Renault G

Registered from 2010 to 2015.

What fails its inspection

Great Britain's MOT record for the 2014 1.5 diesel. 268 of 890 tests failed, 30%.

Better than 0% of 2014 cars. The typical one fails 17%, across 870 models with enough tests behind them to say.

Where	Share of failures	Failed tests
Lights and electrics	48%	129
Suspension	47%	126
Body and structure	33%	88
Tyres and wheels	20%	54
Steering	20%	53
Brakes	18%	47

The defects inspectors cite

A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
A spring or spring component fractured or seriously weakened
A suspension pin, bush or joint excessively worn
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
A steering ball joint with excessive wear or free play
Tyre tread depth not in accordance with the requirements

Where it stands out against its peers

Lights and electrics: failed more often than 94% of 2014 cars — 48% of its 268 failed tests, where an ordinary 2014 car has 25%.
Body and structure: failed more often than 96% of 2014 cars — 33% of its 268 failed tests, where an ordinary 2014 car has 6%.
Steering: failed more often than 92% of 2014 cars — 20% of its 268 failed tests, where an ordinary 2014 car has 4%.

Same model year only, at least 30 peer cars, zeros included. Every car has a worst part; this shows which, and how far from ordinary it is. A high share means more to check, not a verdict.

NHTSA's investigations are American; no European regulator publishes an equivalent record, so this section has nothing to draw on for a European car. There is no European equivalent of the service-bulletin register either.

Before you buy one

Built from what this car fails on, not from general knowledge of the model.

Suspension — 47% of its failures
- A spring or spring component fractured or seriously weakened
- A suspension pin, bush or joint excessively worn
Tyres and wheels — 20% of its failures
- Tyre tread depth not in accordance with the requirements
Steering — 20% of its failures
- A steering ball joint with excessive wear or free play
Brakes — 18% of its failures
- A brake lining or pad worn below 1.5mm
Lights and electrics — 48% of its failures
- Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Body and structure — 33% of its failures

When it starts failing

At 120–140k miles this one fails 36% of its inspections, against the 23% an ordinary car of the same age fails.

Odometer	Rate	Its age	Tests
20–40k miles	28%	11%	32
40–60k miles	23%	15%	125
60–80k miles	29%	19%	287
80–100k miles	33%	21%	243
100–120k miles	33%	23%	104
120–140k miles	36%	23%	64

855 British inspections, grouped by the odometer reading recorded at the test.

Half of these have more than 60k miles on them. That is how far people drive this car, not how long it lasts.