330ci misbehaving. Advice required
Discussion
Went for a drive in my 330ci today and a warning light came on the dash. It was the yellow engine shaped one with no text (as opposed to the one that says EML). At the same time it went 'juddery' and I lost any sort of acceleration. I pulled in to decide what to do about it. Switched it back on 2 minutes later and the light was gone and the car felt perfect again. I drove it straight home without issue.
Any ideas what this might be? I'm hoping not some sort of imminent engine failure!! I'm leaning towards it being a sensor of some description as if the engine was knackered, turning it off and back on would not have fixed it.
Any help would be much appreciated.
Any ideas what this might be? I'm hoping not some sort of imminent engine failure!! I'm leaning towards it being a sensor of some description as if the engine was knackered, turning it off and back on would not have fixed it.
Any help would be much appreciated.
saleen836 said:
Paul, I see your in Wiltshire same as myself (Warminster) I have a code reader that might tell you what the problem is?! my code reader works on petrol cars 2001 onwards. I'm home all day tomorrow if the offer is any use?!
That would be awesome. I'm near Pewsey / Marloborough so I'm quite far out. My worry would be driving 45 mins with a potential engine issue. I will have a think about it and see if anyone else has an idea about what it might be. It did go pretty juddery / sluggish when the problem occurred which could be a problem in fast traffic on a busy road.I do really appreciate the offer.
Any sort of misfire could cause this - the judderiness and limited performance are a result of a misfire triggering the limp mode. Hopefully it'll be a coil, cam sensor or MAF but you could spend ages tracking it down.
Same thing happened on my old Alpina B3S - the code said it was a misfire on cyl 6 but three attempts at sorting it out came to nought, so I rejected it. That was with a main dealer, under warranty; my advice would be go to a specialist instead!
Same thing happened on my old Alpina B3S - the code said it was a misfire on cyl 6 but three attempts at sorting it out came to nought, so I rejected it. That was with a main dealer, under warranty; my advice would be go to a specialist instead!
PaulB81 said:
Thats very generous. Are you ever in the Pewsey/Marlborough area? Im just not confident driving it too far when its misbehaving like this.
I'm currently working on the south coast but Friday evening or preferably Saturday day, I can give my Mustang a run out and help out a fellow PH'erThe local garage have run their diagnostic over it.
Cylinder 1 is misfiring intermittently.
They dont know the cause. I asked him to test the coil packs with an ohmeter but he said they dont do that sort of thing. He said they were just going to get a price for a new coil pack and try it.
If it is an intermittent misfire on one cyclinder (same one every time) is it more than likely a coil pack / plug / lead?
Cylinder 1 is misfiring intermittently.
They dont know the cause. I asked him to test the coil packs with an ohmeter but he said they dont do that sort of thing. He said they were just going to get a price for a new coil pack and try it.
If it is an intermittent misfire on one cyclinder (same one every time) is it more than likely a coil pack / plug / lead?
PaulB81 said:
If it is an intermittent misfire on one cyclinder (same one every time) is it more than likely a coil pack / plug / lead?
I mentioned my Alpina earlier - same thing (but on cyl 6), and they couldn't fix it after 3 weeks of trying out various things. I'd replace the coil pack anyway for the £20 or so it costs, but it may not be the answer.PaulB81 said:
The local garage have run their diagnostic over it.
Cylinder 1 is misfiring intermittently.
They dont know the cause. I asked him to test the coil packs with an ohmeter but he said they dont do that sort of thing. He said they were just going to get a price for a new coil pack and try it.
If it is an intermittent misfire on one cyclinder (same one every time) is it more than likely a coil pack / plug / lead?
Ok but why have they not swapped the coil pack on no 1 to no 2 and see if the misfire goes with it? Hardly rocket science is it?Cylinder 1 is misfiring intermittently.
They dont know the cause. I asked him to test the coil packs with an ohmeter but he said they dont do that sort of thing. He said they were just going to get a price for a new coil pack and try it.
If it is an intermittent misfire on one cyclinder (same one every time) is it more than likely a coil pack / plug / lead?
Im short on time so I just told them to go ahead and put a new coil pack in. He said if it doesnt fix it he will just send the part back and try the injector instead.
A bit frustrating but I dont have time to look at it myself and the BMW specialist I called doesnt seem to like answering their phone so I will stick with the local garage for now.
They say the coil pack should come in today or tomorrow at the latest. They are going to clear the fault on the car, put the new coil pack in, then do some testing to see if the misfire comes back. It was fairly regular they said when they tested it before so hopefully I will get a decent answer. I also bought a fault code reader so if they give it me back saying its fine, I can check it myself to make sure there isnt still and issue.
A bit frustrating but I dont have time to look at it myself and the BMW specialist I called doesnt seem to like answering their phone so I will stick with the local garage for now.
They say the coil pack should come in today or tomorrow at the latest. They are going to clear the fault on the car, put the new coil pack in, then do some testing to see if the misfire comes back. It was fairly regular they said when they tested it before so hopefully I will get a decent answer. I also bought a fault code reader so if they give it me back saying its fine, I can check it myself to make sure there isnt still and issue.
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