2nd Gen R56 Cooper S Most liked posts in thread: Sputtering

Sputtering is only the start !!

Same exact issues was how mine started .. Back firing, sputtering ... Jumping kicking while running then slow acceleration ... $1200 later I needed a fuel pump replaced on my new 2011 s cooper ! To make matters worse I was just over my warranty 50,012 ! I googled this issue and apparently this isn't a rare find ... However in the past model they extended the warranty ... How can they continue to sell cars with issues they are aware of ! It's so wrong ! Anyone know how to fight to get the warranty extended on a faulty engine part ?

 

Btw 2007-09 the High power fuel pumps are still under warranty for 10 years or 120,000 miles

 

I guess it has finally paid off that I keep all paper work involving my MINI. The extended warranty for the high-pressure fuel pump is 10 years or 120,000 miles from the original in-service date. On N14 turbocharged engines.

Anyway, I had my car at the dealer on 12/14/12. They replaced this for free. Now I'm not sure if they did the labor for free as I was already in there for other work. (I wouldn't think the dealer would just do labor for no cost.)

I'm also not sure if they covered this work because they pulled a fault code. From reading other threads it seems like dealers are like a box of chocolates. You never know what you're going to get.

 

Deleting your cat is a pain in the butt if you want to sell it or get it inspected. You can add an O2 simulator, but any inspector worth his salt will see immediately (and smell) that you don't have a catalytic converter anymore. And if you want to sell the car, you're going to tell the buyer that you've pushed this expense off onto him or her.

Replacing your cat is simply expensive. That's it. So it comes down to which is the lesser of two evils. If you live in a state where inspections are more of a formality, go for it. But it's not a 30-year old car, and there's a certain expectation that your car will have a catalytic converter. So unfortunately I would recommend ponying up for a new cat. And you can do a half assed job and have an exhaust shop weld in a generic cat, but it's always going to be butt-ugly.

 

I've used Seafoam for a topside valve cleaning and later half a can in the gas tank. noticed an improvement in idle.

 

Ummmm.....no they don't. Especially only after a few yrs. There is a reason it stopped working, find out why. With the finicky MINI ecu, I would just get a new cat installed under warranty. Why mess with trying to get it to work w/o one?

 

The cat is covered under the 10yr emissions warranty.

 

Even if you go catless, it'd be nice to have a brand new catalytic converter in a box, for if you ever decide to sell your car. Especially if you can get it for free.

Dave

 

What sensor?

 

The second generation MINI has two O2 sensors they each have different part numbers.

The first generation MINI has a single O2 sensor with a different part number from the two in the second generation MINI.

So, I'd say that they are not interchangeable.

You can check for yourself at the Real OEM website.

RealOEM.com   Online BMW Parts Catalog

Dave