Is the BMW X4 reliable?

The BMW X4 scores 78/100 on Forecourt's MOT-based reliability measure, ahead of 77% of the cars we track. That is computed from 126,024 real DVSA MOT test results.

How much does a used BMW X4 cost?

A 2023 BMW X4 with around 28,062 miles is worth roughly £26,550 today (typical range £23,150–£29,900). Dealer forecourt prices sit higher and part-exchange offers lower; newer or lower-mileage examples cost more.

How quickly does the BMW X4 depreciate?

A new BMW X4 typically loses about 36% of its value over the first three years, then depreciates more slowly. Buying at three to five years old avoids the steepest part of the curve.

What insurance group is the BMW X4?

The BMW X4 sits in insurance group 30 of 50 — the middle of the scale. Exact premiums depend on the trim (some versions sit a few groups higher or lower), your age, postcode and no-claims history.

What goes wrong on a used BMW X4?

The most common age-related issues we track for the BMW X4 are: tyres & wheels (typically around over 100k miles, £80-£500 to put right); suspension (typically around over 100k miles, £150-£450 to put right); brakes (typically around over 100k miles, £150-£500 to put right). A full service history and a recent MOT with no advisories are the best protection.

What does the BMW X4 cost to run?

Expect around 47 mpg combined on the X4 xDrive20d, £200 a year in road tax, about £290 for a standard annual service. The full cost-of-ownership table above breaks this down per year and per mile for the exact year and mileage you choose.

Is the BMW X4 ULEZ compliant?

Most petrol BMW X4s from 2006 and diesels from September 2015 meet the Euro standards for London ULEZ and other UK clean-air zones, so they are generally exempt from the daily charge. Pure-electric versions are always exempt.

How many BMW X4s are on UK roads?

About 20,541 BMW X4s are currently taxed and on the road in the UK, from DfT vehicle-licensing data.

Ranked #218 car in the UK · Coupe SUV · 563 units sold last year

BMW X4

The BMW X4 (G02, 2018 on) is the coupe-roofed version of the X3 - the same strong underpinnings and sharp handling wrapped in a racier, fastback body. Petrol, diesel and mild-hybrid power, with rear- or xDrive drive and the quick M40i at the top. It's the driver's pick among mid-size coupe-SUVs, if you can accept the sloping roof's hit to rear headroom and boot height versus the regular X3.

How these figures are sourced — the valuation is anchored to a researched used-market price for this model (AutoTrader median, 2023 at 30k miles). Reliability, mileage and variant data are real DVSA MOT records. Dimensions, tyre sizes and costs, servicing figures and the insurance group are segment-level estimates rather than sourced per car, and are being replaced model by model.

Body: Coupe SUV
Years: 2018–2026
Fuel: Petrol / Diesel / Mild Hybrid
Economy: 47 mpg
Insurance: Group 30

The short version

The BMW X4 is dearer to run than most. Its MOT-based reliability is good — an MOT score of 78/100, ahead of 77% of the cars we track.

Pick your version

Fuel

Diesel · 1995cc

Power

190 ps

Drivetrain

AWD

Cam drive

Chain

Quoted MPG

47 mpg

The volume X4 (G02). 2.0 B47 diesel with 48V mHEV, xDrive AWD, 190 PS. ~47 mpg. BMW chain-driven across the lineup - a meaningful upgrade over wet-belt rivals.

Tell us about the one you're looking at

Year of registration2023

20182026

Mileage on the clock28,062 mi

0Expected: 28,062180k

Conditiongood

PoorFairGoodExcellent

Tidy and well looked-after for its age — the typical car.

Region

Remembered as you browse other cars.

Know the registration?

Optional — fills in the exact year and ULEZ status for your specific car. The registration isn’t stored.

