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      05-01-2013, 11:17 PM   #23
drjekl
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For me personally my car is mainly OK at idle, occasionally it has a split second hiccup where it feels like it is going to stall and then regathers itself just as quick.

Looking online it appears the N54 isn't a smooth idling type of engine, but I have never had another N54 to compare it to really...

The main issue I have always had is in say 4th gear doing 60 km/h it is smooth and coasting along it feels like its 'hunting' then if you give the accelerator a prod it smooths itself out.

In the past month or so it has gotten progressively worse to the point that occasionally when I go WOT and goes straight into limp.
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      05-03-2013, 10:15 AM   #24
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If you give me the VIN, I might be able to find out exactly which injector has been replaced.

I don't think we ever did put any sticker on the car for injector campaign.

You will be surprise what the dealer can do for warranty issue sometimes. They can actually ask head office for good will even if the car is out of warranty. Just try to complaint that it is been having the same problem for a while.
And they don't generally do bare minimum because it makes no difference to a dealership. They actually want to replace more stuff on it if they can fault it, as warranty is paid by head office, as long as the dealer can justify the fault.

I think it's just a bit hard these days to find a good experience smart mechanic in the dealership networks.


Quote:
Originally Posted by drjekl View Post
I spoke to my local dealer this morning (whom were actually quite friendly and helpful) and looking up my details there is no outstanding campaign on my vehicle.

I will have to have a look at my car, as after reading a SIB for the injectors I thought I had once seen a little blue sticker in the engine bay firewall which maybe an injector campaign completed already.

Unfortunately I am only just out of warranty a few months ago also when this trouble started but tbh I would probably prefer to get this work done through an independent bmw specialist like advan as generally I have found with warranty repairs they generally band aid the repairs trying to do the bare minimum to mask the issue rather then diagnose the root cause and replace all the required parts.
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      05-03-2013, 07:20 PM   #25
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Quote:
Originally Posted by Jin.ActiveMotorwerke View Post

I think it's just a bit hard these days to find a good experience smart mechanic in the dealership networks.
Agree. Well said Jin.
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      11-18-2013, 09:31 PM   #26
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What ever happened with this? I'm having misfire and o2 sensor codes thrown. Anyone have a part number for the o2 sensors. Did a log of the misfire. Seeing what terry thinks of it. Talked to dealer and they said they would do good will on the injectors if they are actually bad.
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      11-19-2013, 12:22 AM   #27
drjekl
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Quote:
Originally Posted by MuNkY6913 View Post
What ever happened with this? I'm having misfire and o2 sensor codes thrown. Anyone have a part number for the o2 sensors. Did a log of the misfire. Seeing what terry thinks of it. Talked to dealer and they said they would do good will on the injectors if they are actually bad.
I put in new coils it helped a lot but was still misfiring. I then changed the 6 plugs even though they were only a few months old (and looked fine on removal) and it was like a new car!

Then a few weeks later it started getting worse again, so i changed both 02 sensors and vanos solenoids and bam it was like a totally different car so much nicer to drive at low speeds being a lot more tractable.

So if you havent tried new coils and plugs do that first, then try the o2 sensors (bosch part #17098 x 2. The bank 2 sensor normally comes with a 200mm shorter wire, but the excess wire left over from using a front bank sensor in the rear bank is easily coiled up neatly)
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      11-22-2013, 05:00 PM   #28
135BANDIT
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Quote:
Originally Posted by drjekl View Post
I spoke to my local dealer this morning (whom were actually quite friendly and helpful) and looking up my details there is no outstanding campaign on my vehicle.

I will have to have a look at my car, as after reading a SIB for the injectors I thought I had once seen a little blue sticker in the engine bay firewall which maybe an injector campaign completed already.
My dealer said the same thing but after months of frustrating rough idle and stumbling and after couple of email exchanges with BMWA & consumer affairs, i now have 6 new injectors and a HPFP - my car was 2 months out of warranty , but had only 26k on the clock. It runs like NEW now and i haven't had any more issues.

