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Gearbox problem or something else?.

BMW forum 5 series car: E12, E28, E34, E39, E60, E61, F07, F10, F11

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Re: Gearbox problem or something else?.

Postby jasonh » Tue, 08 Jan 2013 20:06:07 UTC

On the injectors:

They can be extremely hard to remove - search youtube for some entertaining videos on the matter.
They have a code marked on them that needs to be programmed into the ECU, the injector adaptation values also need to be reset - not hard with the correct diagnostic tools.
You can thoroughly diagnose them using the BMW diagnostics before replacing any.
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Re: Gearbox problem or something else?.

Postby Beejay7 » Wed, 09 Jan 2013 15:23:27 UTC

Thank you Jason for your advice and kind offer. I may well take you up on it as soon as I've sorted the injector problem...

As the diagnostic identified injector 5 as the problem area can I assume it is only injector 5?....or is it like the dreaded Parking Sensor fault where you just get a failure and not a specific number of failed sensors?

Alan
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Re: Gearbox problem or something else?.

Postby jasonh » Wed, 09 Jan 2013 17:48:58 UTC

If the diagnostic says it's injector 5 then I'd go with injector 5; the diagnostics are pretty clear and specific. However I have seen injector cleaner fix a duff injector. Before you change any have a good look a the live diagnostic data and you can see how they're all performing. This can be done with INPA which is relatively easy to get running.

With the parking sensors the diagnostics will again pinpoint a failed sensor but the iDrive will just disable the whole system.

The problem is with BMW diagnostics is that sometimes a little bit of information in untrained hands can be a dangerous thing. I've seen a cracked exhaust manfold give errors regarding turbo boost pressure so the BMW Main Dealer was proposing a new turbo.
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Re: Gearbox problem or something else?.

Postby Beejay7 » Wed, 09 Jan 2013 19:24:52 UTC

Thanks

Reading around different Forums, most seem to suggest this product by Forte, :-

Forte Injector Cleaner

I also found this on their site which looks good for DPF's :-

DPF Cleaner

Any Comments on these products or other recommendations?.

Alan
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Re: Gearbox problem or something else?.

Postby Beejay7 » Fri, 03 May 2013 19:23:26 UTC

It is now over 4 months since I last commented on this thread.
The fault persisted and got considerably worse eventualy ending with the car going into limp mode......The car has been to two independants, neither of which could solve the problem and it ended up in the main dealers hands for yet another diagnostic check....They said the DPF was completley blocked and they couldn't get enough revs or temperature to get regen started. The only solution they came up with would be to fit a new DPF....at a cost of some £1200....
Neadless to say I looked round for another option, and found a local tuning "specialist" who offered DPF removal and recoding, so I took the car to the garage and next day, following a phone call, went to pick it up...I found the car was worse than ever giving "emission level" warnings, smelling very strongly of soot, belching out smoke and worse still....still running in limp mode!....something was seriously wrong.
The car had to be picked up by AA recovery and taken to the Main Dealers again!...
They phoned me up the next day to let me know that the DPF was still blocked however they did report that whoever had done the work had gutted the catalytic converter instead of the DPF!.....I rang the Specialist tuner to inform him of the situation and he apologised on behalf of his staff and immediatly offered to collect the car from the main dealer, pay the diagnostic bill, fit a new catalytic converter and gut the DPFand recode.
I picked the car up today and I am pleased to report the car is now fully sorted...running better than ever.....now I just need a new MOT, Car Tax, swirl flaps blanked, rear PDC sensor and a change of tyres from the run flats.....Does the expenditure never stop!.
Alan
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Re: Gearbox problem or something else?.

Postby gbcarmona » Sat, 04 May 2013 11:55:32 UTC

So, if you put the cruise control the regen doesn't happen? Bugger!
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