08-31-2021, 04:19 AM | #1 |
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Hi all
Long time browser, never registered. This is always the go to forum I've found for technical support, and the dearth of information is absolutely astounding. In South Africa, Cape Town, have a 2013 pre-LCI F10 M5 in Alpine White (currently broken) and a 2009 E63 M6 in Silverstone Metallic (currently in storage). Awesome forum, look forward to partaking where I can. Morgan |
08-31-2021, 07:35 AM | #2 | |
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09-01-2021, 06:59 AM | #3 |
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Hi Ruben, thank you for the welcome and the compliments. The issue with the F10, where to begin haha. It's currently man down with a consistent DTM issue, I've been diagnosing for about two months now, finally think the culprit is a faulty secondary O2/lambda sensor (I'm running catless DPs on my car with a tune). But the error has been there since I did the DPs so thought nothing of it. Removed the fuel rail, swapped fuel pumps from bank 1 to bank 2, replaced a fuel pressure sensor, and today after a bit of research it looks like my faulty O2 sensor is the cause of my DTM issue (this after extensive fuel pump testing with ISTA). So with any luck it'll be rectified in the next day or two.
As for the E63, that's currently sitting in another city collecting dust. How sad! |
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09-02-2021, 01:53 AM | #5 |
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Thank you Alister, hopefully by the end of this week. Got a new O2 sensor yesterday, it's a Bosch universal O2 sensor that needs some sight modification. About a third the price of the BMW one. So keeping my fingers crossed that I have finally found the solution.
This is a great forum, the amount of information available is insane. |
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09-02-2021, 07:48 AM | #6 | |
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Hope that fixes your issue so you can get back to enjoying the car, good luck. |
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09-07-2021, 03:55 AM | #7 | |
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However, the O2 sensor didn't fix the issue. I've got a hard coded DTM now. All my tests on fuel pumps etc. seems to show my pumps are working fine. But, I suspect I have leaking valve cover gaskets. I removed my plugs this weekend to check the gaps and they were covered in oil on the cylinders 3,4,5 and 6. So after some research it seems that I need to replace those next. Waiting on the gasket arrivals from BMW and will be doing that in the next short while. |
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09-07-2021, 07:31 AM | #8 | |
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09-07-2021, 09:04 AM | #9 | |
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I am just amazed at how fast it all went downhill. This year alone I've done the plugs, the coils, the auxiliary water pump, the fuel pressure sensor, the O2 sensor, the turbo cooling lines, the intercooler boost pipes, it's never ending. |
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10-06-2021, 08:49 AM | #10 |
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So I thought I'd update, because now I am at a loss. The last post I was about to undertake the replacing of the VCGs. Well that's done. And what a terrible job it was too. After replacing the gaskets, reassembling etc., the car started first time no issues (after the fuel pumps had primed and what not). But the car is STILL misfiring. I replaced the coils (again) with OE Bosch units, still misfiring. The weirdest part of it all? Not a single error in ISTA+ or on Carly. Not ONE. So I am beginning to think the worst now, that the engine in this car may be done with. And if that's the case, there's going to be a lot of parts for sale soon.
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10-07-2021, 09:27 AM | #11 | |
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10-22-2021, 12:25 PM | #12 |
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So I got it running. After doing the valve cover gaskets, fuel pressure sensor, plugs, coils, fuel pump gaskets, new O2 sensor, new fuel injector decoupling elements and turbo gaskets on the air channel side it's running. Took me 4 months worth of work and diagnosing (doing a little here and there) but finally today after replacing the turbo gaskets she fired up, ran some diagnostics, had a discharging battery which made it a bit lumpy then took it for a drive and hey presto. Running smooth as silk now. Was really worried that the engine had blown but it seems that wasn't the case. Now just a steady break in period and I think it'll be right as rain.
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10-23-2021, 03:40 AM | #13 |
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Yeah the rocker cover gaskets replacements mean a lot of removal and time consuming work,with all the other things like might as well do the plugs and coils also on the way. When I think back to my classic TR6 that r/c gasket took under 10 minutes to change and plugs were a cinch lol
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10-24-2021, 07:36 AM | #14 | |
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10-24-2021, 01:39 PM | #15 | |
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10-26-2021, 07:27 AM | #17 | |
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