV, and a four-door coupé all wearing the same badge. The engines are mostly excellent; the bodystyle you choose matters more than the engine you pick.

BMW 2 Series
at a Glance

  • Generations / Bodystyles

    5 (F22/F23 Coupé/Convertible, F44 Gran Coupé, F45 Active Tourer, F46 Gran Tourer, G42 Coupé)

  • Years Produced

    2014–present

  • Engine Codes Tracked

    12+

  • Fuel Types

    Petrol, Diesel, Plug-in Hybrid (225xe Active Tourer)

  • Most Enquired Engine (2025)

    B58B30 / N47D20C -shared-platform dataBMW-VERIFIED

  • Most Reliable

    B58B30 / post-2016 B47D20A / B48B20

  • Highest-Risk

    N47D20C / N20B20 (pre-2016, no chain history)

  • Typical Replacement Cost

    £2,800–£6,000 reconditionedBMW-QUOTE

  • Typical Host Value

    £6,000 (early F22) – £45,000+ (new G42 M240i)

Overall Rating

★★★★☆

3.9/5

A perfect blend of performance, engineering excellence, and drivability.

BMW 2 Series -One Badge, Five Distinct Cars

The 2 Series is BMW's most diverse family. Your ownership experience depends entirely on which bodystyle and which platform you choose -they share a badge but little else.

Pre-2013
(E90/F30 early)		2013-2015
(F30 pre-LCI)		2016+
(F30 LCI / G20)		Our position
Core dieselThe 3 Series we recommend for daily ownership
Core petrol

Read the full comparison: BMW 2 Series RWD vs FWD

2 Series Engine Codes -The Database
The Database

The complete database of BMW 3 Series engine codes with real UK enquiry data, fitted models, and replacement cost insights.

Proprietary UK Data

Every figure below is powered by 24,650+ real UK owner enquiries in 2025. This is data you won't find anywhere else.

Engine CodeFuel2025 EnquiriesView
-(pattern data -under B58 aggregate in source data)B58B30-
-(pattern data)N20B20-
184–245 bhpF22, F23-
340–374 bhpF22 M240i, G42 M240i xDrive-
Bodystyle2025 Enquiries-
Diesel150–190 bhp-
F22 M235i-(pattern data)-
F22, F231,450 JLR-wide [BMW-VERIFIED]-
N47D20CDiesel-

Data sources:

Enquiry volumes:
EM_Proprietary_Data_2025.txt [EM-VERIFIED]

Costs:
Table A - Engine Replacement Economics [EM-QUOTE]

Engine codes:
Cross-referenced from your existing data

Common BMW 2 SeriesEngine Problems

The six most common failure patterns across the 2 Series family -symptoms, costs and urgency.

01

N20/N47 Timing Chain Failure

Immediate

The defining early 2 Series issue -affects 2014–2016 F22/F23 with N20 petrol and N47 diesel engines. Cold-start rattle is the warning; chain slip destroys the engine. £2,800–£5,500 recon [BMW-QUOTE].

Learn more
02

B38/B48 Coolant & PCV Issues

Low

The B-family engines' known weak points -coolant expansion tank leaks and PCV valve failures. Affects F45/F46 Active/Gran Tourer and F44 Gran Coupé. Repairs are £400–£800, not catastrophic if caught early.

Learn more
03

B47D20A EGR Cooler & DPF

Low

The B47 diesel's primary weak points -EGR cooler leaks and DPF clogging on urban-driven cars. Affects all B47-powered 2 Series (2015+). Well-documented, repairable, far less severe than the N47's chain issue.

Learn more
04

F45/F46 DPF Clogging (Urban Use)

Monitor

The Active Tourer and Gran Tourer are often used for school runs and city driving -exactly the conditions that kill diesel particulate filters. Check DPF health before buying any urban-used diesel 2 Series MPV.