Estimated market value

£26,550

Range £21,750 – £31,750

medium confidence

When new (2023)circa £49,000Age-based value£31,360Mileage adjustment+£0Condition & region-£16Market calibration-£3,194Forecourt price£28,150Private sale£24,900Part-exchange£21,900

Holdthis 3-year-old

Fair value — depreciation is moderating.

At 28,062 miles it’s about the ~29,448 typical for a 3-year-old.

Seen one for sale?

A data-led guide from the depreciation curve, UK parc trend and reliability — not financial advice.

The depreciation curve

How a 2023-registration BMW X4 loses value over time.

Marker = your selection
Dashed = mileage either side

What it costs to own

Over

Based on the 2023 car with 28,062 miles you entered above — worth about £26,550 today — here is the cost of owning it for the next 5 years, at roughly 9,354 miles a year.

5-year total

£23,890

Per year

£4,778

All-in per mile

£0.51

Fuel per mile

21.4p

If a company carAround £660/mo Benefit-in-Kind tax at the 40% rate (£330/mo at 20%) — 37% band

Depreciation£5,971

Fuel / energy£9,999

Servicing£2,570

Road tax£1,000

Insurance£4,350

If you're a company-car driver

At 37% BIK, a 40% taxpayer would pay about £660/month in company-car tax (£330/month at 20%) — on top of the running costs above. Full BIK table below for context.

Best age to buy — around 4 years

A 4-year-old example loses roughly £3,950 a year — 52% less than the £8,300 a one-year-old sheds. The steepest drop is behind it.

Uses current UK pump and home-charging prices (DESNZ weekly), typical-driver insurance and manufacturer service intervals. "Fuel per mile" is just the energy input — so an EV at ~9p and a diesel at ~22p make running-cost comparison direct. A guide; your own costs will vary.

How it compares

Where this car ranks against the 285 vehicles in our index — higher is better.

Reliabilitybetter than 56%

Fuel economybetter than 15%

Percentile rank across our full index. A measure is shown only where the data spreads meaningfully across the index.

Petrol, diesel, hybrid or EV?

How the available versions compare on price, running cost, and the headaches each tends to develop.

xDrive20i / xDrive20d (volume)

Coupe-SUV X3 essentially. Less practical (sloping roofline cuts headroom, ~30 litres less boot) but better-looking. M Sport standard from launch. X4 to be discontinued — iX3 EV is the future. Last-of-line ICE X4 will firm up in used market.

New price: circa £55,000
Annual fuel / energy: £2,000
3-yr depreciation: 51%

Watch for

·B47/B48 timing chain on pre-2020 cars (campaign-fixed)
·iDrive 7 freezes on pre-LCI cars (improved 2022 with iDrive 8)
·Run-flat tyre harshness on UK potholed roads

xDrive30d / M40i (straight-six)

xDrive30d is the cruiser; M40i is the performance pick. Both use BMW's excellent straight-six engines. Coupe-SUV format more divisive than the X3 — buyers either love it or skip it entirely. X4 M (separate consideration) is the 510 PS top variant.

New price: circa £65,000
Annual fuel / energy: £2,200
3-yr depreciation: 49%

Watch for

·B57/B58 cooling pumps at 60k+ miles
·M40i front tyres wear quick if driven enthusiastically
·Some examples show iDrive 7 freezes pre-2022

Fuel/energy costs based on this week’s UK averages (w/c 03/08/2026) · Petrol 159.9p/L, Diesel 179.2p/L, Electricity 27.0p/kWh · DESNZ

Estimated insurance

Group 30 of 50 (upper-mid — pricier to insure) · Comprehensive · 3 years NCB

Indicative annual comprehensive premiums for this car, by driver age band and risk profile. Pick the combination closest to your circumstances.

No-claims bonus3 years

0 yearsBaseline: 3 years15+

Risk profile:

Estimated annual premium · typical, age 33-39

£870/ year

Roughly £73 per month

Typical

Average UK driver — 3 years NCB, average postcode, no recent claims.

