I see its been a while since one of these were posted, so lets see what year MC/MCS you have, how many miles and what issues you've had.

I just got a 2010 MCS with 61k on it.

 

09 S, 57K, had my first issue just last week, a small coolant leak. It was the thermo housing and water pipe.

 

176,000. No serious problems. Then I decided to build a motor. Shouldn't have touched it.

 

2012 MCS, 75,400 miles.


CEL for a failing HPFP at 49,000 miles, replaced under warranty.


Temp sensor replaced per campaign at first MINI service ~15,000 miles, no issues caused.


Filters, fluids, brake pads, and tires otherwise. No issues.

 

Just posted a rant...
09' R56 S 77,000 miles


02 Sensor replaced
Maf Sensor replaced
Thermo Housing leaked and replaced
Air Bag Pass side lit all the time..prob needs new sensor
Brake light on! after changing pads..prob needs new sensor
Now either the secondary coolant pump to turbo is leaking
or its the power steering pump..still researching put losing coolant pass side under air box
Recall on the heat shield, cowl has melted..looks wonderful !!
Turbo line to turbo top leaking..awesome...yet another repair
all this within 47,000 miles...Issues!! Damn thing should be taken back to Mini USA for a full refund...oh! Wait maybe Wal-Mart will take it ! I still have the receipt...lol


Compared to my girls 09 Kia Optima 120,000 miles standard maintenance and shocks and struts replaced and still runs smooth..Really! Bought new with 17 miles

 

What modifications did you make and what were the negative results?

 

What modifications did you make and what were the resulting problems?

 

Just purchased a 2011 MCS MT with 68k. Got CEL P1030 One time, P0087 the one that comes up every time and got P306F after pushing it when P0087 came on. I'm about to replace everything major fuel system minus rail and injectors (dont think injectors go bad but if i have i will hope not) (HPFP, Fuel Filter Fuel Pump) and do all the maintenance (brakes/MT Fluid/Oil Filter Change, ect.

 

08' R56 S 60,000 miles

HPFP
Thermostat Housing
Valve Cover
Upper turbo oil line

 

'12 MCS, 45k miles

Exhaust side VANOS

 

08 mcs 74k.
Thermostat housing
Chain tensioner
Valve cover
Turbo oil line
Turbo inlet pipe
Melted scoop
I think that's all. The clutch is on its way out, I think.

 

There are two different engines in the R56's, N14 and in mid 2011 improved N18 engine. My 07 MCS 63,000 miles, still on original HPFP.

Timing chain replacement at 49,000.
Tensioner replaced 2 years later at 61,000.
Valve cover, plastic!
Thermostat housing, plastic!
Water pump, plastic!
Oil filter housing gasket.
Footwell module.

 

My wifes has 53K.

Coolant temp sensor
The oil pan sensor(had an oil leak)
Some kind of main electrical module that controls charging and interior lighting.
Battery
Passenger window visor.
1 parking lamp.
Both license plate lamps.

 

55k miles. No issues.

 

'13 hardtop justa. 11,000 miles. Not one single issue, not even a rattle.

 

2008 MCS - had ~68000 miles on it.
around 55k Replaced cracked Thermostat Housing myself,
around 49k warranty covered Chain Tensioner.
~ 60000 Turbo Oil Line was starting to get loose at the top.

2011 MCS - has ~32000 miles on it no issues yet.

 

The turbo oil line is supposed to be loose at the neck of the fitting/bang bolt on both ends, there's a rubber O-ring in there that allows movement so it doesn't snap in two when the engine jolts when upshifting hard.

It starts leaking when the rubber o-rings starts to disintegrate so unless it's squirting oil out it's fine.

 

And driving the Optima is like... well just shoot me.. If it's anything like my wife's Sportage SX, it goes, but that's all I can say about it.
Vague, floaty, unfun... Oh and her's has been in the shop for more repairs and recalls than I can count... The paint is peeling off the roof rack and Kia says it isn't a problem...


I'll take the MINI any day...

 

Only 25k 2009 MCS, no problems.

 

Not to change THE THREAD..BUT When the "o" ring goes bad you need to replace the line? or just the ring? well the "o" ring is pretty small so I'm guessing the whole line needs to be changed? Anyone How difficult the change?

 

I just want to get into a car and work with absolute minimal repairs within 45,000 miles...08' Optima 120,000 miles and my god so far less repairs than this damn Mini...only comparing the repairs...Paint who cares...if it runs with minimal repairs is all I want...BMW Ultimate driving Machine...I think Not!!

 

2007 Justa 86K
Thermostat housing (at 60K)

Recently replaced brake pads (1st)
On 2nd windshield
On 3rd set of tires
Still on original battery

Running great. Everything still works.
36.4mpg avg (spreadsheet)
48.5mph avg (OBC)

 

Sold my mother's R56S six speed at 85k miles, only issue was the tensioner backing out in a parking lot (very lucky it happened at idle), after which I torqued it correctly and it never budged. It needed a new thermostat and fuel pump, and more oil than most are used to (not me, air cooled 911 owner, ha), but it was dead reliable otherwise and returned 30+ mpg.

It did have the upper oil line leak, but the new owner didn't care and had already read about it. I want a non-N14 S as a daily, I miss that car.

 

2008 Non-s. 135000.

 

2013 Cooper Hatch S 28,000 miles no issues- Knock on wood!