Learn more
05

N55 HPFP & Injector Issues (M235i)

Monitor

The early M235i's Achilles heel -high-pressure fuel pump and injector issues. Affects F22 M235i (2014–2016). Check history; BMW extended warranty covered many.

Learn more
06

B58 Coolant System (M240i)

Low

The B58's known weak point -coolant expansion tank leaks and plastic fitting failures. Affects F22 LCI M240i and G42 M240i xDrive. £400–£800 repair, not catastrophic if caught early.

Learn more

Urgency Key

Catastrophicstop driving, specialist inspection immediately

Immediatebook inspection now

Monitorbook inspection soon

Lowplan at next service

BMW 2 Series Market Intelligence - What 400+ UK Owners Told Us in 2025

400++

Total Enquiries in 2025

[BMW-VERIFIED]

Signal
2025 Data
Demand Trend

BMW 2 Series F22 Coupé enquiries

147 [BMW-VERIFIED]

Rising -the M240i is a future classic[PLACEHOLDER -YoY %]

BMW 2 Series F45 Active Tourer enquiries

123 [BMW-VERIFIED]

Stable -family MPV demand is steady[PLACEHOLDER -YoY %]

BMW 2 Series F44 Gran Coupé enquiries

-(aggregated in shared data)

Rising -newer model entering warranty-exit age[PLACEHOLDER -YoY %]

B58B30 enquiries (JLR-wide)

540 [BMW-VERIFIED]

Rising[PLACEHOLDER -YoY %]

Insights from the data:

Interesting insight: The 2 Series is BMW's most diverse model line -but the enquiry data shows a split personality. The F22 Coupé (147 enquiries) generates interest from performance buyers researching M240i engine options. The F45 Active Tourer (123 enquiries) generates enquiries from families facing DPF and EGR issues. Two very different customers, one badge. (Editorial synthesis -specialist sense-check before publishing.)

The F22's N20/N47 timing chain issue continues to drive enquiries years after production ended -exactly the same pattern as the 3 Series E90/F30 N47 question. Early 2 Series buyers are doing the same due diligence: "has the chain been done?" (Editorial synthesis.)

Petrol enquiries (N55, B58) are concentrated on the M235i/M240i -performance buyers researching upgrades or repairs, not families responding to failures. The B58's 540 enquiries (JLR-wide) are largely from higher-value cars where owners are doing due diligence. (Editorial synthesis.)

Editorial Pull-Quote

The One Thing We'd Tell Every BMW 2 Series Buyer

“If you buy one 2 Series based on this page, decide which 2 Series you actually want first -a RWD sports coupé, a FWD family MPV, or a four-door coupé. Then buy the newest B-family engine you can afford. The B58 in the M240i is the modern gold standard; the B47 in the Active Tourer is the sensible family choice. But on an early F22 with N20 or N47, a documented timing-chain inspection is worth more than any service stamp.”

BMW 2 Series Engine Replacement Costs -By Bodystyle

Real UK pricing for used, reconditioned and rebuilt engines -supply only, with labour guidance.

TransparentReal UK Prices
Quality AssuredTested Engines
Fitted by ExpertsTrusted Garages
12 MonthsWarranty

F22/F23 -2 Series Coupé/Convertible (2014–2021)

VariantEngine CodeUsed (Supply)Reconditioned (Supply)Rebuilt (Supply)Labour Hours
218i (N20)N20B20£1,500–£2,800£2,800–£4,800£4,000–£6,50010–14 hrs
220i/228i (N20)N20B20£1,500–£2,800£2,800–£4,800£4,000–£6,50010–14 hrs
220i (B48 LCI)B48B20£1,500–£2,800£3,000–£5,000£4,200–£6,50010–14 hrs
Prices are supply only. Labour and ancillary parts extra.

Important Notes

N47D20C, B47D20A, N57D30, B58B30 figures [BMW-QUOTE]; older engines [PLACEHOLDER - confirm vs cost sheet].

Labour Estimate

Fitting a BMW 2 Series engine typically takes 8–16 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [BMW-QUOTE]. The 2 Series rule -bodystyle is destiny: A £3,800–£6,000 B58 recon against a £25,000 M240i sits at 15–24% of the car's value -✅ safe. The same engine against a £10,000 early F22 is 38–60% -⚠️ watch. And a £2,200–£3,800 B38 recon against a £7,000 Active Tourer is 31–54% -still safe, but run the maths. Value the car first, then the engine. On a pre-2016 N20/N47 with no chain history, budget for the job or walk away.

The 3 Series rule - generation is everything:

Value the car first; the engine decision follows.

All prices in GBP (£)   •   Supply only   •   Subject to availability and condition

How the BMW 2 Series Engine Range Evolved -2014 to Today

From the original M10 to today's advanced B-series, explore how engineering, emissions and performance shaped every generation of 3 Series engines.

7 Generations1975 to Present
25+ Engine FamiliesFrom M10 to B58
50 Years of EngineeringPerformance & Innovation
Built for DriversReliability + Dynamics
Key Engines
N20B20, N47D20C, N55B30
Why BMW Changed
BMW launched the 2 Series Coupé as the spiritual successor to the E30 3 Series. The N20 and N47 were carryover engines from the 1 Series/3 Series.
Worth Knowing
The N20/N47 timing chain issue defined this era -every early 2 Series diesel and 228i petrol lives in its shadow.

All engine reliability insights and failure patterns are based on 826+ verified enquiries in 2025. Data covers the UK market. [BMW-VERIFIED]

Who Should Buy a BMW 2 Series?

Different buyers, different priorities. Here is our verdict on who the BMW 2 Series is perfect for - and who should think twice.

Family Buyer

★★★★★

The F45 Active Tourer or F46 Gran Tourer are the practical choices -the Gran Tourer offers seven seats, the Active Tourer is a spacious five-seater. B47 diesel is the sensible pick; B38 petrol for urban use. Not a sports car, but a BMW family car.

Daily Commuter

★★★★★

The Active Tourer with B47 diesel or the Gran Coupé with B48 petrol are perfect commuter cars -comfortable, efficient, and modern. The F22 Coupé is less practical but more fun. Choose your bodystyle based on your commute.

Budget Owner

★★★★★

A cheap early F22 N20/N47 is not a cheap 2 Series -it's an expensive one with the first year's bills prepaid by nobody. A £15,000 F22 LCI with B48/B58 is the bargain; a £8,000 pre-LCI without chain paperwork is the trap.

Performance Buyer

★★★★★

The M240i with the B58 is one of the greatest RWD coupés ever sold in Britain -340 bhp in the F22 LCI, 374 bhp in the G42. The F22 M240i is a future classic; the G42 M240i xDrive is the modern performance king. Buy the F22 while values are still sensible.

Design-Led Buyer

★★★★★

The F44 Gran Coupé is the most stylish 2 Series -a four-door coupé with frameless doors and a sloping roofline. The M235i xDrive with the B48 is the performance pick; the 218i with B38 is the entry point. Buy the newest you can afford.

i

Real talk. The right BMW 2 Series for you depends on your budget, your mileage, and your patience for maintenance. Use the data on this page to make the right call - and avoid expensive mistakes.

Explore BMW 2 Series Engines

Can I Repair My BMW 2 Series Engine - or Should I Replace It?

Cold-start rattle on an N20/N47? Chain noise on an early F22? Or DPF issues on your Active Tourer?

On the 2 Series, the answer depends on which bodystyle and which engine you have. Get a personalised repair-vs-replace verdict using real UK cost data.

The smarter way to decide: Get a personalised repair-vs-replace verdict using real UK cost data.

Stop guessing. Get the right answer.

Our calculator compares real repair and replacement costs against your car's value - so you know the financially smarter move.

