2008 e93 325i sport issues/ e92 m3 for sale

2008 e93 325i sport issues/ e92 m3 for sale

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Discussion

dave_s13

13,814 posts

269 months

Thursday 21st March 2019
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I've got an e93 325i with the N53 3.0 engine as well. 52k miles.

Recently had it motd and serviced at BMW and they printed me out all the recall work done by BMW. Around 2011 it had all new injectors, coil packs and a HPFP. The history also shows it had another HPFP about 18months ago so that shows you how made of fking chocolate they can be. Anyway, my service was only an oil and cabin filter change so I did the plugs and air filter last weekend. Noticed the injectors are index 09, the more reliable ones are index 11. Also noticed a bit of oil on the plugs and they were pretty sooted up.

It was also occasionally starting up then dying immediately, bit it every so often. Hasn't done that since changing the plugs. Also it now runs apparently perfectly. No current codes stored when I checked with INPA as well.

So anyway, your car likely has had the injectors done via an old recall but they swapped out st injectors, for still st injectors, the index 11 ones weren't in existence at that point I assume

It's worth getting your own copy of inpa set up to help diagnose things. I'm hoping that now I've gone to the effort I won't need to use it any time soon.

dave_s13

13,814 posts

269 months

Thursday 21st March 2019
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Oh and I'm really tempted to get it remapped as it's apparently pretty easy to get it up to around 260+ bhp. That would make a big difference I reckom.

In D it's a bit too docile. In S is certainly makes a positive difference.

And my gearbox sump was leaking as well (noticed it a week after purchase...private sale though) cost £300 to get a new sump, mech sleeve etc.

Boot was leaking too...fixed that.

Apart from that, it's a great car.

Mr Tidy

22,330 posts

127 months

Thursday 21st March 2019
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That's probably the one upside of the N53 325i, as it's just a detuned 330i.

After reading about N53 issues, when I bought my E91 325i I only looked at N52s - but within 6 months I needed a new electric water pump anyway! Sometimes you just can't win. laugh

bmwmike

6,949 posts

108 months

Friday 22nd March 2019
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If fuel level makes a difference I'd be looking at LPFP which is in the tank.

Codes?

My n53 got me 39 and a bit mpg's on an airport run this week. Frankly for the speeds I was doing and the weight of the f10 I think that's incredible.


chan61922

Original Poster:

535 posts

62 months

Friday 22nd March 2019
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Cheers for input guys. I queried the recall work done with dealer and according to them everything has been done and is up to date. Coil pack, HPFP, blower heater resistor etc however there was no mention of injectors, obviously through my own research and forums such as this I know my vehicle does fall in the bracket for an injector recall but the dealer can not find this on his systems and after asking a technician my vehicle isn’t applicable, my car is 2008 ‘08’ plate so I’m almost certain it does, so I’m assuming I’ve still got the same injectors since 2008 (not updated index 11) . What is ipna by the way? What are the common symptoms of a failing HPFP? I didn’t even know there was a low pressure fuel pump in addition haha. I’m sure I’m not being paranoid the car definitely runs perfectly when low on fuel, I’ve never really paid any attention to this in the past as my cars faults where stored as intermittent so I just assumed sometimes it will run smoothly and other times it will run like a dog. Problem is without any fault codes I can’t really take it to dealer and claim under warranty. Another 3 months I’m hoping to get rid of her but I do want to make it tip top and Claim on warranty as much as I can, esp considering I’m paying 106 quid a month for it

chan61922

Original Poster:

535 posts

62 months

Friday 22nd March 2019
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Also isn’t the 250/260hp a lot out of our engines a lot of aggro, upgraded manifold etc, along with an ‘agressive’ map?

to3m

1,226 posts

170 months

Friday 22nd March 2019
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Mine had the low fuel pressure sensor replaced along with all the other injector-related stuff. The full parts list was: 6 x (injector, buffer, coil pack, spark plug), 1 x NOx sensor, 1 x low fuel pressure sensor.

