Squeaky wheel DB9

[simonpieman]

Hi, I have a 05 DB9 Volante and should be grateful for any help with the following problem. I have searched the relevant threads and none seem to match the symptoms, which are:

• A squeak, which comes from the front O/S wheel
• Starts only once the car is fully warmed up and then occurs all the time ie not just under braking.
• Is heard at slow speeds ie under 20mph. Suspect that problem doesn’t go away at higher speeds, but at higher speeds other road noise masks the squeak
• It is not loud. I only notice it with the roof down. But with the roof down and in city traffic, it is very annoying.
• The squeak changes with braking. Sometimes it stops whilst braking. Other times in gets louder whilst braking. Applying the brake pedal, even small amounts, brings about these changes.
• The squeak monetarily stops with changes in direction – ie by turning the steering wheel slightly.

I’ve tried heavy braking at high speeds to burn off deposits. No good. The dealer has had the car back twice. No good.

Any ideas?

Thank you in advance.

PS I have posted the same question on AMOC forum, to get the widest sweep of knowledge. Readers of both forums - apologies for the repetition.

[blackice1]

Do you feel any juddering when brakeing.

[simonpieman]

No juddering

[blackice1]

is the squeak coming from the front and not the rear .

[don4l]

What did the dealer have to say, and what checks has he done?

It sounds to me like there is something stuck in the brakepad, but I wouldn't expect anything to stay there for any period of time.



Don
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[simonpieman]

don4l said:

What did the dealer have to say, and what checks has he done?

It sounds to me like there is something stuck in the brakepad, but I wouldn't expect anything to stay there for any period of time.



Don
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Pads have been removed and re-seated. Disc heated to burn off any residue. All cleaned up nice. Pads not worn out.

Not sure what other checks the dealer has carried out.

It is definitely not a stone stuck in the brakepad - would have been removed on the above dis-assembly and reassembly.

It is a low mileage car for 05 plate - only 8500 miles when I got it a few months back. Possibly under-use has caused wheel bearings to dry out; or pads to somehow deteriorate. Dunno. Will keep you posted with developments.

[toofastforme]

Hello, I had a similar squeaking on my V8V (when not braking). It started after they had replaced two of the wheel bearings, so I figured perhaps the brake pads were rubbing slightly when they were refitted. AM told me they are semi-frictional all the time (?). Anyway, they took the pads out, cleaned and refitted, and everything now ok. It was most likely the rear handbrake pads that were catching, though like you, I thought it was coming from the front of the car.

[revs88]

Oddly...I had a similar problem on my 2008 Vantage where I was convinced I had a noise problem coming from a front wheel at low speeds but it ended up being the fan belt (or some-other type of belt under the bonnet) which needed replacing.

Richard

[simonpieman]

Replacing the front brake pads, even though not worn, cured the squeaky wheel. Thank you to those who offered suggestions.

[Knights of Aston]

Pads can sometimes get contaminated with cleaners (wheel acid/TFR etc). When this happens it's almost impossible to get rid of without replacing them. Be careful what you clean your wheels with. Even worse with Carbon ceramics as the discs can absorb it too.

[simonpieman]

Knights of Aston said:

Pads can sometimes get contaminated with cleaners (wheel acid/TFR etc). When this happens it's almost impossible to get rid of without replacing them. Be careful what you clean your wheels with.

Thanks for the tip. What is TFR?

[Knights of Aston]

Traffic film remover. A lot of car cleaning firms use it.