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2007 BMW 335i, 214k, 7500 OCI T6 5-40 #5318996 01/10/20 06:28 PM
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antonmnster Offline OP
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This interval began with a run to Detroit and back, but has been otherwise almost exclusively short trips (2-4 miles) at some cold temps (down to 0F). Lots of idling, average speed of maybe 20 mph. Gets just warm enough to make some nice heat, then shut down. Every couple of months it gets a road trip of 150-300 miles. It nearly killed me to leave it in for 7450 miles, but it seems pretty ok with it.

For nearly 215k on an n54 I'm pretty happy. Only issue that might be connected to the fuel is that this car, since the last uoa, really likes to start rich. Something is causing this engine to crank just dumping fuel, but is perfectly fine once it's running. I have not figured it out. It's like starting a warm engine with the choke on.

Since it's January, the T6 came out and PP 5-30 went in.

Attached PDF document
07 335I-200101.pdf (18.08 KB, 37 downloads)

2007 BMW 335i n54 210,000 miles, lubricated by whatever is on sale
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319053 01/10/20 07:14 PM
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Charlie2015 Offline
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For your privacy, you need to black out your personal info.


1998 Honda Accord EX 2.3L Auto (Sold) 214k mi
2009 Scion tC Manual (Daily Driver) 170k mi - Valvoline Maxlife 0w20
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319056 01/10/20 07:17 PM
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Audios Offline
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Have the fuel injectors been changed to the newest revision?


2002 VW Golf TDI-T5 10/30
2007 Mercedes GL320 CDI-T6 5/40
2005 BMW M3 BMW-Twin Power 10/60
2003 BMW M5-M1 15/50
1998 BMW M3/4/5-M1 10/40
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319204 01/10/20 10:57 PM
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rubberchicken Offline
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I understand that BMW's and Mini's tend to chew up coils faster than average. You would probably get a misfire code though. Shop around as coil prices can vary a great deal.

Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: rubberchicken] #5319244 01/11/20 12:46 AM
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edyvw Offline
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Originally Posted by rubberchicken
I understand that BMW's and Mini's tend to chew up coils faster than average. You would probably get a misfire code though. Shop around as coil prices can vary a great deal.

They do. They should all be changed at 60k.
Now, N54 went through several revisions of injectors too. Good question is posted: does this car has latest revision of injectors?


11' BMW 328i xDrive 6MT (BMW TPT 5W30+OE filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319253 01/11/20 01:16 AM
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dave1251 Offline
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Originally Posted by antonmnster
This interval began with a run to Detroit and back, but has been otherwise almost exclusively short trips (2-4 miles) at some cold temps (down to 0F). Lots of idling, average speed of maybe 20 mph. Gets just warm enough to make some nice heat, then shut down. Every couple of months it gets a road trip of 150-300 miles. It nearly killed me to leave it in for 7450 miles, but it seems pretty ok with it.

For nearly 215k on an n54 I'm pretty happy. Only issue that might be connected to the fuel is that this car, since the last uoa, really likes to start rich. Something is causing this engine to crank just dumping fuel, but is perfectly fine once it's running. I have not figured it out. It's like starting a warm engine with the choke on.

Since it's January, the T6 came out and PP 5-30 went in.



The key here is a lot of idling and average speed of 20MPH this will read to quite a bit of fuel dillution just keep this mind. It is not affecting wear adversely right now.


make the inside of your engine oil cap white.
don't use.
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319414 01/11/20 08:36 AM
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antonmnster Offline OP
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All of the injectors are at index 12. And the coils all been done at least once. Now the spark plugs are about due - it's been probably three years 40,000 miles. And the last set I got.from Amazon so they're probably fake Bosch parts.

And like I said, the only notice time when the engine is rich is literally as it's cranking. Once it chugs and pops off it's perfectly fine. I changed the vanos solenoids thinking the cams we're starting off out of position, changed the coolant temp.sensor, an upstream O2 sensor, and made sure the manifold absolute pressor sensor is clean (maybe should just change it). Trying to get at the data points that feed the ECU pre start condition


2007 BMW 335i n54 210,000 miles, lubricated by whatever is on sale
Re: 2007 BMW 335i, 214k, 7500 OCI T6 5-40 [Re: antonmnster] #5319458 01/11/20 09:25 AM
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Audios Offline
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How would you know the engine is running rich to start? This is somewhat typical to get the car going, but how do you know its out of spec? BMW plays tons of tricks with injection and cam timing to get the cats warmed up as fast as possible, which is also why most dont have secondary air injection. Id try to take it on a good ride every other week or so, and see if the dilution drops.


2002 VW Golf TDI-T5 10/30
2007 Mercedes GL320 CDI-T6 5/40
2005 BMW M3 BMW-Twin Power 10/60
2003 BMW M5-M1 15/50
1998 BMW M3/4/5-M1 10/40
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