Fault File
All models / All cars / Superminis / Dacia Logan

Dacia Logan

All generations and engines together · 15,090 MOT tests in the 2025 data · typical mileage at age 7: 76k

First-time failure at age 7
31.5%
Across 1,894 tests. The average across all tracked models is 19.5%.
Rank at age 7
226 of 239
1 = lowest failure rate among the models tracked.
Typical mileage at age 7
76k miles
Check the mileage view below; low-mileage models can look better by age than they are.

How this model wears

Dacia LoganClass 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. 9,177 tests in this band.

A suspension pin, bush or joint excessively worn
Advisory
4.9%class 1.1%
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED
Fail
2.5%class 0.8%
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Fail
2.1%class 0.8%
A suspension pin, bush or joint excessively worn
Fail
2.0%class 0.7%
Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users
Advisory
1.8%class 2.0%
A spring or spring component fractured or seriously weakened
Fail
1.7%class 1.4%
A wheel badly distorted or wear between wheel and hub at spigot mounting
Advisory
1.5%class 0.6%
A suspension component excessively damaged or corroded
Advisory
1.3%class 0.6%
A suspension component fractured or likely to fail
Fail
1.2%class 0.0%

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
29.4%class 22.9%
A tyre seriously damaged
Advisory
14.6%class 11.1%
Brake disc or drum excessively weakened, insecure or fractured
Advisory
8.5%class 10.1%
The aim of a headlamp is not within limits laid down in the requirements
Fail
7.3%class 2.2%
A brake lining or pad worn below 1.5mm
Advisory
5.9%class 8.7%
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
Minor
4.5%class 1.2%
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Fail
4.3%class 1.2%
Brake disc or drum significantly and obviously worn
Advisory
3.9%class 3.4%

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.

Clutch pedal randomly won't select a gear

Emerging

Owners of manual Logans report the car occasionally refusing to go into any gear, usually in slow traffic. The likely cause is the shared brake/clutch fluid reservoir: a diaphragm valve can stick, stopping the clutch from disengaging properly. The fix is a brake fluid change and, if that doesn't clear it, a new clutch slave cylinder, typically £100-300 at an independent garage. No recall or dealer bulletin found for it, so it's treated case by case.

Reported from around 30k miles · sources: Honest John (Ask HJ reader reports)

Notchy, baulky gearchange (dCi manual)

Diesel only

A separate but related complaint on the 1.5 dCi diesel manual: the gearchange feels notchy and reluctant to find gears cleanly, especially when cold. Owners have linked it to gearbox oil condition and worn selector cables rather than anything more serious. A clutch/gearbox check and fresh gear oil often improves it; if it doesn't, linkage bushes or the selector cable itself may need replacing, a job in the low hundreds of pounds.

Sources: Honest John (Ask HJ), Dacia Owners Club UK forum

EGR clogging and turbo wear on the 1.5 dCi

Diesel only

The 1.5 dCi is a shared Renault-Nissan diesel unit, and owners report the usual diesel-EGR story: sooting around the EGR valve and turbo, rough idle, and a loss of power that gets worse with short journeys and skipped oil changes. Most cases are an EGR clean or valve replacement (roughly £150-450); full turbo replacement is rarer but runs closer to £600-1,200. No official recall found, this is wear-and-tear behaviour typical of the engine family rather than a one-off fault.

Reported from around 60-100k miles · sources: UK and French Dacia owner forums, Honest John diesel engine notes

0.9 TCe petrol: timing chain and coil wear

Emerging

On the 0.9 TCe three-cylinder turbo petrol, owners and independent trackers of the engine report timing chain wear, a leaking thermostat housing, and failing ignition coils becoming more common from roughly 80,000km (about 50,000 miles) onward, particularly where oil changes have been stretched. None of this is manufacturer-acknowledged as a pattern fault; it shows up as individual repairs rather than a campaign. A chain job is a bigger bill than a cambelt would be, expect somewhere in the £400-800 range if it's needed.

Reported from around 50k miles / 80,000km · sources: owner/repair-cost trackers (CarChecker), Dacia forums

Front suspension knocks and creaks

Partly in the MOT data

A long-standing complaint: knocking over bumps, creaking on turns and a loose feeling through the steering at low speed, blamed on worn bushes and shock absorbers. This is a supermini-class car and suspension is the class's measured MOT signature fault, so the pattern in the data lines up with what owners describe. Typical fix is bushes, top mounts or shocks on the front end, £150-300 a side, more if it's left until it fails an MOT outright.

Reported from around 50-60k miles · sources: Dacia/Sandero owner forums, UK Dacia Forum

Media Nav touchscreen glitches

Disputed

Some owners report the Media Nav infotainment screen misbehaving: touch inputs registering on their own, postcodes or radio presets not entering correctly, or on-screen graphics (clock, volume bar) becoming corrupted. Others report no trouble at all across ownership, and a firmware update through Dacia's own multimedia support fixes it for some cars but not others, which is why it's a disputed one rather than a confirmed pattern. Independent repair of the unit itself, when needed, is roughly £150-400.

Sources: Dacia owner forum reports, independent infotainment repair specialists (advancedrepair.co.uk), Dacia's own Media Nav FAQ acknowledging some units need updates

Viewing one? Ask this

Built from the two sections above.

Cold-start it and work the clutch through all gears in the first few minutes. Notchy or baulky changes on a dCi diesel point to the gearbox-oil/selector issue.
Sit in traffic or simulate stop-start for a few minutes and try changing gear repeatedly. Occasional refusal to select any gear is the shared brake/clutch fluid reservoir fault.
Check the oil dipstick and filler cap on a TCe petrol car. Milky residue or an overfull, diluted-smelling oil hints at chain/oil-dilution wear building up.
On a dCi diesel, floor it briefly from low revs and watch the mirror. A puff of blue-grey smoke or flat power suggests EGR sooting or a tired turbo.
Drive it over a rough patch of road and through a couple of tight turns. Knocking or creaking from the front end is the well-known suspension complaint, and worth pricing in.
Prod every button and menu on the Media Nav screen, including postcode entry. Unresponsive touch or corrupted graphics is the disputed infotainment glitch, not always fixed by an update.
Pull the full MOT history, not just the pass/fail line. Repeated suspension advisories year after year back up what the forums say about bushes and shocks wearing early.

Others in its class

Same segment (Superminis), best MOT record first. Compare before you shortlist.