Age band	Lower risk	Typical	Higher risk
Age 17-25	£1,984	£2,480	£3,223
Age 26-32	£1,035	£1,218	£1,486
Age 33-39Selected	£766	£870	£1,027
Age 40-49	£650	£722	£838
Age 50+	£579	£644	£760

How we estimate this

Indicative annual comprehensive premium estimates. The 'Typical' figure represents an average UK driver in each age band; Lower and Higher risk show the realistic spread driven by factors UK insurers legitimately price on (postcode, occupation, claims history, NCB, voluntary excess, modifications). Based on 10,000 miles/yr, £250 voluntary excess, and the no-claims bonus selected above. Always get individual quotes before buying.

Expected annual costs

Adjust the annual mileage to match how you'll actually use the car. Insurance is what you selected above (age 33-39, typical risk, 3 yrs NCB).

Annual mileage9,354 mi/yr

2,000UK avg for this model: 9,35430,000

Routine service

£290

Annual main-dealer service

Major service

£280

Every 2 years, annualised

Road tax

£200

Standard rate, post year-one

Fuel

£1,447

47 mpg, £1.60/L

Insurance

£870

Age 33-39, group 30

Clean-air zones

✓ ULEZ compliant

Mild Hybrid variants are compliant with London ULEZ and all UK clean-air zones.
All petrol variants meet Euro 4 standards and are ULEZ compliant.
All diesel variants meet Euro 6 standards and are ULEZ compliant.

Based on London ULEZ standards — Birmingham, Bath, Bristol, Sheffield, Glasgow and other UK clean-air zones generally follow the same rules.

Total expected£3,087 / year

Excludes depreciation and unscheduled repairs (see next section).

Unexpected costs

What out-of-warranty repairs typically run, by mileage band. Your selected mileage is highlighted.

0-30k miles

£120

per year · low risk

30-60k miles

£360

per year · low risk

60-100k miles

£780

per year · medium risk

100k+ miles

£1,350

per year · high risk

Tyres

215/65 R17 · 235/55 R18 · 235/50 R19

What a full set of four will cost you (including fit and balance), and which brand each tier of buyer should pick. A typical set lasts about 24,000 miles.

Budget

£400

set of 4, fitted · £85 per tyre

Mid-range

£580

set of 4, fitted · £130 per tyre

Premium

£840

set of 4, fitted · £195 per tyre

What to fit

Optional extras worth paying for

Factory options ranked by how much of their original cost they recover at resale. Anything above 70% return tends to make money back; below 40% is paying for your own enjoyment.

Option	New cost	Added used value	Return
Tow bar (factory-fit) Niche, but the buyers who want one will pay for it.	£650	£450	69%
Parking sensors & reversing camera Near-expected now — its absence costs more than its presence returns.	£500	£300	60%
Heated seats / cold-weather pack	£450	£200	44%
Adaptive / matrix LED headlights	£900	£400	44%
Metallic or premium paint Almost universal — an unusual colour is the bigger resale risk.	£600	£200	33%
Panoramic / opening roof	£1,100	£350	32%
Advanced driver-assistance pack	£1,500	£450	30%
Larger alloy wheels	£700	£200	29%
Premium sound system	£800	£200	25%

Parts most likely to fail

Drawn from owner reports and warranty data. Filtered for relevance to 28,062 miles.

Watch now

Failure typically happens around your current mileage.

Upcoming

A known weak point — but you haven't reached its usual mileage yet.

Already due

Past its usual failure mileage. Either already fixed, or about to.

Tyres & wheelsUpcoming

Typical at over 100k milesCost £80-£500medium severityParts high

Recorded in 6.5% of MOT tests over 100k miles — from 121,275 DVSA MOT tests analysed.

SuspensionUpcoming

Typical at over 100k milesCost £150-£450low severityParts high

Recorded in 5.8% of MOT tests over 100k miles — from 121,275 DVSA MOT tests analysed.

