<![CDATA[BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin]]> https://f30.bimmerpost.com/forums/ All mechanical maintenance and service discussions, as well as TSB and service bulletins. en Sun, 26 Apr 2026 04:27:38 GMT vBulletin 60 https://f30.bimmerpost.com/forums/multisite-style/f30/misc/rss.jpg <![CDATA[BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin]]> https://f30.bimmerpost.com/forums/ F30 335i smoke test? https://f30.bimmerpost.com/forums/showthread.php?t=2238702&goto=newpost Thu, 23 Apr 2026 22:01:12 GMT Hello everyone, on my 2015 335i I recently got a CEL with permanent/confirmed code P0456, very small evap leak. The seal on the gas cap looks fine. Does the F30 have a "green cap" to insert a smoke tester, or should I put it where the purge valve connects?

Where should I be checking for smoke? I'm thinking gas cap, leak detection pump (NVLD?) and everything around in the rear passenger wheel well.

I believe the NVLD got an extended warranty on it, though I think I'm out of range for that. I did observe that my MIL came on when I started the car after sitting a day and a half. To my recollection, the leak detection pump / NVLD measures your evap system for leaks when the car is off. ]]> Jeffrey Z https://f30.bimmerpost.com/forums/showthread.php?t=2238702 N20 pre fill or prime turbo oil feed line https://f30.bimmerpost.com/forums/showthread.php?t=2238400&goto=newpost Tue, 21 Apr 2026 20:54:15 GMT Hi I have been googling and can’t seem to find a definitive answer to my question. Do I need to pre fill the oil feed line on a turbo before installing it? Or would priming the engine be sufficient in filling the feed line before starting? I am keeping the turbo but replacing all the feed and... Hi

I have been googling and can’t seem to find a definitive answer to my question. Do I need to pre fill the oil feed line on a turbo before installing it? Or would priming the engine be sufficient in filling the feed line before starting? I am keeping the turbo but replacing all the feed and drain lines. Would It be wrong to assume the residual oil in the old turbo should be enough to just prime the engine ?

Thanks, ]]> Zingaling18 https://f30.bimmerpost.com/forums/showthread.php?t=2238400 Looking for a mechanic around SAN JOSE / SCOTTS VALLEY https://f30.bimmerpost.com/forums/showthread.php?t=2237257&goto=newpost Mon, 13 Apr 2026 14:26:55 GMT Hi guys, I’m currently looking for a reliable mechanic in the San Jose / Scotts Valley area who would be open to working on multiple vehicles. At the moment, I have a 2011 M3 that is in limp mode, 2010 BMW 328i xDrive that needs brakes and a few additional items, a 2019 BMW 330i that requires... Hi guys,

I’m currently looking for a reliable mechanic in the San Jose / Scotts Valley area who would be open to working on multiple vehicles. At the moment, I have a 2011 M3 that is in limp mode, 2010 BMW 328i xDrive that needs brakes and a few additional items, a 2019 BMW 330i that requires some work, and a 2014 BMW 328i with a few diagnostic codes to address.

If you have any recommendations or know someone, I would greatly appreciate it.

Thanks!! ]]> ArminM3 https://f30.bimmerpost.com/forums/showthread.php?t=2237257 Very low transmission fill pressure https://f30.bimmerpost.com/forums/showthread.php?t=2237211&goto=newpost Mon, 13 Apr 2026 05:35:10 GMT Attachment 3941175 (https://f30.bimmerpost.com/forums/attachment.php?attachmentid=3941175) 2015 bmw 328i with 122k miles. Transmission has never been serviced before. The Clutch A fill pressure is outside the recommended range. Would a fluid change fix this or is there something more deeper that... Attachment 3941175

2015 bmw 328i with 122k miles. Transmission has never been serviced before. The Clutch A fill pressure is outside the recommended range. Would a fluid change fix this or is there something more deeper that needs to be fixed?

