335i serious vibration issues at M-Way speeds
Discussion
Hi all, wondering if anyone could point me in the direction of what's wrong with my car.
Car is a 2007 335i E92. When driving at 70mph the car will start to shake slightly, then get progressively worse the longer I drive. Up to the point where I can't see anything behind me due to the rear view mirror shaking so much. The vibration seems to be coming from the rear of the car. It's not a wheel balancing issue.
It has a warranty but the local stealership doesn't really have a clue what's wrong with it.
The car was throwing a low pressure fuel sensor warning, so they changed that out but it didn't seem to make any difference. I am now inclined to think that it might be the prop shaft or rear driveshafts.
Both rear driveshafts boots are worn, so it might be ingress into that which is causing it. But it's strange that it's only at high speeds. Driving at speeds under 50mph it feels fine.
Anyone else had this issue? Just looking for something to point them in the right direction.
Car is a 2007 335i E92. When driving at 70mph the car will start to shake slightly, then get progressively worse the longer I drive. Up to the point where I can't see anything behind me due to the rear view mirror shaking so much. The vibration seems to be coming from the rear of the car. It's not a wheel balancing issue.
It has a warranty but the local stealership doesn't really have a clue what's wrong with it.
The car was throwing a low pressure fuel sensor warning, so they changed that out but it didn't seem to make any difference. I am now inclined to think that it might be the prop shaft or rear driveshafts.
Both rear driveshafts boots are worn, so it might be ingress into that which is causing it. But it's strange that it's only at high speeds. Driving at speeds under 50mph it feels fine.
Anyone else had this issue? Just looking for something to point them in the right direction.
Does the vibraton start more with the steering wheel or the front seats... seats is usually the rear wheels whilst steering wheel tends to be front wheels.
Missing prop bolt would probably be apparent all the time. Donut/Guibo worn?
I'd be checking rear wheel balance too unless you have done that already.
Missing prop bolt would probably be apparent all the time. Donut/Guibo worn?
I'd be checking rear wheel balance too unless you have done that already.
Few things to check that could be causing your issue but the fact you say it gets worse the longer you driver suggests brakes related or tyres.
General things to check:
Tyre pressure - please make sure they are correct!
No vibrations are 50mph, plenty at 70, what about above this, if it reduces then could be a buckled wheel or balancing issue (lost a weight)
Specific things to check, go for a 5-10 mile drive, make sure you brake quite a few times coming off a motorway etc
Get out and feel the heat coming off the disks.
I have a 2011 335i, and I could swear I was feeling vibrations in general in the rear, when I lightly touched the pedal it would go, was rear caliper sticking. Knew it was that straight away as I recently had it on another car.
Outside of that, it will be tyres, wheel balancing, or kinked/bucked wheel.
Its just a process of elimination
General things to check:
Tyre pressure - please make sure they are correct!
No vibrations are 50mph, plenty at 70, what about above this, if it reduces then could be a buckled wheel or balancing issue (lost a weight)
Specific things to check, go for a 5-10 mile drive, make sure you brake quite a few times coming off a motorway etc
Get out and feel the heat coming off the disks.
I have a 2011 335i, and I could swear I was feeling vibrations in general in the rear, when I lightly touched the pedal it would go, was rear caliper sticking. Knew it was that straight away as I recently had it on another car.
Outside of that, it will be tyres, wheel balancing, or kinked/bucked wheel.
Its just a process of elimination
With regards to the tyres, usually they are staggered, but I have winters on at the moment which are the same all round. I feel the vibration through the seats so I know it's coming from the rear. The tyres were checked last Friday by my local stealership. It's now booked for a check on Thursday.
Another thing to note, as I mentioned before the vibration does not start at 50mph, but 70mph. But when it starts at 70mph and gets progressively worse, after I slow down again even without touching the brake, the vibration will get louder the slower I go until I come to a stop. Then it disappears again until I accelerate up to 70mph again.
Another thing to note, as I mentioned before the vibration does not start at 50mph, but 70mph. But when it starts at 70mph and gets progressively worse, after I slow down again even without touching the brake, the vibration will get louder the slower I go until I come to a stop. Then it disappears again until I accelerate up to 70mph again.
hornetrider said:
Begs the obvious question - have you swapped them off for your summer set in order to eliminate the wheels as a possible cause?
No, but I'm hoping it's the driveshafts, seeing as they wouldn't replace them under warranty due to perished seals, they would have to replace them if this was the cause.I'll hopefully find out soon enough.
Silverbullet767 said:
hornetrider said:
Begs the obvious question - have you swapped them off for your summer set in order to eliminate the wheels as a possible cause?
No, but I'm hoping it's the driveshafts, seeing as they wouldn't replace them under warranty due to perished seals, they would have to replace them if this was the cause.I'll hopefully find out soon enough.
Moose. said:
Sounds like it could be a sticking rear brake. Next time it happens, pull over and feel all your wheels and you might find one that's much warmer than the others. Had this on the 125i last month.
Good luck!
Had this on my 335i Coupe.Good luck!
Simple to find out as above you will have a warm wheel, when the car is parked give the brakes a really good hard prd at standstill and see if that makes the vibration worse.
JD said:
Moose. said:
Sounds like it could be a sticking rear brake. Next time it happens, pull over and feel all your wheels and you might find one that's much warmer than the others. Had this on the 125i last month.
Good luck!
Had this on my 335i Coupe.Good luck!
Simple to find out as above you will have a warm wheel, when the car is parked give the brakes a really good hard prd at standstill and see if that makes the vibration worse.
Silverbullet767 said:
And the winners are...
Moose. and JD!
After driving home my rear NS wheel was hot to the touch while my OS rear was cool.
Thanks all. This lets me point something out before it goes in tomorrow so the workshop aren't scratching their heads for hours.
I won Moose. and JD!
After driving home my rear NS wheel was hot to the touch while my OS rear was cool.
Thanks all. This lets me point something out before it goes in tomorrow so the workshop aren't scratching their heads for hours.
I said it first!
WHen was the last time your brake fluid was changed, I've heard theories the corrosion is caused by water being absorbed by the brake fluid ( the very reason that you change it every so often) - Had a sticky caliper on a 330Ci, which never had it's fluid changed in the six years we owned it.
Anecdotal personal experience + read same on the internet = FACT
Anecdotal personal experience + read same on the internet = FACT
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