BrakesUpcoming

Typical at over 100k milesCost £150-£500medium severityParts high

Recorded in 2.5% of MOT tests over 100k miles — from 121,275 DVSA MOT tests analysed.

Driver's viewUpcoming

Typical at 60k-100k milesCost £60-£300low severityParts high

Recorded in 2.1% of MOT tests 60k-100k miles — from 121,275 DVSA MOT tests analysed.

Lighting & signallingUpcoming

Typical at over 100k milesCost £15-£120low severityParts high

Recorded in 1.6% of MOT tests over 100k miles — from 121,275 DVSA MOT tests analysed.

Identification & otherWatch now

Typical at under 30k milesCost £20-£150low severityParts high

Recorded in 0.4% of MOT tests under 30k miles — from 121,275 DVSA MOT tests analysed.

"Parts low/medium/high" indicates how easy the replacement part is to source — discontinued or specialist parts mean longer workshop time and bigger bills.

Safety rating

Euro NCAP's independent crash-test rating for the BMW X4, from its 2017 assessment.

5/5

TEST YEAR2017

Rating lapsed after 2023 · protocol superseded

The passenger compartment of the X3 remained stable in the frontal offset test.

Independent crash-test data from Euro NCAP. Star ratings reflect the test protocol of the year shown — newer protocols are stricter, so a 5-star from 2024 represents a higher bar than a 5-star from 2014. Euro NCAP ratings run for six years from publication; a lapsed rating means the protocol has moved on, not that the car performs any worse than it did on test.

MOT outlook

How this model fares at its MOT as it ages — from 126,024 real DVSA test records.

MOT pass rate by age

89.7% at 3yr → 79.6% at 12yr

A 3-year-old X4 passes its MOT 89.7% of the time; by 12 years that has slipped to 79.6%. The y-axis is zoomed to this model’s range so the trend is readable.

Longevity

93%of 8-year-old examples are still taxed and on the road — a useful read on how well the model lasts.

From 2,207 vehicles registered in 2018.

Survival by registration year

93% of 2018 cars still on the road

Each point is one registration cohort. Older cars on the left, newer on the right. A flatter line means the model holds up over time; a steep drop means cohorts disappear from UK roads faster.

What’s on the road

The fuel-type split of every X4 with MOT history in the DVSA record. From 23,102 vehicles tested at least once - not the number on the road today, which is lower.

Diesel 65.4%
Electric 19.6%
Petrol 9.6%
Hybrid 4.9%

What fails at the first MOT

The defect categories a X4 registered 2020–2023 fails on at its first MOT, from 6,094 first tests. Every car here is the same age and the same generation, so these are the faults that show up first - not the wear a high-mileage older example collects.

Tyres & wheels5.3%
Driver's view0.9%
Identification & other0.6%
Brakes0.4%
Lighting & signalling0.3%
Suspension0.2%

Share of first MOT tests recording at least one defect in that category. DVSA test-item categories, not parts: “Driver’s view” covers mirrors, wipers and glass.

Typical mileage by age

The average odometer reading for a X4 at MOT, by age — measured from the same DVSA records, not assumed. A useful yardstick for whether a given car has done more or fewer miles than its age suggests.

3 yr29,448
4 yr38,118
5 yr46,431
6 yr55,007
7 yr63,856
8 yr72,771
9 yr80,958
10 yr89,167
11 yr95,603
12 yr101,470

Mean recorded mileage at MOT by vehicle age, from DVSA test records. Ages below three are not shown: the first MOT is due at three years, so the few cars tested earlier are a self-selected minority rather than a representative sample. Ages with at least 10 tests shown.

Reliability

78/ 100

Good

First-MOT pass rate and defect rate for cars registered 2020 onward (6,094 first tests), with cohort survival — high confidence.

