AtWhatMileage
Engine · 7 owner reports

Other engine problem on the 2003 MINI Cooper S

1 fire 1 of the 7 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.

Only 4 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.

Reports of this failure 7
With an odometer reading 4
Reports per 1,000 built 0.7 per 1,000
Filed below 36,000 miles 50%
Mention a crash, fire or injury 1
Typical repair $300–$4,000
What it means when it happens High
Rank among this year's problems 9th

When other engine problem gets reported

There are 7 reports of other engine problem on the 2003 MINI Cooper S, 4 with a mileage attached. That is too few to place the failure on the odometer with any confidence.

A part like this is normally expected to survive 95,000 miles. It is the 9th most-reported problem on this model year.

The whole distribution

Percentiles of the 4 odometer readings owners gave.
10th25thMedian 75th90th
— — 41,700 miles — —

Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.

What a percentile can and cannot tell you here

These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.

What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.

Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.

What happens, and what it costs

Of these reports, 1 a fire is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.

Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.

The same failure on other years

The same failure is reported on 8 model years of this car. It shows up earliest on the 2007, at a median of 35,000 miles, and latest on the 2011 at 80,000 miles.

By volume the 2007 carries the most reports, with 44; the 2003 has 7. A mode that appears across most years of a model is usually a design choice rather than a bad batch.

If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

"2003 mini cooper s automobile experiences a noticeable and significant stumble when engaging first gear and accelerating from a stopped position. The stumble is significant enough to cause a stall condition and results in unreliable throttle response. The problem is worse at higher RPM engagements, in hotter weather, and with the AC engaged. The stumble feels like a momentary loss of power and then shortly thereafter, power is returned to the wheels. The problem occurs on virtually every engagement but is considerably worse on the first engagement after the car has sat for several hours with the engine off. The problem is less severe when turning the car left or right while engaging first gear. This issue renders the throttle response unreliable and can stall the automobile at unexpected times. No crashes have occurred at this time but the potential for a rear-end collision due to a stall or a side impact collision due to stalling when crossing an intersection is present. Additional issues related to engine management and throttle response occur in the same automobile have occurred but these additional problems have been…

11,400 miles NHTSA complaint 431011 filed 2003-09-20

I had noticed that the power going up hills had been slowing down for sometime but as we were driving in town and lost it's number three cylinder, took it to shop and with several days of work found out I would be better off scrapping it than fixing it. Mechanic who deals with bmw said that he could put in a new engine but he sand that the issues that he has seen on this years cooper show it is just a money pit. He said, just scrap it and take your losses. The only thing is I bought it used and still owe over $3,000. On it. I have no car and can't afford to replace it and have two payments as I am disabled with a low income from injuries. I finally got my car of my dreams and it because my nightmare. Missing my mini. *tr

134,000 miles NHTSA complaint 1086376 filed 2014-07-14

8/13/2014- I was stopped at a stop sign in a mall parking lot and smoke started billowing out from under the right front side of the car and at the same time started coming through the vents into the cabin of the car. I tried to shut off the car, but it would not turn off. A bystander came running and opened the hood, smoke poured out, told me to call roadside assistance as he was opening hood and then told me to hang up and call 911 that my car was on fire. Flames were coming out of the engine area but there was too much smoke. The engine fan was still running. Another passerby had an commercial extinguisher and emptied it on my vehicle. The fire dept. Was pulling up as they were trying to push it aside, the car re-ignited and it took the fire department approx. 15 to make douse the fire without it re-igniting. All of these people looked my vehicle over and could find no reason for it to ignite. I purchased the car used about 4 weeks ago and have put about 3000 miles on it without any issues. My insurance company had it towed to a mechanic down the road and they are to contact me tomorrow to see if they can see why this occurred…

72,000 miles NHTSA complaint 1097689 filed 2014-08-14

Also reported on the 2003 MINI Cooper S

Other steering problem

52 reports median 87k

Power steering pump or fluid leak

49 reports median 81k

Other visibility problem

23 reports median 12k

Loss of power steering

18 reports median 78k

Windshield cracking

9 reports median 4k

Wiring harness or short circuit

8 reports median 49k

How far this goes

This page is kept out of search results because 7 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.

Complaints are voluntary, so 7 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.

Questions this page answers

At what mileage does other engine problem happen on the 2003 MINI Cooper S?

Across 4 owner reports that included an odometer reading, half were filed by 40,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is other engine problem on the 2003 MINI Cooper S?

7 reports have been filed with NHTSA, about 0.7 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.

What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed