This weekend the car has been driven quiet a few miles,
Blandford to Cambridge, then Cambridge to Bury St. Edmunds via Elveden, Then Bury St. Edmunds back to Cambridge, Cambridge to Stevenage, Stevenage to Blandford.
Listening as much as I can, I have not worked out where the sound is coming from apart from it appears to be from behind me, I cannot be 100% sure though.
Observations.
At 60mph the sound is still there, but the frequency is lower than 70mph.
At 75mph the sound is still present but higher frequency.
The sound varies with road speed, and not engine RPM. Shifting down manually the sound does not change.
Lifting off the throttle, the sound returns after a short period even whilst slowing down.
If when driving you ease of so the car is neither slowing down or speeding up the sound goes much quieter.
If you floor it the sound goes away until a steady speed is obtained.
First port of call is going to be replace tyres I think, then the diff oil perhaps if the tyres don't fix it. I dont think its a wheel bearing, although again cannot be 100%. Even after driving 100 miles, I checked the wheel temperatures at Winchester services and all 4 wheels where stone cold so its not brakes either.
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Manny
2004 A4 1.8T Sport Cabriolet, 89K Miles
Past
2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly
with retrofit AMI and DVB-T in place of Analogue
2003 Volvo S60 D5 SE Manual, 197K miles.
2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles
Last edited by mannyo; 9th March 2014 at 09:06 PM.
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