MOT advisory · manual section 4.4.3

Individual direction indicator slightly discoloured

What this MOT advisory means, how often testers record it and what the usual repair costs. From 130,233,413 DVSA MOT tests taken 2022 to 2025.

MOT data updated 28 September 2026

As an advisory, per 100 MOTs (n=130,233,413)0.83

Most often at18 years

Times recorded1,085,395

Times recorded adds every DVSA code with this wording, so a test can record it more than once, for example on two wheels under separate codes.

What it means

This is an advisory: the car passes its MOT, and the tester is warning about the part. An advisory is something the tester noticed that could become a defect later. The car passes its MOT. The advice is to monitor the part and repair it if it gets worse.

When it gets worse, the tester records it as a fail: Individual direction indicator incorrect colour.

Every lamp is checked for whether it works, its colour, its condition and its aim, along with the battery, wiring and dashboard warning lamps. Many lamp defects are quick fixes such as a bulb, but some point to a fault in a lamp unit or the wiring.

The tester fails the car when the part reaches the point the MOT inspection manual describes (section 4.4.3):

Lamp emitted colour, position or intensity not in accordance with the requirements

Read this section of the MOT inspection manual on GOV.UK

The DVSA codes counted on this page: the manual item and the defect text as DVSA records them. The heading above joins the two, as a certificate does; the tester also adds the position, such as nearside front.
Result	Manual item	DVSA defect text	Records
Advisory	Individual direction indicators	slightly discoloured (4.4.3)	1,085,395

Got an MOT advisory or defect on a certificate? Paste it into the MOT advisory checker to see what it means.

How common it is by age

Testers record it most at 18 years: 1.91 per 100 MOTs (n=3,261,622 tests at that age).

Per 100 MOT tests of cars at each age, all makes. We show no figure below 20 tests.
Age	Advisory per 100	Tests (n)
3 years	0.024	8,016,463
4 years	0.059	8,699,937
5 years	0.093	9,425,360
6 years	0.13	10,382,720
7 years	0.19	10,537,318
8 years	0.27	10,440,457
9 years	0.45	9,949,012
10 years	0.78	9,049,507
11 years	1.15	8,087,514
12 years	1.57	7,303,151
13 years	1.75	6,612,160
14 years	1.75	6,054,526
15 years	1.75	5,591,675
16 years	1.77	4,858,625
17 years	1.86	4,040,458
18 years	1.91	3,261,622
19 years	1.90	2,479,858
20 years	1.81	1,845,952
21 years	1.76	1,321,417
22 years	1.71	913,980
23 years	1.74	619,531
24 years	1.73	428,815
25 years	1.55	313,355

Models that get it most

Each model generation is compared with cars of the same ages and fuel, so older and diesel models are not penalised for their age or fuel. Generations are never pooled.