It sounds like you've had all the other bits done, so maybe this could be the last thing remaining?

bmwmike

6,949 posts

108 months

Friday 22nd March 2019
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Codes...

chan61922

Original Poster:

535 posts

62 months

Friday 22nd March 2019
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Quite possibly, however if it doesn’t develop failing symptoms in error code form I can’t really take to dealer. I have a few decent bmw Indy’s nearby but don’t want to get roped in to any huge bills for a car i won’t be hanging onto for that long, had a good 4 1/2 years out of her and only in this past year has she started playing up on me, after she was sat for a long periods of times and not being driven as a daily

chan61922

Original Poster:

535 posts

62 months

Friday 22nd March 2019
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No codes present according to dealer, prior to visit had a few nox codes and ageing cat code. I’ll hopefully being seeing my mate who can scan it for me at some point next week just to double check

bmwmike

6,949 posts

108 months

Friday 22nd March 2019
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Hard to tell what rhe symptoms are from your description. Sounds like you want to part ex it anyway so I don't see why not just chop it in as is, save faffing around

dave_s13

13,814 posts

269 months

Friday 22nd March 2019
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I assume that if there's no outstanding recalls on the car using the MOT check site and BMW have checked as well then the chance of getting 6x free injectors is nil.

Mines an 08 plate too though so fek knows why mine got done and yours didn't?

bmwmike

6,949 posts

108 months

Friday 22nd March 2019
quotequote all
chan61922 said:
No codes present according to dealer, prior to visit had a few nox codes and ageing cat code. I’ll hopefully being seeing my mate who can scan it for me at some point next week just to double check
I think I've said this already but maybe somewhere else - bimmerprofs are/were offering remote free diagnostics. Drop them an email. Really knows his stuff. You won't find a better n53 diagnosis IMO. Certainly not from a dealer but I also find the likes of reddish don't know the n53 particularly well either.

dave_s13

13,814 posts

269 months

Friday 22nd March 2019
quotequote all
bmwmike said:
chan61922 said:
No codes present according to dealer, prior to visit had a few nox codes and ageing cat code. I’ll hopefully being seeing my mate who can scan it for me at some point next week just to double check
I think I've said this already but maybe somewhere else - bimmerprofs are/were offering remote free diagnostics. Drop them an email. Really knows his stuff. You won't find a better n53 diagnosis IMO. Certainly not from a dealer but I also find the likes of reddish don't know the n53 particularly well either.
That bimmerprofs thing sounds really good, but you need to able to give them lots of live data and getting all that sounds a bit tricky. It's deffo worth looking into though.

chan61922

Original Poster:

535 posts

62 months

Sunday 24th March 2019
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Thanks for replies guys, is bimmerprofs a different forum or another website? Still haven’t got round to scanning any codes, haven’t used the car much this weekend so it’s still not been refuelled so can’t confirm whether it’s driving like a dog after refuelling. I will however try a premium fuel this time round see what happens, doubt anything. Where low pressure fuel pumps also replaced through a recall? I’m assuming warranty would cover it, so if it was the culprit it’s just a case of getting the bugger to fail. As mentioned not worth worrying too much as I’ll hang on to the vehicle for another 3 months when my insurance expires for the year. I do really like the car, it’s only because it’s running like a dog I’m tempted to change it. For those that saw my original post on this topic, I’ve gone off the idea of the m3, Looking very much like a 140,golf r, 640d or 428/30/35 that’s another dilemma for another day though haha

