CARMOTIQ Model Research Report
BMW iX3
2016–2021
The BMW iX3 MOT pass rate for cars first registered 2016–2021 is 88.2% across 7,276 official UK DVSA tests. If a used BMW iX3 is on your shortlist, UK reviewers tend to praise its refinement, cabin quality and premium electric-SUV credentials. But what does the official UK MOT record add to that picture? An 88.2% pass rate across 7,276 tests is solid — but 2,520 tyre notes on the same model fleet show that routine upkeep, not platform drama, is where most MOT friction lives.
Unlike a registration check, this report analyses how thousands of similar BMW iX3 models have performed at MOT over time—not just one vehicle.
Report Dataset
- Official UK DVSA MOT tests analysed
- 7,276
- Recorded defect notes
- 5,965
- Registration era
- 2016–2021
- Coverage
- United Kingdom
- Snapshot
- 17 August 2026
- Research method
- Aggregated model-level MOT analysis
MOT pass rate
88.2%
of MOT tests passed
MOT tests analysed
7,276
Defect notes recorded
5,965
Key Findings
BMW iX3 (2016–2021)
- 88.2% MOT pass rate across 7,276 DVSA tests for BMW iX3 cars first registered 2016–2021.
- 5,965 defect notes recorded in total; 4,950 (83%) are classed as owner maintenance rather than wear or systemic design issues.
- "Tyre worn close to legal limit/worn on edge" appears 2,520 times — the single highest-volume defect note in the dataset.
- Only 35 defect notes are classed as systemic; the highest-count systemic item appears once in the record.
- Shock absorber oil misting (123 notes) and headlamp aim too low (77 notes) are the next most frequent upkeep items after tyres.
BMW iX3 Research Summary
If a used BMW iX3 is on your shortlist, UK reviewers tend to praise its refinement, cabin quality and premium electric-SUV credentials — a used EV pick judged on range, interior quality and driving manners as much as on badge appeal.
Carmotiq analysed 7,276 official DVSA MOT tests for BMW iX3 cars first registered 2016–2021, covering vehicles in the 5–10 years old registration-era band we use for consistent make-and-model comparisons. The pass rate: 88.2%. That's make-and-model evidence from official MOT records — not one registration plate, a private sale or a magazine reliability score. Of 5,965 recorded defect notes, 4,950 fall under owner maintenance, 71 under wear and tear, 35 under systemic issues and 909 under other categories. The standout pattern is tyres and routine upkeep: "Tyre worn close to legal limit/worn on edge" appears 2,520 times, followed by shock absorber oil misting (123), a non-working windscreen washer (87) and headlamp aim set too low (77).
That matters when viewing a used iX3 because tyre condition is something you can check for yourself: tread depth and, importantly, tyre edge wear. Pair that with a quick look at dampers, washer jets, glass and headlamp aim. The free report turns those MOT patterns into practical checks for anyone weighing up a used BMW iX3 — alongside a physical inspection and a GOV.UK history on the specific car.
What this doesn't tell you
This report describes model-level MOT trends, not the condition of any individual vehicle.
Two identical BMW iX3 models can have very different maintenance histories.
Use this report to understand common patterns before inspecting a specific car.
How we classify MOT faults
We group recorded DVSA defect wording into four research categories to help identify whether issues are more likely to reflect routine maintenance, expected wear, recurring model patterns or miscellaneous inspection outcomes.
- Owner maintenance
- Defects often linked to day-to-day upkeep — for example tyres, lamps, washers and other items a careful owner can usually prevent or fix promptly.
- Wear & tear
- Age- and mileage-related deterioration that accumulates with normal use, even when a car has been looked after.
- Systemic
- Recurring wording and patterns that appear across the model fleet and may point to design, component or known-model tendencies rather than one careless owner.
- Other
- Inspection outcomes that do not sit cleanly in the three groups above, including mixed or less classifiable defect notes.
How MOT failures break down
Share of recorded defect notes by category for BMW iX3 in this age band (not MOT tests and not number of vehicles).
- Owner maintenance
83% · 4,950
defect notes
- Wear & tear
1.2% · 71
defect notes
- Systemic
0.6% · 35
defect notes
- Other
15.2% · 909
defect notes
Severity mix
How those defect notes were graded — advisory, minor, major or dangerous — summed across categories for this model band.
Advisory
4,543
defect notes
Minor
331
defect notes
Major
748
defect notes
Dangerous
343
defect notes
Most Common Owner-Maintenance Faults
DVSA wording grouped as owner maintenance for this model and age band.
Tyre worn close to legal limit/worn on edge
- Recorded
- 2,520 MOT defect notes
- DVSA code
- 5.2.3 (e)
What it means
Tread is close to (or at) the legal minimum, or wear is concentrated on an edge. That often points to alignment, pressure or suspension issues as well as simple age.
Why it happens
Under-inflation, poor alignment, aggressive driving or simply delayed replacement push tread below a safe/legal profile.
Buyer tip
Measure tread across the full width, check tyre age (DOT date) and look for uneven inner-edge wear.
Severity
Usually maintenance related
Shock absorbers has light misting of oil
- Recorded
- 123 MOT defect notes
- DVSA code
- 5.3.2 (b)
What it means
A damper mounting bush is worn, which can cause knocks, vague handling and accelerated tyre wear.
Why it happens
Rubber bushes harden and tear with age, road salt and repeated suspension movement.
Buyer tip
Listen for clunks over speed bumps and have a mechanic check top mounts and lower bushes.
