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MOT History from tests of diesel RENAULT UNKNOWNs year 2018

Review the list of common RENAULT UNKNOWN failures below or to perform a specific mot history check on your RENAULT then use our popular KnowYourCar service

mot history
Pass percent:79.40%
(The average a diesel RENAULT UNKNOWN year 2018 passes without issue)
Based on:670 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment27
Windscreen wiper does not clear the windscreen effectively19
Parking brake efficiency below requirements (1.4.2 (a) (i))17
Registration plate lamp issues15
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))10
Offside Front Position lamp not working (4.2.1 (a) (ii))10
Nearside Front Position lamp not working (4.2.1 (a) (ii))9
Registration plate issues7
Offside Rear Service brake excessively binding (1.2.1 (f))5
Brakes imbalanced across an axle5
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))5
Nearside Rear Position lamp not working (4.2.1 (a) (ii))5
Nearside Rear Service brake excessively binding (1.2.1 (f))4
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))4
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))4
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))4
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))4
Offside Front Outline marker lamp not working (4.2.1 (a) (ii))3
Offside Rear fog lamp not working (4.5.1 (a) (ii))3
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))3
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))3
Offside Front Side repeater not working (4.4.1 (a) (ii))3
Windscreen washer not working 3
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))3
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))3
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))3
Nearside Side repeater not working (4.4.1 (a) (ii))3
Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))3
Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))3
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))2
Offside Parking brake inoperative on one side (1.4.1 (a))2
Service brake efficiency below requirements (1.2.2 (a) (i))2
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))2
Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i))2
Offside Rear Outline marker lamp not working (4.2.1 (a) (ii))2
Offside Side repeater not working (4.4.1 (a) (ii))2
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))2
Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))2
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Offside Rear Outline marker lamp missing (4.2.1 (a) (ii))1
Nearside Front fog lamp not working (4.5.1 (a) (ii))1
Rear Service brake excessively binding (1.2.1 (f))1
Nearside Side repeater incorrect colour in door mirror (4.4.3 (a))1
Rear Brake cable has restricted free movement (1.1.15 (e))1
Nearside Front Headlamp levelling device inoperative (4.1.5 (a))1
Offside Front Headlamp levelling device inoperative (4.1.5 (a))1
Offside Front Body component damaged and likely to cause injury headlamp (6.2.1 (a) (i))1
Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b))1
Steering system excessively rough (2.1.1 (a))1
Offside Front Headlamp levelling device inoperative adjuster not working (4.1.5 (a))1
Nearside Side repeater incorrect colour (4.4.3 (a))1
Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Offside Front Headlamp aim not tested (4.1.2 (b))1
Offside Parking (secondary brake) on a single line braking system has no recorded effort at a wheel (1.3.1 (a) (ii))1
Front Undertray likely to become detached (6.2.1 (a) (ii))1
Offside Parking (secondary brake) on a single line braking system grabbing severely (1.3.1 (c))1
Nearside Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i))1
Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i))1
Parking brake lever has excessive movement indicating incorrect adjustment Reaches stop before required effort achieved (1.1.6 (c))1
Nearside Front Headlamp aim not tested (4.1.2 (b))1
Front Position lamp not working both front (4.2.1 (a) (ii))1
Nearside Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Front Service brake excessively fluctuating (1.2.1 (e))1
Nearside Front Seat belt anchorage loose bolt missing (7.1.1 (b))1
Nearside Front Suspension arm pin or bush likely to become detached LOWER WISHBONE REAR BUSH (5.3.4 (a) (ii))1
Offside Front Suspension arm pin or bush likely to become detached LOWER WISHBONE REAR BUSH (5.3.4 (a) (ii))1
Nearside Front Direction indicator incorrect colour (4.4.3 (a))1
Nearside Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Front Headlamp has a product on the light source so that the light output is severely reduced (4.1.4 (b))1
Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d))1
Nearside Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Outline marker lamp missing (4.2.1 (a) (ii))1
Nearside Rear Outline marker lamp missing (4.2.1 (a) (ii))1
Offside Front Lower Suspension component ball joint likely to become detached (5.3.4 (a) (ii))1
Nearside Stop lamp(s) lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii))1
Offside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c))1
Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a))1
Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i))1
Fuel cap/sealing device ineffective (6.1.3 (b) (i))1
Nearside Outline marker lamp missing all (4.2.1 (a) (ii))1
Offside Outline marker lamp missing front and rear of bed (4.2.1 (a) (ii))1
Offside Outline marker lamp not working central on bed (4.2.1 (a) (ii))1
Offside Rear Brake cable has restricted free movement (1.1.15 (e))1
Offside Front Service brake excessively binding (1.2.1 (f))1
Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c))1
Braking system leaking vacuum leak servo to master cylinder (1.1.3 (d))1
Brake servo defective or ineffective (1.1.10 (a) (i))1
Offside Brake servo inoperative vacuum leak from servo to master cylinder (1.1.10 (a) (ii))1
Nearside Rear Upper Outline marker lamp missing (4.2.1 (a) (ii))1
Offside Rear Upper Outline marker lamp missing (4.2.1 (a) (ii))1
Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front Upper Outline marker lamp missing (4.2.1 (a) (ii))1
Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Front Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Front Headlamp aim projected beam image is obviously incorrect Bulb fitting (4.1.2 (c))1
Nearside Front Side repeater incorrect colour Too faded (4.4.3 (a))1
Nearside Outline marker lamp not working All (4.2.1 (a) (ii))1
Emission control equipment obviously defective (8.2.2.1 (a))1
Bonnet primary retaining device ineffective (3.1 (c))1
Central Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front Body component damaged and likely to cause injury (6.2.1 (a) (i))1
Nearside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i))1
Nearside Body component damaged and likely to cause injury (6.2.1 (a) (i))1
Offside Body component damaged and likely to cause injury (6.2.1 (a) (i))1
Offside Headlamp levelling device inoperative (4.1.5 (a))1
Offside Front Direction indicator likely to become detached sharp edges (4.4.1 (c) (ii))1
Rear Upper Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Rear Service brake lagging in operation (1.2.1 (d))1
Offside Parking brake inoperative on one side little effort (1.4.1 (a))1
Emissions not tested (8.2.2.2 (e))1
Offside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b))1
Offside Rear Position lamp not working (4.2.1 (a) (ii))1
Nearside Headlamp aim unable to be tested (4.1.2 (b))1
Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Front Parking brake lever is not capable of being maintained in operation by direct mechanical action only (1.1.6 (f))1
Offside Rear Front fog lamp not working (4.5.1 (a) (ii))1
Nearside Rear Reversing lamp inoperative (4.6.1 (a))1
Offside Rear Side repeater not working (4.4.1 (a) (ii))1
Brake pedal anti-slip provision worn smooth (1.1.2 (c))1
Nearside Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Obligatory mirror insecure (3.3 (b) (ii))1
Nearside Front Headlamp lens seriously defective (4.1.1 (b) (ii))1
Offside Front Shock absorbers has a serious fluid leak1
Nearside Rear All direction indicators not working (4.4.1 (a) (ii))1
Nearside Body component damaged and likely to cause injury sliding door (6.2.1 (a) (i))1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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