Model generations with the highest rate as an advisory, against cars of the same ages and fuel. A model’s figure counts this defect only at ages where it is among that model’s 25 most recorded items, and as zero elsewhere, so it is a floor. Tests (n) are all the generation’s MOT tests at ages with at least 1,000 tests each; at least 5,000 in total.
Model	Per 100 MOTs, at least	Same ages and fuel	Times as often	Tests (n)	Ages
Citroen C3 PicassoCitroen C3 Picasso electrical and lighting problems	3.27	0.23	13.9	22,583	5 to 9
Peugeot RifterPeugeot Rifter electrical and lighting problems	1.32	0.12	10.8	27,746	3 to 6
Ford EcoSportFord EcoSport exterior bulb replacement Ford EcoSport electrical and lighting problems	1.19	0.15	8.0	402,494	3 to 11
SsangYong TivoliSsangYong Tivoli electrical and lighting problems	1.40	0.18	7.5	27,007	3 to 9
Renault ZoeRenault Zoe exterior bulb replacement Renault Zoe electrical and lighting problems	1.85	0.28	6.6	74,266	3 to 11
Ford Tourneo CustomFord Tourneo Custom electrical and lighting problems	0.65	0.13	4.9	29,283	3 to 7
Nissan NV200Nissan NV200 exterior bulb replacement Nissan NV200 electrical and lighting problems	3.14	0.66	4.7	122,396	3 to 15
Vauxhall VivaVauxhall Viva electrical and lighting problems	0.85	0.18	4.7	154,054	3 to 10
Chevrolet OrlandoChevrolet Orlando electrical and lighting problems	5.54	1.28	4.3	16,212	9 to 14
Ford TourneoFord Tourneo electrical and lighting problems	1.34	0.32	4.2	55,404	3 to 11
Mercedes-Benz GLAMercedes-Benz GLA electrical and lighting problems	0.81	0.19	4.1	329,115	3 to 11
Smart Forfourfirst used 2014 or laterSmart Forfour electrical and lighting problems	0.66	0.20	3.3	89,645	3 to 10
Citroen C3Citroen C3 exterior bulb replacement Citroen C3 electrical and lighting problems	3.13	0.94	3.3	784,141	3 to 22
Skoda RoomsterSkoda Roomster electrical and lighting problems	4.18	1.30	3.2	75,084	7 to 18
Peugeot PartnerPeugeot Partner exterior bulb replacement Peugeot Partner electrical and lighting problems	2.17	0.70	3.1	605,323	3 to 23
Toyota VersoToyota Verso electrical and lighting problems	3.00	0.97	3.1	112,639	5 to 16
Citroen BerlingoCitroen Berlingo exterior bulb replacement Citroen Berlingo electrical and lighting problems	2.54	0.83	3.0	750,010	3 to 24
Renault ScenicRenault Scenic electrical and lighting problems	4.15	1.37	3.0	175,093	5 to 23
Toyota ProaceToyota Proace electrical and lighting problems	0.69	0.23	2.9	41,151	3 to 10
Jeep RenegadeJeep Renegade electrical and lighting problems	0.70	0.25	2.8	110,103	3 to 10

Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.

Repair and cost

The usual repair is exterior bulb replacement, priced per bulb.

Median price (78 shops)£3.99

Middle half of prices£2.50 to £7.99

ONS price quotes for “CAR BULB 12 VOLT SPECIFY WATTS”, September 2025 to August 2026, UK, 1,677 quotes from 78 shops, priced per bulb. This is the price of the bulb. Some cars need a bumper or wheel-arch liner removed to reach it, which adds labour, and many newer cars have sealed LED lamps with no separate bulb. Consumer prices as quoted.

If a garage also charges labour

Local garage labour, per hour (65 shops)£78

Local garage, middle half£70 to £96

Main dealer labour, per hour (62 shops)£156

Main dealer, middle half£144 to £174

Median hourly rate charged for car repairs, from 1,058 local garage and 953 main dealer price quotes collected by the ONS, September 2025 to August 2026. The same shops are priced each month, so the number of shops is the real sample.

Exterior bulb replacement: cost and the models that need it more often

Related MOT defects

Registration plate lamp inoperative in the case of multiple lamps or light sources3.00 per 100
Position lamp not working2.54 per 100
Stop lamp not working1.94 per 100
Headlamp not working on dipped beam1.43 per 100
Headlamp aim projected beam image is obviously incorrect1.29 per 100
Headlamp aim too low1.18 per 100
Registration plate lamp inoperative in the case of a single lamp or all lamps1.09 per 100
Headlamp aim too high0.87 per 100
Headlamp lens slightly defective0.84 per 100
Headlamp has a product on the lens but not seriously reducing light output0.74 per 100

All lamps, reflectors and electrical equipment defects All MOT defects Car repair costs

Buying a used car?

These figures describe all cars, not any one car. Found one you might buy? See what the VetTheCar Buying Report would tell you.

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Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025, and the MOT inspection manual published on GOV.UK. Prices: ONS consumer price inflation price quotes, September 2025 to August 2026, UK.

MOT data updated 28 September 2026. Prices updated 22 September 2026.

Not affiliated with or endorsed by DVSA or the Office for National Statistics. How we calculate these figures · Data sources