Pass rate, every year
88.6% Above average
193 tests across 3 model years, 2008–2010.
+7.6 pts vs the national average
Dinli DL801 (quad Bike) MOT Pass Rate & Official DVSA Failure Statistics
Best year to buy
2010 91.7%
The strongest of the 3 years on record. See the 2010 page →
Worst year to buy
2008 84.0%
7.7 points below the 2010 peak. See the 2008 page →
The Dinli DL801 (quad Bike) MOT pass rate is 88.6%, +7.6 percentage points above the UK average. That is 193 DVSA MOT tests recorded between 2008 and 2010. This page lists the most common Dinli DL801 (quad Bike) MOT failures by category, names the best and worst model years, and finishes with a pre-MOT checklist you can run at home.
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Dinli DL801 (quad Bike) MOT History and Failure Rates vs UK National Average
The Dinli DL801 (quad Bike) passed on its first attempt in 87.7%, and its overall record sits +7.6 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Dinli DL801 (quad Bike) in the 2023–2025 data: 193 tests across 3 model years (2008–2010). A test still carries exactly one pass or fail verdict.
| Measure | This model |
|---|---|
| Tests analysed | 193 |
| Overall pass rate | 88.6% |
| Passed on first attempt | 87.7% |
| Average mileage at test | 6,682 mi |
| Model years covered | 2008–2010 (3 years) |
| Versus UK national average | +7.6 pts above |
Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.
Most Common Dinli DL801 (quad Bike) MOT Problems by Failure Category
Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Dinli DL801 (quad Bike), the Lamps, reflectors and electrical equipment section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.
| Inspection section | Share of failures |
|---|---|
| Lamps, reflectors and electrical equipment | 32% |
| Brakes | 22% |
| Suspension | 22% |
| Steering | 17% |
| Identification of the vehicle | 5% |
| Tyres | 2% |
Shares are over the Dinli DL801 (quad Bike)'s recorded defect strings, merged across its year pages.
Lamps, reflectors and electrical equipment
Around 32% of the recorded Dinli DL801 (quad Bike) failures fall in the Lamps, reflectors and electrical equipment section of the MOT inspection manual. Testers recorded "Horn not working" (1.0%), "Position lamp not working" (1.0%), "Headlamp aim projected beam image is obviously incorrect" (1.0%) among the Dinli DL801 (quad Bike)'s lamps, reflectors and electrical equipment faults.
Brakes
Around 22% of the recorded Dinli DL801 (quad Bike) failures fall in the Brakes section of the MOT inspection manual. Testers recorded "Decelerometer (sp) efficiency less than 50% of the required value" (1.6%), "Brake pads less than 1.5 mm thick" (1.6%), "Lever missing" (0.5%) among the Dinli DL801 (quad Bike)'s brakes faults.
Suspension
Around 22% of the recorded Dinli DL801 (quad Bike) failures fall in the Suspension section of the MOT inspection manual. Testers recorded "Ball joint excessively worn" (3.1%), "Ball joint dust cover no longer prevents the ingress of dirt" (0.5%), "Axle insecure such that functionality is affected" (0.5%) among the Dinli DL801 (quad Bike)'s suspension faults.
Top Recorded Dinli DL801 (quad Bike) DVSA MOT Test Statistics & Defect Descriptions
The descriptions below are the exact DVSA failure strings testers recorded most often for the Dinli DL801 (quad Bike), each with how many of the model's 193 tests it was noted on.
- "Ball joint excessively worn" (Major) — noted on about 6 Dinli DL801 (quad Bike) tests, 3.1% of the model's MOT record.
- "Track rod end ball joint has excessive play" (Major) — noted on about 4 Dinli DL801 (quad Bike) tests, 2.1% of the model's MOT record.
- "Decelerometer (sp) efficiency less than 50% of the required value" (Major) — noted on about 3 Dinli DL801 (quad Bike) tests, 1.6% of the model's MOT record.
- "Brake pads less than 1.5 mm thick" (Major) — noted on about 3 Dinli DL801 (quad Bike) tests, 1.6% of the model's MOT record.
- "Horn not working" (Major) — noted on about 2 Dinli DL801 (quad Bike) tests, 1.0% of the model's MOT record.
- "Position lamp not working" (Major) — noted on about 2 Dinli DL801 (quad Bike) tests, 1.0% of the model's MOT record.
Best and Worst Dinli DL801 (quad Bike) Model Years by Pass Rate
The strongest Dinli DL801 (quad Bike) model year on record is 2010 (91.7% across 60 tests), and the weakest is 2008 (84.0%). The gap between them is 7.7 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.
Dinli DL801 (quad Bike) reliability is improving in the DVSA data — the pass rate moves about 3.9 points a year across the most recent model years shown above.
| Year | Tests | Pass rate |
|---|---|---|
| 2010 DL801 (quad Bike) | 60 | 91.7% |
| 2009 DL801 (quad Bike) | 58 | 91.4% |
| 2008 DL801 (quad Bike) | 75 | 84.0% |
Newest model year first. Only years with at least 50 recorded tests are listed.
Pre-MOT Inspection Checklist for Dinli DL801 (quad Bike) Owners
These checks follow this Dinli DL801 (quad Bike)'s own most-recorded failure strings, starting with what a tester is most likely to flag on a Dinli DL801 (quad Bike).
-
the suspension joints — “ball joint excessively worn”
With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.
-
the brakes — “brake pads less than 1.5 mm thick”
Look through the spokes of each wheel at the pad — less than 3mm of friction material, or a lip on the disc edge, is the usual failure. Check the handbrake holds on a slope with a few clicks, not at the top of its travel.
-
the horn — “horn not working”
Press it. That is the whole check, and a surprising number of cars fail on it.
Derived from the DVSA failure strings testers recorded for the Dinli DL801 (quad Bike). A check that finds nothing means the item is likely fine, not that the test is guaranteed.
Frequently Asked Questions: Dinli DL801 (quad Bike) MOT & Reliability
What is the Dinli DL801 (quad Bike) MOT pass rate?
88.6% of the 193 recorded Dinli DL801 (quad Bike) MOT tests ended in a pass, +7.6 percentage points above the national average. 87.7% of those passed on the first attempt.
Which Dinli DL801 (quad Bike) model years pass the MOT most often?
2010 is the strongest Dinli DL801 (quad Bike) year on record at 91.7%, while 2008 is the weakest at 84.0%. The year-by-year table below lists every model year with at least 50 recorded tests.
What are the most common Dinli DL801 (quad Bike) MOT failures?
The most recorded Dinli DL801 (quad Bike) failures are "Ball joint excessively worn" and "Track rod end ball joint has excessive play" — together around 5% of tests, mostly in the Suspension section.