MOT outlook · age 5 years

88%first-time pass rate

77th percentile — Better than most comparable cars

Based on 18,961 MOT tests · ranked against 248 catalogue models with comparable data

Where this car sits in the catalogue

Pass-rate distribution across 248 catalogue models

Things owners say

01The 20d diesel is the economical high-miler; the M40i straight-six is the keen-driver's choice.
02Shares its excellent chassis with the X3 - one of the better-driving cars in the coupe-SUV class.
03The sloping roofline trims rear headroom and load height - the X3 is the more practical buy if that matters.

Safety recalls

Manufacturers occasionally issue safety recalls to fix a fault free of charge. You can check whether the BMW X4, or your exact vehicle, has any outstanding recalls on the official DVSA service.

Check on GOV.UK

Opens the Driver & Vehicle Standards Agency recall checker. Choose the make, model and year of manufacture — no registration needed.

Theft risk

A general indicator from UK 2025 theft data and this car’s characteristics — not a prediction for any one vehicle.

Whole-car theft

Higher

Desirable SUVs like this are relay-theft targets — keyless entry can be exploited from the driveway in under a minute.

Parts theft

Higher

Hybrid versions are a catalytic-converter target — a hybrid cat is rich in precious metals and can be cut out in about a minute.

Worth doing

Keep keys in a Faraday pouch and away from the front door to block relay attacks.
A catalytic-converter guard or forensic marking makes a hybrid far less appealing to cut.
A visible steering lock is a cheap, strong deterrent on a frequently-targeted car.

Clean-air zones

Whether driving a BMW X4 into a UK clean-air zone will cost you anything. Rules use the same Euro standard across most zones — petrol from 2006 and diesel from 2015 onwards are exempt; pure electric is always exempt.

Charging zones for cars

City	Area	Daily charge	Likely outcome
London	All of Greater London (within the M25)	£12.50	Likely exempt Diesel from September 2015 meets Euro 6.
Birmingham	Inside the A4540 Middleway	£8.00	Likely exempt Diesel from September 2015 meets Euro 6.
Bristol	City centre and part of the Portway	£9.00	Likely exempt Diesel from September 2015 meets Euro 6.
Glasgow	City centre	—	Likely exempt Diesel from September 2015 meets Euro 6.
Edinburgh	City centre	—	Likely exempt Diesel from September 2015 meets Euro 6.
Aberdeen	City centre	—	Likely exempt Diesel from September 2015 meets Euro 6.
Dundee	City centre	—	Likely exempt Diesel from September 2015 meets Euro 6.

Zones that don't charge private cars

Bath — City centre (Private cars and motorbikes are not charged).
Bradford — Outer ring road and the Aire Valley (Private cars are not charged).
Sheffield — Inside the A61 inner ring road (Private cars are not charged).
Newcastle & Gateshead — City centres and the Tyne, Swing, High Level and Redheugh bridges (Private cars are not charged).
Portsmouth — Part of the city centre (Applies to taxis, PHVs, buses, coaches and HGVs only).

Model-level guidance only. To check a specific registration, use the official gov.uk clean-air zone checker. Zone charges and boundaries are set by local councils and change over time.

Company car tax

What HMRC's Benefit-in-Kind charge looks like if you ran this BMW X4 as a company car, by tax year and income-tax band. Calculated from a CO₂ of 206 g/km, using £53,500 as the P11D value.

Tax year	BIK %	Tax @ 20%	Tax @ 40%	Monthly @ 20%	Monthly @ 40%
2025-26	37%	£3,959	£7,918	£330	£660
2026-27	37%	£3,959	£7,918	£330	£660
2027-28	38%	£4,066	£8,132	£339	£678
2028-29	39%	£4,173	£8,346	£348	£696
2029-30	39%	£4,173	£8,346	£348	£696

P11D value is approximated from the latest new price; the exact figure on your tax code will depend on options fitted. The 4% diesel surcharge applies only to non-RDE2 (pre-2021) diesels — we assume RDE2 compliance for current models. Bands and rates from HMRC's Autumn Budget 2024 confirmation through 2029/30.

