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BMW 3-Series (E90 E92) Forum
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E90 N52K 328i High Mileage Repairs
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09-16-2019, 05:22 AM | #23 | ||||||
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Drives: 2007 328i / 2014 M235i
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09-16-2019, 05:31 AM | #24 | |
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How do you know it becomes somewhat eventually clogged? Have you tested one, or opened an old reservoir up and inspected the filter? I think the filter getting clogged is just an assumption. Have you ever replaced the lifetime fuel filter in the fuel tank?
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
Last edited by Efthreeoh; 09-16-2019 at 05:37 AM.. |
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09-16-2019, 05:39 AM | #25 |
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When I bought my Z4 from CarJax, I discovered months later the airfilter had an old mouse nest in it. The filter was 1/2 clogged with shredded newspaper and cloth. When I changed to the new filter, I never noticed a difference nor an improvement in fuel mileage.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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09-16-2019, 10:58 PM | #26 | ||
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09-17-2019, 07:33 AM | #27 |
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My pump has a slight groan, the fluid is old, and the o-ring in the cap leaks. The tank is cheap enough that I figured I might as well just swap the tank instead of just the o-ring, and get a clean filter. Maybe a waste of 10 bucks, but *shrug*. I'll install it this week some time.
On mine, a bunch of suspension parts started going at 150k. Shocks and struts had been done at 130, but not the mounts... the upper mounts in the rear rusted out at 150 (new england car) but the rubber was also cracking and soft. Front upper and lower control arm bushings were also squishy, and were an easy swap. The control arms very noticeably tightened up the handling, and got rid of an annoying thump under hard braking. I'm also thinking that now is a good time to start swapping out the 'lifetime' fluids... front and rear diff, transmission, transfer case, etc, so I'm getting started on those over the next few weeks. There's a bearing going in either the transmission or transfer case, and I'm hoping that in the process of replacing the oil i can figure out which one it is. Leaving the original lifetime fluid in those probably didn't help the life of the bearing. I also had to replace the front (xi) drive shaft around 130k. Not sure if yours is original, or if it is a common failure, but maybe try to wiggle those u-joints and check their condition the next time you're underneath it. |
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09-17-2019, 08:10 AM | #28 |
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I replaced my reservoir, but only because the o-ring had failed and my PS pump was noisy as hell. I completely agree that too many people blindly replace parts believing it necessary or somehow beneficial. In this case, I figured there was a decent chance the pump had began to mulch itself, so rather than just replace the o-ring, I’d do the whole reservoir for $15.
Turns out it’s actually my steering rack making noise, but that’s another story... vilord : what kind of noise is your driveline making?
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09-17-2019, 08:57 AM | #29 |
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I notice under mild deceleration (lift off the pedal), and especially around turns, there's a slight low pitch whine.
At first I thought it was a wheel bearing, as the sound is similar to that, but it sounds like it is coming from the front center driveline, not a wheel, and it doesn't make the same noise if i go around the same corners under acceleration. The dual mass flywheel in my car is also starting to fail... which sounds like some sort of major engine problem at idle. I wonder if it could be related to that. |
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09-19-2019, 11:36 PM | #30 | |
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