The car definitely jerks when shifting into and out of 1st gear. I also hear a "thud" from the transmission when slowing down to a stop at a red light (Likely from changing 2nd to 1st gear). All the other gears are smooth.
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]]> redsteel87 https://f30.bimmerpost.com/forums/showthread.php?t=2237211 whistling noise when steering https://f30.bimmerpost.com/forums/showthread.php?t=2236609&goto=newpost Wed, 08 Apr 2026 09:40:05 GMT My BMW F11 520d makes a kind of whistling noise; it seems to come from the steering wheel area when I gently turn the steering wheel while driving. I’ve been searching online and it sounds exactly like the noise in this video: ... My BMW F11 520d makes a kind of whistling noise; it seems to come from the steering wheel area when I gently turn the steering wheel while driving.
I’ve been searching online and it sounds exactly like the noise in this video: https://www.reddit.com/r/AskMechanic..._f10_steering/

I don’t know if it’s a coincidence, but the noise started after the front tyres were replaced.
Does anyone know what could be causing this noise? ]]> PeterBMW01 https://f30.bimmerpost.com/forums/showthread.php?t=2236609 BMW F30 Windshield Washer Leak https://f30.bimmerpost.com/forums/showthread.php?t=2236082&goto=newpost Sat, 04 Apr 2026 02:16:12 GMT Good day all. I have 2015 320i and the error for my windshield washer fluid keeps coming on. I fill it up, the light goes off, and a few days later it's back on. I have to assume I have some sort of leak. Has anyone else experienced this? If so, what was the fix? I found a video of someone fixing a different model, but it was a rubber o ring on one of the connecting plastic lines.

If I understand correctly, the washer reservoir is on the passenger side behind the wheel well liner.

Any tips would be greatly appreciated. ]]> dtstrickland https://f30.bimmerpost.com/forums/showthread.php?t=2236082 Timing System Assistence (URGENT) https://f30.bimmerpost.com/forums/showthread.php?t=2235862&goto=newpost Thu, 02 Apr 2026 18:48:28 GMT So, I have a 2014 BMW 328I with a N20 2.0L. I would like some assistance doing the timing chain. Since this N20 has a known issue with the timing system. I already have the ECS Tuning Timing Kit and the Two Intake and Exhaust Sprockets in the mail arriving tomorrow. I have never done a timing... So, I have a 2014 BMW 328I with a N20 2.0L. I would like some assistance doing the timing chain. Since this N20 has a known issue with the timing system. I already have the ECS Tuning Timing Kit and the Two Intake and Exhaust Sprockets in the mail arriving tomorrow. I have never done a timing system and need somebody to walk me thru via video chat. Can be thru Facetime or Google. Who is very experienced and done it before on their own time.

I also purchased the N20/N26 Timing Tool Set, Oil Lock Tool, and the N20 Flywheel Holder. Everything should be here April 10th. ]]> Mr_F30 https://f30.bimmerpost.com/forums/showthread.php?t=2235862 activate low pressure fuel pump via tool https://f30.bimmerpost.com/forums/showthread.php?t=2235466&goto=newpost Tue, 31 Mar 2026 12:01:51 GMT Hello, I would like to force the low pressure fuel pump to work, is there a way from the diag tool? Thanks edit: ista D, topic closed Hello,


I would like to force the low pressure fuel pump to work, is there a way from the diag tool?

Thanks

edit: ista D, topic closed ]]> lefreeman https://f30.bimmerpost.com/forums/showthread.php?t=2235466 gen 1 b58 spark plug replacement https://f30.bimmerpost.com/forums/showthread.php?t=2234999&goto=newpost Sat, 28 Mar 2026 00:10:42 GMT Changing plugs at 51,600, last done at 28k. At 28k I hand tightened. Now, when trying to remove each plug, the craftsman thin wall 14mm spark plug holder fits right away, and the racket will click easily when loosening or tightening, but with no effect on the plug. Same on each of 6 plugs. Cannot... Changing plugs at 51,600, last done at 28k. At 28k I hand tightened. Now, when trying to remove each plug, the craftsman thin wall 14mm spark plug holder fits right away, and the racket will click easily when loosening or tightening, but with no effect on the plug. Same on each of 6 plugs. Cannot even torque to 23nM since never meet any resistance. Using oem Champion RERX4ZWYPB.

Car ran fine with no error messages or hesitation. Car was not driven but today weather at 80 degrees F. Any help appreciated.
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]]> keithyo88 https://f30.bimmerpost.com/forums/showthread.php?t=2234999