Servicing & the dealer network

How well-supported BMW is across the UK — a practical read on how easy servicing, parts and warranty work will be to find.

Franchised UK dealers

~145

Large network

Premium mainstream

Network size relative to the UK's largest (BMW is 3.2% of all franchised outlets)

Servicing, parts and warranty work are easy to find UK-wide, and most independent garages know the brand well — which keeps maintenance competitive.

For context, the UK has roughly 4,500 franchised car-dealer outlets in total, plus about 15,500 independent garages.

Approximate figures, curated from public UK industry sources (NFDA, Car Dealer Magazine). Franchised networks shrink year on year — these indicate network size, not an exact count.

Dimensions & weight

These are segment estimates, not manufacturer figures. 296 of 325 catalogued cars share one of 14 identical dimension sets, so they describe a class rather than this particular car. Sourced figures replace them model by model.

Length

4,600 mm

Width

1,880 mm

Height

1,650 mm

Kerb weight

1,750 kg

Boot

500–1,600 L

Fuel tank

60 L

How many are still out there

How the UK BMW X4 fleet splits: taxed and on the road, parked off the road on a SORN, and gone from the register where that figure is available.

Currently registered

20,845

Currently taxed & on road

20,541

99% of all registered

SORN (off road)

304

1% of all registered

Scrapped or exported

n/a

not in this DfT extract

UK fleet trend — 2014 to 2025

+2.8% vs 2024

75920,541

Source: DfT VEH0124 vehicle licensing statistics (year-end 2025) · Updated 29 Jul 2026

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Same underpinnings

Built on the BMW CLAR platform

Rear/all-wheel-drive longitudinal platform for BMW's 3-Series and above. Steel-aluminium hybrid construction. Different badges, often substantially different residuals, but broadly the same mechanicals and repair cost profile.

BMW Cluster Architecture · BMW

Common questions

BMW X4, answered from the data

Is the BMW X4 reliable?: The BMW X4 scores 78/100 on Forecourt's MOT-based reliability measure, ahead of 77% of the cars we track. That is computed from 126,024 real DVSA MOT test results.
How much does a used BMW X4 cost?: A 2023 BMW X4 with around 28,062 miles is worth roughly £26,550 today (typical range £23,150–£29,900). Dealer forecourt prices sit higher and part-exchange offers lower; newer or lower-mileage examples cost more.
How quickly does the BMW X4 depreciate?: A new BMW X4 typically loses about 36% of its value over the first three years, then depreciates more slowly. Buying at three to five years old avoids the steepest part of the curve.
What insurance group is the BMW X4?: The BMW X4 sits in insurance group 30 of 50 — the middle of the scale. Exact premiums depend on the trim (some versions sit a few groups higher or lower), your age, postcode and no-claims history.
What goes wrong on a used BMW X4?: The most common age-related issues we track for the BMW X4 are: tyres & wheels (typically around over 100k miles, £80-£500 to put right); suspension (typically around over 100k miles, £150-£450 to put right); brakes (typically around over 100k miles, £150-£500 to put right). A full service history and a recent MOT with no advisories are the best protection.
What does the BMW X4 cost to run?: Expect around 47 mpg combined on the X4 xDrive20d, £200 a year in road tax, about £290 for a standard annual service. The full cost-of-ownership table above breaks this down per year and per mile for the exact year and mileage you choose.
Is the BMW X4 ULEZ compliant?: Most petrol BMW X4s from 2006 and diesels from September 2015 meet the Euro standards for London ULEZ and other UK clean-air zones, so they are generally exempt from the daily charge. Pure-electric versions are always exempt.
How many BMW X4s are on UK roads?: About 20,541 BMW X4s are currently taxed and on the road in the UK, from DfT vehicle-licensing data.

Answers are generated from this car's Forecourt data — DVSA MOT records, DfT licensing statistics and our valuation model — and update with the weekly data refresh.