Severity
Usually maintenance related
Windscreen washer not working
- Recorded
- 87 MOT defect notes
- DVSA code
- 3.5 (a)
What it means
Washer jets are not delivering fluid. Testers need a clear screen; empty reservoirs, blocked jets or failed pumps are common.
Why it happens
Empty bottles, frozen/blocked jets, split pipes or a failed pump stop fluid reaching the screen.
Buyer tip
Top up fluid, test the jets on the driveway, and check for cracked bottles or split pipes in the engine bay.
Severity
Usually maintenance related
Headlamp aim too low
- Recorded
- 77 MOT defect notes
- DVSA code
- 4.1.2 (a)
What it means
This MOT defect usually indicates incorrect headlamp alignment following adjustment, suspension movement or repair work.
Why it happens
Aim drifts after suspension work, bumper repairs, bulb changes or simply from road vibration over time.
Buyer tip
Check beam alignment during inspection and ask whether the lamps were aimed after any recent suspension or bodywork.
Severity
Usually maintenance related
Tyre pressure monitoring system malfunctioning or obviously inoperative
- Recorded
- 13 MOT defect notes
- DVSA code
- 5.2.3 (h)
What it means
The tyre pressure monitoring system is reporting a fault or is clearly not working, so you may not get a dashboard warning of under-inflation.
Why it happens
Flat battery sensors after tyre changes, damaged valves or control-module faults are common.
Buyer tip
Confirm whether sensors need replacing after recent tyre or wheel work, and check pressures manually anyway.
Severity
Usually maintenance related
Seat belt webbing slightly damaged or frayed
- Recorded
- 8 MOT defect notes
- DVSA code
- 7.1.2 (b)
What it means
Seat-belt webbing is frayed or lightly damaged, which can weaken the belt in a crash.
Why it happens
Abrasion at guides, trapped belts or age fray the webbing fibres.
Buyer tip
Pull each belt fully out and inspect for cuts, fraying and weak retraction.
Severity
Usually maintenance related
Headlamp has a product on the lens but not seriously reducing light output cleaning
- Recorded
- 6 MOT defect notes
- DVSA code
- 4.1.4 (b)
What it means
This wording appears on DVSA MOT records for this model. It flags a tester-observed defect or advisory that can affect safety, legality or a future pass.
Why it happens
These issues often build up when routine checks are skipped between services — tyres, lamps and washers are typical examples.
Buyer tip
Ask the seller for invoices covering this item, and have an independent inspector confirm whether it is still present.
Severity
Usually maintenance related
Headlamp levelling device inoperative Broken
- Recorded
- 4 MOT defect notes
- DVSA code
- 4.1.5 (a)
What it means
The automatic or manual headlamp levelling system is not working, so beam height may not adjust correctly with load.
Why it happens
Failed levelling motors, sensors or switches stop the beam adjusting when the car is loaded.
Buyer tip
Test levelling controls (if fitted) and treat persistent warnings as a bargaining point.
Severity
Usually maintenance related
Most Common Wear & Tear Faults
DVSA wording grouped as wear and tear for this model and age band.
No wear-and-tear items in this extract.
Most Common Systemic Faults
DVSA wording grouped as systemic patterns for this model and age band.
Brake performance unable to be tested due to wind screen cracked and obstructing drivers view
- Recorded
- 1 MOT defect notes
- DVSA code
- 1.2.1 (g)
What it means
Service brake performance could not be fully verified, or a brake is binding/fluctuating. That often points to worn discs, seized calipers or hub issues.
Why it happens
Seized caliper slides, worn discs or contaminated friction material upset brake balance.
Buyer tip
Insist on a road test and a proper brake inspection; unresolved binding can destroy pads and hubs.
Severity
Often a recurring model pattern
Recent year-by-year category counts
Defect-note totals by calendar year in the serving extract (not MOT tests, not vehicles, and not a prediction).
| Year | Owner maintenance | Wear & tear | Systemic | Other |
|---|---|---|---|---|
| defect notes | defect notes | defect notes | defect notes | |
| 2022 | 2 | 0 | 0 | 0 |
| 2023 | 1 | 0 | 0 | 0 |
| 2024 | 1,884 | 19 | 11 | 298 |
| 2025 | 2,221 | 36 | 18 | 452 |
| 2026 | 842 | 16 | 6 | 159 |
Buying a used BMW iX3: practical MOT checks
- Inspect all four tyres for tread depth across the full width and, importantly, tyre edge wear — "Tyre worn close to legal limit/worn on edge" appears 2,520 times in this extract.
- Look along each shock absorber for oil misting or dampness around the body (123 MOT notes).
- Confirm the windscreen washer works and the glass is free of cracks or chips that could obstruct the driver's view.
- Check headlamp aim and levelling at dusk or against a wall — low aim appears repeatedly in the MOT record.
- Ask whether any TPMS warning has appeared recently and whether tyres have been replaced in matched sets with correct pressures.
Frequently asked questions
- What is the BMW iX3 MOT pass rate for 2016–2021 registrations?
- In Carmotiq's BMW iX3 extract for cars first registered 2016–2021, the MOT pass rate is 88.2% across 7,276 recorded DVSA tests.
- What is the most common BMW iX3 MOT defect?
- "Tyre worn close to legal limit/worn on edge" appears 2,520 times — the single highest-volume defect note in the dataset.
- Are BMW iX3 MOT problems usually design faults or upkeep?
- Most defect notes are classed as owner maintenance: 4,950 of 5,965 recorded items. Systemic notes account for 35, and wear-and-tear for 71.