Fault File
All models / All cars / City cars / Suzuki Alto

Suzuki Alto

All generations and engines together · 41,030 MOT tests in the 2025 data · typical mileage at age 7: 12k

Typical mileage at age 7
12k miles
Check the mileage view below; low-mileage models can look better by age than they are.

How this model wears

Suzuki AltoClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 40,397 tests in this band.

Brake pipe damaged or excessively corroded
Advisory
31.9%class 6.2%
A spring or spring component fractured or seriously weakened
Advisory
24.6%class 5.0%
A suspension pin, bush or joint excessively worn
Advisory
24.5%class 9.0%
A suspension component excessively damaged or corroded
Advisory
12.4%class 7.8%
A transmission shaft constant velocity joint boot severely deteriorated
Minor
8.4%class 1.5%
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Fail
7.5%class 1.8%
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Fail
5.8%class 3.5%
Brake pipe damaged or excessively corroded
Fail
5.5%class 0.8%
Headlamp reflector or lens slightly defective
Minor
4.5%class 1.3%
A suspension joint dust cover severely deteriorated
Minor
4.1%class 1.4%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Tyre tread depth not in accordance with the requirements
Advisory
26.1%class 23.4%
A tyre seriously damaged
Advisory
17.5%class 9.7%
Brake disc or drum excessively weakened, insecure or fractured
Advisory
8.4%class 11.4%
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
Minor
6.1%class 3.3%
Wiper blade missing or obviously not clearing the windscreen
Fail
5.8%class 2.0%
A brake lining or pad worn below 1.5mm
Advisory
5.1%class 7.2%
Tyre tread depth not in accordance with the requirements
Fail
3.6%class 2.6%
Wiper blade defective
Minor
2.6%class 0.9%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

Engine and gearbox mount failures

Emerging

Several owners report the rubber engine and transmission mounts wearing out or failing early, causing a clunk on take-up and extra vibration through the cabin. One owner needed a third set of mounts by 7,500 miles, and similar reports have surfaced across the model's life. No manufacturer acknowledgement or TSB has been found for this, so treat it as a known weak point rather than a confirmed defect. Parts and labour for a set of mounts typically run to a few hundred pounds.

Reported from as early as 7,500 miles up to higher-mileage cars · sources: Honest John road test owner comments, Honest John model overview

Wiper and washer system leaking into the footwell

Emerging

A recurring complaint is the wiper/washer mechanism failing and water finding its way in through the linkage, leaving the driver's footwell carpet damp. Owners describe having to replace the wiper motor or linkage more than once over ownership. It is a nuisance and a potential cause of electrical dampness rather than a big-ticket repair, with parts typically in the tens of pounds plus fitting.

Reported across the ownership period, not tied to one mileage band · sources: Honest John road test owner comments, Honest John model overview

Exhaust drone or resonance, especially in the wet

Disputed

Some owners note a resonant exhaust note and a feeling of reduced power when driving in wet conditions, which Honest John's own write-up ties tentatively to the same worn engine/transmission mounts rather than the exhaust itself. Because the source can't be pinned down definitively, and only a handful of owners mention it, this sits as a disputed rather than settled fault. Worth a test drive on a wet day before you buy.

Reported intermittently, cause unconfirmed · source: Honest John road test owner comments

Cabin rattles and unexplained noises developing over time

Disputed

Auto Express's long-term test of the Alto turned up what the testers called a 'mystery noise' that wasn't fully diagnosed, and trim/dash rattles are a common complaint on cheap, lightly-built city cars generally as they age. It's rarely expensive to fix but can take a few attempts to track down, and used buyers should expect some by higher mileages.

Turned up during long-term ownership, exact cause undiagnosed · source: Auto Express long-term test

Thrummy three-cylinder engine mistaken for a fault

Disputed

The 1.0-litre three-cylinder is repeatedly described in reviews as 'thrummy' next to rivals like the Hyundai i10, and some vibration and coarseness at idle and low revs is simply how the engine is. Buyers unfamiliar with three-cylinder engines sometimes assume this points to a mechanical problem when it's normal character, so it's worth a test drive to know what's typical before assuming a fault.

Normal engine character, not a defect · sources: Honest John model overview, general road test commentary

Viewing one? Ask this

Built from the two sections above.

Rev the engine gently in neutral and feel for excess engine movement or a clunk when you lift off. Pronounced rocking or a clunk on take-up points to worn engine or transmission mounts.
Check the driver's footwell carpet for damp, especially after rain, and run the wipers and washers through a full cycle. A soggy footwell or wipers that judder or stick suggests the wiper/washer linkage has failed and is letting water in.
If you can, test drive in the wet or listen closely for a droning exhaust note. A resonant drone with a feeling of lost power in the wet is a known but unexplained complaint on this model.
Drive over a rough or poorly surfaced road and listen for rattles from the dash and trim. Some rattling is common on higher-mileage cars and isn't usually serious, but persistent noise the seller can't explain is worth negotiating on.
Let the engine idle from cold and note the vibration level before and after it warms up. Some thrum and vibration from the three-cylinder engine is normal; harsh vibration that persists once fully warm is not.
Ask to see the service history and check mounts, wipers and exhaust hangers were looked at during servicing. A gap in history makes it harder to know if these known weak points have already been addressed.
Check the MOT history for repeat advisories in the same area. The same advisory appearing year after year means a known issue has been left unresolved rather than fixed.

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