Just another day! *FAULT RETURNS FINAL UPDATE*

Bummer to have a mechanical problem that just hides there for weeks/months before anyone can find the cause. Hope they get it sorted soon and the Z is back smiling (and you) with the warmer weather.

Have you researched Google/Youtube with key words in hope to come accross a similar situation?
 
powerontap said:
Bummer to have a mechanical problem that just hides there for weeks/months before anyone can find the cause. Hope they get it sorted soon and the Z is back smiling (and you) with the warmer weather.

Have you researched Google/Youtube with key words in hope to come accross a similar situation?
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Yeah I have had a search but nothing quite similar powerontap. On a positive note though, the fault is appearing more often once the engine is warm so very happy at least that the mechanics will be able to experience it. Am very happy that the car is covered by AUC. :D
 
LATEST UPDATE. I dropped my zed into the dealers yesterday morning for them to have another look at the problem, and have my fingers crossed as this time BMW are on the case as well. Had an update tonight from the dealer to tell me that BMW think the problem could be down to poor fuel pressure and have been running tests. Not sure what they mean by poor fuel pressure though. Hopefully tomorrow they might be a step closer to finding the problem, or maybe not depending on the test results. On a plus note I was glad that I managed to capture the fault on video as this seems to have helped them. I will post another update tomorrow when I get the zed back. Currently running around in a BMW 1 series 1.6SE courtesy car which is not good as the weekend is coming along with possibly of not having my roadster along with the promise of some sunshine, now I know what it must feel like to be a coupe owner. :poke:
 
Had a call from dealer this afternoon to give me an update. It appears that the fuel pressure tests that have been run showed a couple of problems, one being a loss of fuel pressure when idling. Also noted was a significant drop in fuel pressure if engine was restarted after 10 minutes, I was told that the fuel pressure in the delivery line should be retained over an extended period which it wasn’t. BMW have also agreed that the fuel pump, fuel pressure regulator and fuel filter are to be replaced under warranty.

Downside is one of the parts required is in Germany and can take up to 10 days to arrive. :headbang: So in the meantime I will be picking up zed tomorrow but will need to take it back once all the parts have arrived. The dealer said they would want it for 2 days as it takes 4 hours to strip down the fuel system before they start to fit the parts, not sure if this is correct or not, however all this will be covered under warranty, so am very happy if this is going to finally fix it :D
 
Fantastic news as that fault has been a bloody nightmare for you mate! Hopefully that will be it sorted out once the parts are fitted, just in time for the good weather and some hooning :driving: :driving: :thumbsup: :D
 
Thanks Brian, it's been a real PITA for the last 3 months and had started to loose confidence in my zed. I had even started looking at some E89's and contemplated trading it in which would be a shame as my zed only has 24K on the clock.
 
jimbo1958 said:
Hope this will be the end of your problems Swiftly.


Sent from my iPad using Tapatalk HD
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Thanks mate, hopefully in about 2 weeks time the zed will be back to her old self and ready for the summer :D :thumbsup:
 
Should have updated this thread last week as the zed was in at the dealers for the parts to be fitted. Picked the car up on the 27th and up to now the car has behaved itself, so I was a happy chap :D

To recap, zed had 24k on clock when fault first appeared and it is approximately 4 months since fault first appeared.
The zeds been back and forth to dealers 6 times resulting in a total of 13 days off the road.
So far replaced, the Inlet Manifold and Rocker Cover Gaskets, Fuel Pump, Fuel Pressure Regulator, Fuel Pressure Sensor and Fuel Filter, luckily all covered by AUC Warranty.

Tonight whilst driving home the fault returned :cry: :headbang: :headbang: :headbang: As you can imaging my patience is wearing very thin, and I am getting mightily pi**ed off to say the least!

