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Strange ticking noise from rear passenger side

S

SGRG

Member
Hi Fellas,

Another issue...again. Was filling great after installing the oth+r module but now this strange noise i hear from the rear of the car is making me worried. I definitely know that the noise wasn't there yesterday as i had the roof down and drove the zed around for a bit. I know it is definitely coming from the outside because if i have the windows/roof up i can't hear anything but as soon as i roll down the windows/roof the noise is quite evident. I don't think it is broken spring...not sure what else it could be. Tried doing some search but couldn't find anything helpful. Basically the noise is there from the moment i start driving.

The ticking noise is more clear around the 20sec mark onwards.
[youtube]ZNsf41YiGvA[/youtube]

Cheers
 
Difficult to tell from the audio - I couldn't hear a distinct knocking, but the repetitive tick, tick, tick - Have you checked for any small stones stuck in your tyre tread ?
 
gmetcalf said:
Difficult to tell from the audio - I couldn't hear a distinct knocking, but the repetitive tick, tick, tick - Have you checked for any small stones stuck in your tyre tread ?
Click to expand...

I had that once - turns out to be the brake pad sensor coming loose and was banging against the brake dust shield - I had the brake sensor tied up after changing to an aftermarket brake caliper.
 
Thanks for the response. I think ticking is better description. I found a post from cj10 which describes it better:
"Best way to describe it is a noise similar to when as kids we'd stick a twig in the spokes of our bikes and it made the high speed clicking noise as you rode (Well I did) It's faint, but annoying and noticable with windows open or roof down."

Checked the tyre as well nothing there. This is getting really annoying...help.
 
Sounds like what happened to mh wifes Mazda 6. The wheel would not budge when jacked up, the brake calliper was jammed on. Had to replace it. Should have noticed the decreased MPG though the week before. Just make sure you do not have the handbrake on when trying to turn the wheel.
 
SGRG said:
Jacked up the rear wheel yesterday and tried spinning it but it won't budge...anyone??? 
Click to expand...

I suspect you have jacked up one wheel but left it in gear. As such it wont turn at all. If you jack up both rears the diff will allow the other whne to couter rotate or just take it out of gear.

If your feeling brave you can make sure the car is rock solid stable with one wheel up and start the engine, let the clutch out and you can let one rear wheel spin gently and listen for the source of your clicking. Be careful though!!!
 
seanodwyer said:
Remember the scene in Ferris Bueller's Day Off!!!
Click to expand...

Yep - that's why I suggest rock solid stable and often don't make such recommendatiosn to others for things I'd do any day of the week with adequate safety precautions
 
Thanks for the response. Got myself Halfords' trolley jack kit today so i do things properly and don't replicate a scene out of Ferris Bueller when i jack the rear up :)

After having the car up and some inspection, i think the issue is with the rear left tire itself.

When i spun the wheel by hand i expected it to go around in perfect circle; however, it was very uneven. Not sure if it is very clear on the video.
[youtube]hF07CxtfZmI[/youtube]
I spun the rear right wheel as well and it was smooth.

This is the noise i get from the rear left wheel.
[youtube]-WaRNd49gVU[/youtube]

The left rear tire doesn't seem flat at all, i haven't got any tire pressure warning either; however, when i try to check tire pressure i get no reading at all. Rest of the tires do give proper reading though.

I am thinking of getting it inspected by BMW but they didn't call me back yesterday despite promising to. Also they want £138 just to check the issue. Thinking about replacing both rear run flats to standard tires. Fronts are already on standard. The only reason i am bit hesitant is i recently had the zed at local bmw dealer for coolant/brake fluid change and they did a full "health check" free of charge and the tire tread on both rears were pretty good. So feeling bit hesitant to take it to local tire shop for a tire change only to find out the issue is still there.

What do you fellas think?
 
Thats a weird noise...

A couple of things....

1) Is there any "play" in the wheel itself, with the car jacked up can you "rock" the entire wheel. ( Trying to check the wheel bearing )

2) You say its the left rear, can you swap over the rear wheels ? and see if the right one then makes the noise ?

3) Go to a garage and check the tyre pressures. ( You should do this every few weeks or so anyway )

Hope you get it sorted....
 
gmetcalf said:
Thats a weird noise...

A couple of things....

1) Is there any "play" in the wheel itself, with the car jacked up can you "rock" the entire wheel. ( Trying to check the wheel bearing )

2) You say its the left rear, can you swap over the rear wheels ? and see if the right one then makes the noise ?

3) Go to a garage and check the tyre pressures. ( You should do this every few weeks or so anyway )

Hope you get it sorted....
Click to expand...

Thanks for getting back fellas.

Right
1. nope the wheel doesn't rock at all. I thought wheel bearing as well initially but the wheel doesn't rock plus when i spun it (2nd video) there was no noise that would have lead me to believe it is the wheel bearing
2. thought about it but didn't have the tools to get the wheels off. Must invest in a torque wrench soon.
3. worth a try when i get some time. When i used my digital tyre pressure gauge i didn't get any reading from the rear left tyre but the other 3 gave a good reading.

Still no call from BMW, will give them a call tomorrow.
 
Is it possible you have a flat tyre with the sensor not working or not sending a reading try putting some air in it at your local garage you will soon know if it is.
The second clip sounds like rubber squeaking, you also might have a buckled wheel on the inside wont show from the out side often caused by those speed bumps that are in the centre off the road the ones you staddle.
 
jonnyfive said:
Is it possible you have a flat tyre with the sensor not working or not sending a reading try putting some air in it at your local garage you will soon know if it is.
The second clip sounds like rubber squeaking, you also might have a buckled wheel on the inside wont show from the out side often caused by those speed bumps that are in the centre off the road the ones you staddle.
Click to expand...

possibly although it doesn't look or feel like it has a flat. Saying that it is my first car with the run flats so not sure exactly how to determine this. My dilemma at the moment: take it to local tire shop to replace the rear left tyre and find out the problem is not fixed or take it to BMW and pay £138 to investigate the issue just to find out it is only a flat tyre. As mentioned in an earlier post, the rear left has decent tread left hence the hesitation to simply just replace the tyre. Hope it isn't a buckled wheel.
 
Could be right, the tyre looked very irregularly shaped, like it had a bad flat spot. Swap the left and right wheels for a definiteive answer as you say.
 
Take it to your local tyre shop and get them to check the tyre pressure and rim up on there ramp , there should not charge you for it , run flats can be repaired but alot of tyre places dont like doing it as there will want to sell you a new one .

if there come up with some thing like a puncture or buckled wheel get them to show you it so you know your not getting riped off simples, if nothing found then take it to a independent BMW specialist iam sure some one on here could recommend one close to you.
 
Flat tyre thats why it's creaking, looks uneven and has no pressure reading, And the ticking will be the screw or nail that has caused it. Gauge is working on 3 tyres so if it says no pressure in 4th then that is because...... Well there is no pressure :headbang:

Won't look flat if it's a run flat, also someone has possibly reset light with one flat tyre so will read correct now
 
gookah said:
Flat tyre thats why it's creaking, looks uneven and has no pressure reading, And the ticking will be the screw or nail that has caused it. Gauge is working on 3 tyres so if it says no pressure in 4th then that is because...... Well there is no pressure :headbang:

Won't look flat if it's a run flat, also someone has possibly reset light with one flat tyre so will read correct now
Click to expand...

cheers everyone! Just needed to talk it out with people like yourselves before deciding on a course of action. Looks like i will be heading to local tyre shop. It was just a bit difficult to determine a flat tyre on run flats specially since this is my first car with it on. Will update how i get on.
 
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