Strange Noise After 20m From Cold Start

I've been meaning to post this question for months....
 
Every day, as I drive away from my house for the first time that day, there is a comedy-style "twang" noise comes from somewhere beneath my feet, like a metallic strip springing into place. It only seems to do it once a day!
 
I reverse off my drive, drive away and about 20 metres down the road "twang".
 
Anyone else experienced this noise?
 
Any ideas??
 
Dave

I haven't noticed it on mine but I know on the RX8 the ABS does a self test after you first pull away which results in a "clunk" when the car reaches around 7KPH. I would think the two cars probably have very similar systems so it probably happens on the 5, I'll check next time I drive it. 

Thanks Nick.

It would certainly be the same system (ABS) as on the 3 series but I haven't noticed any noises/issues like that on mine either. 
Though I realize this is not directly under foot, could it have something to do w/the parking brake corroding (i.e. surface rust) while parked overnight?  I know mine has a pair of coil springs mounted on the calipers to return the brake to neutral status.
 

Mine does a very slight clunky sort of twang shortly after pulling away. It's very feint but I suspect it is the ABS, as with the RX8. The 2008 5 has more soundproofing which will dull the sound a bit more. It seems to do it at a slightly higher speed than the RX8, I'd say at about 15mph.

quote:

ORIGINAL: Dads_Taxi

I've been meaning to post this question for months....

Every day, as I drive away from my house for the first time that day, there is a comedy-style "twang" noise comes from somewhere beneath my feet, like a metallic strip springing into place. It only seems to do it once a day!

I reverse off my drive, drive away and about 20 metres down the road "twang".

Anyone else experienced this noise?

Any ideas??

Dave

 
Hi,
 
We have a facelifted 2008 Sport 2.0D (UK) and it makes exactly the same noise.
 
Seems to coincide with returning the steering wheel to straight ahead after a making turn -  usually the second turn after starting up and as said only does it once.
 
Dealer had a look but couldnt find anything wrong.
 
Won't worry if its a "characteristic" !!
 
On another subject all 4 tyres seem wearing quite quickly on outside edge (2500 miles) so will keep an eye on them and report further. Wife drives it most of the time so its not be ragged around roundabouts.
 
 

Hi all, it does sound like it's a characteristic, so that's reassuring, and it sounds like Nick's theory is highly likely to be correct. That's one less thing to worry about!
 
Keep an eye on those tyres!
 
Thanks to you all for the contributions to this query.
 
My horn has stopped working now!! I thought Japanese cars didn't go wrong. Doh !
 
 
Dave.

We have just bought our first Mazda, a 5 2.0 Diesel Sport in Black 2008 facelift model. Feel we got a good deal on it & look forward to what I hope will be a good long realtionship with the marque. I''ve had a number of different makes over the years, but a Toyota Avensis was one of the best alongside a raft of VW''s & a Skoda (other car Octavia Vrs).
 
Anyway, to the point...we''ve only had it a couple of weeks & apart from some issues with parking sensors we had fitted as an extra...the only problem I''ve had has been this grating/vib not long after moving off. It''s happened a few times & is quite unerving...so this thread was of interest.
 
I''ve only just discovered this site, so I am off to check out the other problem area''s I might encounter. I knew there was a problem with pre facelift 5 tyres but thought this had been resolved on the facelift UK car????
 
Thanks & see you again soon !

Hi - Ours is a black 2008 diesel sport and we too had problems with the rear parking sensors fitted by the dealer !!
 
It also makes the grating noise and if you look at my thread on here I think the front tyres are starting to wear excessively.
 
Apart from the tyre wear its a great car though.

I have the noise almost always every morning or first use of the day, usually also after the first reverse. In my humble opinion the noise comes from the rear and I have put it down to movement between the mating surfaces on the rear exhaust to the previous section where it is connected by a spring loaded fitting. I believe after the car has been used and exhaust cools it sticks and when you start moving when it is cold you are ''''cracking the seal'''' (not literally) on the mating surface momentarily. I don''''t beleive it to be a cause for concern (personally) but it would help to know for definite. What I may do when the weather is warmer is open the joint and apply Copperslip (or similar nuclear grade anti-slip) grease to reduce or remove the snapping/grinding/crunch noise that it generates when it occurs.
Go on! Have a look under the back of your Mazda 5 at the joint at the tail exhaust and give it a yank (cold of course) see if you can replicate the noise/effect. By the way Mine is a Mazda 5 2.0 petrol Sport from July 2008.
I have a QUESTIOn....... I find the 205/50x 17 Dunlop SP tyres slip and perform poorly in damp & wet conditions. Does anyone have experience of better tyres on the Mazda 5?

Hi all...
Guess what i to have the same noise first thing or after a long break had the problem from new been to dealers twice about it but no joy booked in for power steering pipes to be change for bigger ones on friday dont no if this will solve the problem.. Only done 4200 miles in my 57reg 2.0 furano and got tyre wear on out side of front tyres too dealer say tracking might be out and i have to pay for it to be checked why should the tracking be out after only 4200miles...........

I would check the inside edge of the front tyres too. (See my thread on 2008 model tyre wear)

thanks
 
i have checked inside edge they are ok they seem..... do you think the power streering pipe change will solve the noise problem i have????

I think some of they guys on here said it cured theirs - Fingers Crossed for you.

I seem to be getting a grinding/scrapping noise from the front right side a lot of the time. It used to be just when the car was cold, but now it happens even after a 5 minute stop !!
 
Its not the twang noise, that others are reporting though...  I guess I''ll have to pay a visit to the dealer.. 

hi all
 
Took the car in for the power steering pipes change.. But when they got the car on the ramps they found out the car already as the modefied pips on when it was manufactured so they say anyway.....
So back to stage one no idea what it is

Triplet Man, I think you are confusing two different issues here (or possibly three!)
 
The power steering pipe modification was the fix to a nerve-wrenching screech that the vehicle produced whilst reversing and turning the steering wheel from full lock. If you have already got the modified pipes, you won''t have experienced the noise - and you would remember it if you had!
 
The twanging noise appears to be a feature not a fault, or that would seem to be the concensus in this thread anyway.
 
Just don''t get me going on TYRE WEAR
 
but whilst we''re on the subject......
 
First, do as they suggest, and get your tracking checked. Make sure its a full 4-wheel alignment check carried out on one of the posh laser alignment machines. Insist on a before and after read-out from the computer, and get a receipt (when I had mine done in Bolton it was around £45)
 
I would put money on: 
1) your tracking is spot on, and
2) you have Dunlop Sport tyres on the car.
 
Then kick up an almighty fuss with your dealer and Mazda UK, attempt to get a different brand of tyres fitted with Mazda coughing up for them, insist on a refund of the cost of the alignment check which proves they were wrong about the tracking being out, and keep us all up to date with what''s going on, or not, in the Tyre Wear thread on this forum.
 
If you have an entire day free you could read that thread to see how frustrated you''re about to become..
Best of luck.
 
Dave.

Hi all
 
Thanks for that dads-taxi...
I will do that why should i just sit there and take all that bull from them watch this space....
 cheers