Mini
Cooper Auto
2,612 MOT tests analysed. lands in the middle of the pack — here's where Cooper Autos pass, fail, and end up on the retest sheet.
That's 1.2 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
78.8%
Pass-after-fix
7.6%
Fail
13.1%
Avg miles
55,144
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
The picture
Cooper Auto: middle-of-the-pack on first-time pass
Across 1,689 MOT tests, the Cooper Auto returns 79.3% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a number-plate lamp out. Windscreen damage and tyre tread under the limit round out the top three. Average tested mileage sits at 50,637, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
Group 18–30
Around the UK fleet average for insurance cost. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
18–30
out of 50
Top ten reasons for rejection.
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- 01
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
98 occurrences · 3.8% of tests
- 02
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
65 occurrences · 2.5% of tests
- 03
Stop lamp with a multiple light source up to 1/2 not functioning
50 occurrences · 1.9% of tests
- 04
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
39 occurrences · 1.5% of tests
- 05
Tyre tread depth not in accordance with the requirements
36 occurrences · 1.4% of tests
- 06
Wiper blade missing or obviously not clearing the windscreen
32 occurrences · 1.2% of tests
- 07
A tyre seriously damaged
31 occurrences · 1.2% of tests
- 08
Wiper blade defective
27 occurrences · 1.0% of tests
- 09
A tyre cords visible or damaged
27 occurrences · 1.0% of tests
- 10
Engine MIL illuminated indicating a malfunction
26 occurrences · 1.0% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 3 failures
£76–£165
If every one of this Cooper Auto's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
H7 / W21W bulb pack
A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.
Search Amazon UK
Item 02 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
My Motor World · affiliate
Parts & supplies for this fix
Affiliate links — small commission, no extra cost to you.
Draper
Draper Air Mini Oiler
£16.49
View at My Motor World →
My Motor World
My Mini Mike Air Freshener
£5.49
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Hycote
Hycote MINI Chilli Red Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Hycote
Hycote MINI Cosmic Blue Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Click Mechanic · affiliate
Book a mobile mechanic
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Mobile mechanic · UK-wide
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Owner reports · Honest John
What owners actually report.
Verbatim faults logged by owners on honestjohn.co.uk over recent years. We didn't summarise — these are the words people typed in.
What's good
17-inch wheels with Sport suspension destroy both ride and road feel, air conditioning wasn't standard on models before January 2009.
Recent owner-reported faults
- 20 Dec 2016
Porous cylinder head reported on 2008 MINI Cooper at 57,000 miles. Car has cost £3,000 in repairs over past 3 years. MINI specialist said never saw the condition before and that car needs a new engine. BMW MINI dealer to conduct diagnostic tests for a manufacturing fault.
- 18 Oct 2016
Yellow engine EML light came on in 59k mile R56 MINI Cooper S. Garage advised that it needs a new timing chain (which has "jumped a tooth") and a few other parts. Estimated cost £1,900, of which parts are about £1,500, but apparently the replacement parts would not develop the same problem later (ie, the parts have been modified to eliminate (or reduce) this problem).
- 11 Aug 2016
Report of 17,400 mile 2012 MINI Cooper auto with Pepper pack perpetually stalling and losing power to steering and brakes. Taken to MINI dealer which has had the car for 12 days and cannot find the problem. (Begs the question why not. See above.)
- 24 Jul 2016
65,000 mile 2009 R57 MINI convertible automatic reported to be using a litre of oil every 1,500 miles.
- 20 May 2016
As directly above (9-5-2016), engine warning light recently came on in 25k mile 2011 MINI Cooper. Fault was traced to a failed solenoid in the sump, resulting in oil tracking back up the wiring to the engine management system, all of which had to be replaced. MINI and the local MINI dealership dealt with the situation very well. MINI stood the cost of the new EMU, and the dealer significantly reduced his hourly rate. Instead of a bill of £1,800, the reader paid £526. The dealer told him that it was a rare, but not unknown problem. Somewhat friendlier dealer than 9-5-2016.
- 9 May 2016
Starting problem on December 2010 MINI Cooper S Cabriolet traced to failed oil seal on a solenoid that allowed oil to track along the wiring harness and into the engine management system, both of which had to be replaced, along with re-programming. BMW dealer response was no chance of a contribution to repair costs on a car of that age. Owner opted to have it repaired at local independent MINI specialist. This cost £2,525.
- 9 Jan 2016
Timing chain failed on used 2009 MINI Cooper S bought 3 months previously.
- 16 Nov 2015
Rear brake discs of 3 year old 30,000 mile MINI Cooper corroded and MINI lease demanded they were replaced by lessee before returning the car.
- 3 Aug 2015
Strange case of 3 year old MINI Cooper S failing to start after a recent franchised service. Local mechanic found that CV joint had detached from driveshaft.
- 21 Jul 2015
Number of problems reported with Cooper S. First, a timing chain failure (often the result of too infrequent oil changes). MINI provided goodwill. Then a coolant leak from a failed header tank (£600), and now another coolant leak at the seal with the oil filter for which the dealer is asking another £600. This could be connected with the electric pump that circulates coolant through the turbo and which was the subject of an NHTSA recall in the USA.
- 11 Jul 2015
Report of peeling and blistering of clearcoat lacquer on Chilli Red MINI Cooper S.
- 29 Sep 2014
Another yellow engine light showing on a 2007 MINI Cooper S. Suspect oil/timing chain problems.
Source: honestjohn.co.uk · 30 reports indexed, top 12 shown
Buying or keeping a Cooper Auto?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Cooper Auto and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.