Court_S

12,936 posts

177 months

Sunday 24th March 2019
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chan61922 said:
Thanks for replies guys, is bimmerprofs a different forum or another website? Still haven’t got round to scanning any codes, haven’t used the car much this weekend so it’s still not been refuelled so can’t confirm whether it’s driving like a dog after refuelling. I will however try a premium fuel this time round see what happens, doubt anything. Where low pressure fuel pumps also replaced through a recall? I’m assuming warranty would cover it, so if it was the culprit it’s just a case of getting the bugger to fail. As mentioned not worth worrying too much as I’ll hang on to the vehicle for another 3 months when my insurance expires for the year. I do really like the car, it’s only because it’s running like a dog I’m tempted to change it. For those that saw my original post on this topic, I’ve gone off the idea of the m3, Looking very much like a 140,golf r, 640d or 428/30/35 that’s another dilemma for another day though haha
If the 140 is on the list, if you move quick there are still really good discounts to be had on new cars. I have been told by multiple dealers though that the pot of money funding the discounts via deposit contributions ends this quarter. If you could trade the 330 in, you don’t need to worry about tracking down a problem on a car you wan to offload anyway.

helix402

7,861 posts

182 months

Sunday 24th March 2019
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No recall on low pressure fuel pumps.

Badgerboy

1,783 posts

192 months

Sunday 24th March 2019
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Any NoX codes will cause the car to switch to homegenous mode and overfuel. This then starts causing the injectors issues too.

If they have sorted the NoX issues, then your MPG will improve as the car will start running in stratified mode.

I had the same issue, but once the NoX was sorted the injectors had had it. Had the sensors and injectors done under warranty.

Eventually the NoX catalyst again warning popped up (Again, disables the stratified mode), so I just fitted a Noxem so I didn't upset the injectors again.

chan61922

Original Poster:

535 posts

62 months

Monday 25th March 2019
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Badger boy that made complete sense to me, I kind of get how it all works now-finally haha. As you mentioned the fuel economy as now improved, I’ve just 350 out of a tank (55litres) with 80% town driving the rest was only sort spells on motorway with average speed cams so not really gone above 60. I think the car does need a proper long motorway blast, Clear the pipes out and all. I’ve refulelled today and the old dogs returned with a vengeance :/ paying extra attention now, and besides running rougher I’ve also noticed the smoking of exhaust develops once refuelled. God knows! Nothing I can do until something actually fails. The 140i are going ridiculously cheap finance wise, I think it’s 399 deposit and 399 x 47 thereafter, very tempting. I did. Actually have a meeting with TRL’s left hand man the day I dropped my vehicle in but he got held up in traffic and was stuck on the m25-typical! I’d rather get shot of my current vehicle and throw in the remainder of cash to be honest, wouldn’t go brand new as tempting as it is. Looking at around the 20k mark (including current cars sale). Lovely motor besides the recent issues if anyone’s mums, sisiters, postman’s cat is after one... lol

chan61922

Original Poster:

535 posts

62 months

Thursday 25th April 2019
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Hi guys long time since I posted on this topic but I’ve recently put my 325 n53 up for sale and I’ve had someone leave a deposit on it and hoping to collect in a few days- great! However the n53 strikes back and wants to go out with a bang, grrrr!! So the nox sensor was replaced under warranty a month or 2 back, the cars been okayish since, returning better mpg etc over the weekend I went on a bit of a run, only 30 or so miles each way but still the longest run I’ve been on since nox was replaced, quite a lot of stop starting due to motorway traffic on the m25 and average speed cams etc so not a perfect run. Anyhow 2 days later I noticed when the buyer came to view the car that it’s struggled to turn over ( was cold and left overnight) I thought nothing of it and just thought he just didn’t hold the brake down properly or press the start button correctly. So fast forward the car did the same thing yesterday morning, pressed the brake pedal and start button and it took a good few seconds to start, sounded really unhealthy like it wanted to konk out and then started, really worried as it’s running like crap again and definitely lacking umphhh. So annoying the cars ready to go and it’s doing this on me frown I would feel really bad selling it on to someone with problems, any suggestions? Car is under warranty with bmw but knowing them I’ll be waiting a good few weeks to get booked in which is useless right now as I want to sell. It’s annoying I’m the cars engine is solid it’s just all the crap associated around it that lets the car down. Annoyed! Any suggestions much appreciated, have 3 viewings of potential new cars this week myself and if this sale don’t fall through it’s not going to happen. Cheers