JD
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      11-22-2013, 05:15 PM   #29
Dackelone
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Here are two SIB's that might be helpful to you guys. Also in the second one is the round sticker shown that should be on the driver's door jam(not under the hood).
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      11-24-2013, 07:40 PM   #30
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Quote:
Originally Posted by Dackelone View Post
Here are two SIB's that might be helpful to you guys. Also in the second one is the round sticker shown that should be on the driver's door jam(not under the hood).
In my experience they will just say these don't apply to the Australia market.
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      01-29-2014, 01:46 PM   #31
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Sorry to bring up an old thread but im having the same issue as code 2c9c is thrown up. I am on limp mode and not having any boost at all. The error codes only started playing up after i serviced the car with the dealer yesterday. Im suspecting its the o2sensor but i dont feel misfiring ? will this happen if it's the injectors?
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      01-29-2014, 04:32 PM   #32
Simonnn
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Quote:
Originally Posted by kaitan View Post
Sorry to bring up an old thread but im having the same issue as code 2c9c is thrown up. I am on limp mode and not having any boost at all. The error codes only started playing up a before serviced the car with the dealer yesterday. Im suspecting its the o2sensor but i dont feel misfiring ? will this happen if it's the injectors?
I had this issue when I forgot to plug one of the sensors back in after I installed my charge pipe (might have been o2 sensor). I'd double check just to make sure none of the sensor connectors are loose first!
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      05-30-2014, 07:43 AM   #33
Nkryptd1
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Quote:
Originally Posted by kaitan View Post
Sorry to bring up an old thread but im having the same issue as code 2c9c is thrown up. I am on limp mode and not having any boost at all. The error codes only started playing up after i serviced the car with the dealer yesterday. Im suspecting its the o2sensor but i dont feel misfiring ? will this happen if it's the injectors?
Hey, I know this is an old thread but I just had this happen to me. I took my 135 to the dealership to replace the water pump and perform battery cable install. Upon picking the car up I made it 8 blocks before it started idling like a tractor, to the point of stalling. Codes thrown included the ops misfire, vanos and others. Needless to say it's back at the stealership again.

Did you ever resolve the 2c9c issue?
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      05-30-2014, 07:50 AM   #34
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Hey guys it might be worthwhile checking out all of your vacuum lines. I did some research and it's actually a very common problem on these cars, especially once they're a a few years old. Inspect them closely for any leaks, especially the 2 lines around the oil filter housing as they seem to deteriorate the fastest. Sometimes these issues can be something as small as a boost leak. If it does need replacing, get some 3.5mm silicone hose and swap it out. GL.
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      05-31-2014, 07:24 AM   #35
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Quote:
Originally Posted by Nkryptd1 View Post
Hey, I know this is an old thread but I just had this happen to me. I took my 135 to the dealership to replace the water pump and perform battery cable install. Upon picking the car up I made it 8 blocks before it started idling like a tractor, to the point of stalling. Codes thrown included the ops misfire, vanos and others. Needless to say it's back at the stealership again.

Did you ever resolve the 2c9c issue?
yes it has been resolved. It's 2 vacuum hose that gave way. so it was replaced and it's all good after that.
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      05-31-2014, 07:49 AM   #36
BMW86
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Quote:
Originally Posted by BMW86 View Post
Hey guys it might be worthwhile checking out all of your vacuum lines. I did some research and it's actually a very common problem on these cars, especially once they're a a few years old. Inspect them closely for any leaks, especially the 2 lines around the oil filter housing as they seem to deteriorate the fastest. Sometimes these issues can be something as small as a boost leak. If it does need replacing, get some 3.5mm silicone hose and swap it out. GL.
Quote:
Originally Posted by kaitan View Post
yes it has been resolved. It's 2 vacuum hose that gave way. so it was replaced and it's all good after that.
Seems to be a very common issue. Glad I found mine. Car runs so much better now
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