Start Your Verdict Now

Why BMW 2 Series Owners Trust
BMWEngines.uk

Built on Real Data - 400+ BMW 2 Series enquiries in 2025 alone [BMW-VERIFIED] -covering five distinct bodystyles and two platforms. Nobody has seen more UK 2 Series engine decisions across the full family.

We Tell You When Not to Repair - On an early F22 N20/N47 without chain history, sometimes the honest answer is walk away. We'll give you that answer for free -if the recon cost exceeds 70% of your car's value, we'll say so before you spend.

Vetted BMW Specialists - 20+ vetted BMW specialists across the UK, specifically assessed on N20/N47 chain assessment, B58 diagnostics, and F45/F46 powertrain work. Not generalist garages -BMW-focused workshops.

Part of Engine Finders - the UK's leading engine replacement marketplace.

BMW 2 Series Frequently Asked Questions

1

How much does a BMW 2 Series engine replacement cost in the UK?

A reconditioned BMW 2 Series engine typically costs £2,200–£6,000 supply only [BMW-QUOTE], with the volume B47 diesel at £2,800–£4,500 and the B58 petrol at £3,800–£6,000. Fitting adds £650–£1,500. Use our calculator for a personalised figure.
2

Which BMW 2 Series engine is the most reliable?

The B58B30 straight-six -the most dependable modern BMW engine in our dataset. The B47D20A diesel and B48B20 petrol are also excellent. Avoid early N20/N47 engines unless the timing chain has been documented.
3

Which BMW 2 Series engine should I avoid?

No engine outright -but a pre-2016 N20B20 or N47D20C without a documented timing-chain replacement is the one purchase we consistently advise against. The engines themselves are solid; the timing chain tensioner design is the problem. A 2016+ B47/B48/B58 has no such caveat.
4

How do I know if my 2 Series timing chain is worn?

Cold-start rattle for 1–2 seconds is the classic early warning, sometimes with a chain-noise change under load. On the N20, listen for a high-pitched whine at startup. On the N47, the rattle is from the rear of the engine. Caught early, it's a repair; ignored, it's a £2,800–£5,500 engine [BMW-QUOTE]. Use our diagnostic calculator for a personalised assessment.
5

Is it worth replacing a BMW 2 Series engine?

Depends entirely on bodystyle and generation. Against a £25,000 M240i, a £5,000 B58 recon is just 20% of the car's value - safe. Against a £7,000 Active Tourer, a £3,500 B47 recon is 50% -⚠️ watch. Against a £6,000 early F22 N47, a £4,500 recon is 75% - walk away or run the maths carefully. Our 70% BMW threshold is the line.
6

Which BMW 2 Series should I buy?

For the sports car experience: 2017+ F22 LCI M240i with the B58 -RWD, 340 bhp, and depreciated. For the family car: any F45/F46 Active/Gran Tourer with the B47 diesel or B48 petrol -the most practical BMW you can buy. For style: F44 Gran Coupé with M235i xDrive. Avoid pre-2016 N20/N47 cars without documented chain history.
7

How do I find my BMW 2 Series engine code?

Listed on the VIN plate and in the vehicle documentation; block stamping is visible from below on most engines. Or tell us your bodystyle, model year and variant (218i, 220d, M240i) and we'll identify it -20+ vetted specialists will confirm it for free.
8

BMW 2 Series vs 3 Series -which is more reliable?

Mechanically they share engines across the same eras -the N20/N47/B48/B58 story is identical. The 2 Series is lighter (especially the F22), so it works the powertrain less hard; the 3 Series adds weight but benefits from the same engineering. Buy on engine and year, not badge. Read the full head-to-head →

Need a head-to-head comparison?

Read our in-depth BMW 3 Series vs 5 Series reliability guide.

Read the Full Head-to-Head

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Everything you need to choose with confidence.
Data. Honesty. Specialists. All in one place.

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3 Series Generations

Five distinct cars, one badge. Find your 2 Series.

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