The Random E46/ZHP Question Thread

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Originally Posted by Prestovie

I guess it could be a tire balancing issue but the weights are all still on, not like its a new set of wheels. Just had the car aligned a few weeks ago with the winters on. I may have just been unlucky and accidentally rotated my tires because I didn't have them marked.
Anyone have any ideas? I'm waiting for it to be something simple but I've looked over everything.
Symptoms: wobble at any speed, seems to be consistent at anywhere from 10mph to 45mph(highest I've gone with this problem), steering wheel bucking back and forth, audible "wubbing" coming from the rear.

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Just some guesses off the top of my head:
- wheel / tire balance?
- directional tires rotating backwards?
- rust on the mounting face(s)?
- flat spots in your tires?
- recheck the torque of your lugs

Doesn't seem safe to drive.

Swap back your winter wheels/tires and see if the problem persists.

Quote:

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Originally Posted by Will

Just some guesses off the top of my head:
- wheel / tire balance?
- directional tires rotating backwards?
- rust on the mounting face(s)?
- flat spots in your tires?
- recheck the torque of your lugs

Doesn't seem safe to drive.

Swap back your winter wheels/tires and see if the problem persists.

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Also how were they stored through the winter? Do unloaded tires flat spot?

Quote:

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Originally Posted by Will

Just some guesses off the top of my head:
- wheel / tire balance?
- directional tires rotating backwards?
- rust on the mounting face(s)?
- flat spots in your tires?
- recheck the torque of your lugs

Doesn't seem safe to drive.

Swap back your winter wheels/tires and see if the problem persists.

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Appreciate the ideas, it might just be that they're out of balance which is what im hoping for. style 135's so nondirectional, gone over every bolt twice now and surfaces were clean but I didn't check for flat spots so I'll have to take a gander tomorrow. Probably a good idea to just put the winters back on, though :thumbup

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Originally Posted by ZHPizza

Also how were they stored through the winter? Do unloaded tires flat spot?

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Not proud of it but they were stacked up in my driveway with a tarp and bungee cord to cover. They all still hold air though so I'm hoping the winter didn't damage them.

I notice my PSS tires get a flat spot if they sit for 2 weeks. It usually takes a decent amount of miles (40?) to round out again.

A harder tire might take longer to round back out. It’s just a guess.

Any recommendations on oil? I’ve used mobil1 full synthetic in the past but wondering what may be out there that’s potentially better

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Originally Posted by BADCLOWN

Any recommendations on oil? I’ve used mobil1 full synthetic in the past but wondering what may be out there that’s potentially better

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Wondering the same

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Liqui moly from fcpeuro.

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I second Liqui Moly.

I've also been happy with Pennzoil + BG MOA 110 though.

Brotella is good too

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Quote:

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Originally Posted by stephenkirsh

I notice my PSS tires get a flat spot if they sit for 2 weeks. It usually takes a decent amount of miles (40?) to round out again.

A harder tire might take longer to round back out. It’s just a guess.

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Appreciate the input, will definitely monitor over the next couple weeks seeing that I don't get out to drive as much anymore, might take a little longer to even out