[youtube]C9ah3V34IJ4[/youtube]

The dealers will be having a look at the fault whilst the zed is booked in a weeks time to have a broken rear spring replaced :headbang: :headbang:

I am seriously considering whether I should trade the zed and look for something else, as I am slowly loosing confidence in it. :(
 
You are having a pi$$er for sure Swiftly but bear in mind that Z's for the most part are pretty reliable & the majority of problem's are usually routine & a relative easy fix .
My own mind would be to move it on & replace with a similar but better Z . that way you will feel like its a move forward :wink:

Oh & pick something that's covered a few miles next time :P proven capabilities :thumbsup:
 
Feel the frustration! Back to basics, too lean = air getting in or fuel starvation. I've had the same symptoms on a bike and a car on the bike it was scale and crud blocking the fuel outlet in the tank, the car a waxed paper sweet wrapper of all things - in both cases they ran fine for a while then would lose fuel pressure intermittently.

"Ah, crap in the tank sir"
"Really? I can't see how that's going to help"
:exitright:
 
Ewazix said:
Feel the frustration! Back to basics, too lean = air getting in or fuel starvation. I've had the same symptoms on a bike and a car on the bike it was scale and crud blocking the fuel outlet in the tank, the car a waxed paper sweet wrapper of all things - in both cases they ran fine for a while then would lose fuel pressure intermittently.

"Ah, crap in the tank sir"
"Really? I can't see how that's going to help"
:exitright:
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Well they have checked all the hoses etc for any air leaks and said the inlet manifold and rocker cover gaskets had to be changed as they detected a small air leak.

The first video I posted back in March was sent to BMW, and they instructed the dealer to run a series of tests to check the fuel pressure. The tests showed that there was a slight loss of pressure when idling, but there was a significant drop in pressure after the zed had been stood for 20 mins, hence the reason they decided to replace the fuel pump, fuel regulator, fuel pressure sensor and fuel filter assuming one or all were the culprit.

There can't be much left to change now, so I am now wondering if the symptom could relate to a leaking injector/stuck open?

Really love my zed, but this is taking so long to fix that it is slowly driving me nuts :(
 
Christ you are bloody unlucky swiftly. As ewazix has said you have to go back to basics, too lean = air getting in or fuel starvation. Sounds like its a being a real pain to locate, but would appear from what you have said that the dealers are on the right lines. Perhaps they need to go back and double check the hoses. Not sure if leaking injectors or not is part of the problem, but someone should be able to advise you swiftly.

I wouldn't get rid of the zed just yet swiftly, I know you are pissed off but am sure a fix is just around the corner. Your zed looks to good to sell, hang in there is what I say :thumbsup:
 
BrianD said:
Christ you are bloody unlucky swiftly. As ewazix has said you have to go back to basics, too lean = air getting in or fuel starvation. Sounds like its a being a real pain to locate, but would appear from what you have said that the dealers are on the right lines. Perhaps they need to go back and double check the hoses. Not sure if leaking injectors or not is part of the problem, but someone should be able to advise you swiftly.

I wouldn't get rid of the zed just yet swiftly, I know you are pissed off but am sure a fix is just around the corner. Your zed looks to good to sell, hang in there is what I say :thumbsup:
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Thanks BrianD, the fault has just been going on for so long and still no fix in sight. Would agree with what both you and Ewazix have said, guess there can't be that many more parts left for the dealers to replace. Seems very much like trial and error fault finding, if in doubt replace the part. So the saga continues ........ :headbang:
 
Typical main dealer knackersacks. Partially trained clean overall wearing part swappers. Random part changes until they hit lucky instead of drawing on expert knowledge and properly troubleshooting the issue with a full logical diagnostic approach. Pleased you are covered by an AUC warranty but no wonder their overheads are so ridiculously high. :thumbsdown:
 
GreyZed said:
Typical main dealer knackersacks. Partially trained clean overall wearing part swappers. Random part changes until they hit lucky instead of drawing on expert knowledge and properly troubleshooting the issue with a full logical diagnostic approach. Pleased you are covered by an AUC warranty but no wonder their overheads are so ridiculously high. :thumbsdown:
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Well said GreyZed! That is also my experience of dealers in general. Some are worse than others, some are better but hardly any are really excellent though, we should all be demanding more for the money they have the cheek to charge for their hourly rate, instead what do we get, monkeys :thumbsdown:
 
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