Front parking sensor problem

Hi

I have a 2004 B6 A4 with front and rear sensors.

Last week the two right hand front sensors stopped working and the system
makes random high pitched beeps as if it's a loose connection.

I doubt the sensors themselves have gone but wondered if anyone had come
across a particularly week connection for those sensors that causes them to
go out.

It may be a coincidence but the right hand headlight washer failed to
retract completely the day before the sensors failed but has been fine
since. I put that down to the washer reservoir being almost empty so the
headlight washer couldn't pressurise completely and thus only raised the
washer about half an inch.

I've read a few cases of two front sensors going out at the same time and
people being quoted £300+ to get them fixed by Audi as they don't come
painted. I'd be grateful if anyone who has had this happen can let me know
their experiences.

I may just buy the sensors and get a bodyshop to do the work as I have a few
bits that need painting so it's probably more worthwhile to get them fixed
if a batch of paint has to be mixed. Might also get a couple of extra
sensors as spares in case this happens again.

Cheers
Dave

Dave wrote:
> Hi
>
> I have a 2004 B6 A4 with front and rear sensors.
>
> Last week the two right hand front sensors stopped working and the system
> makes random high pitched beeps as if it's a loose connection.
>
> I doubt the sensors themselves have gone but wondered if anyone had come
> across a particularly week connection for those sensors that causes them to
> go out.
>
> It may be a coincidence but the right hand headlight washer failed to
> retract completely the day before the sensors failed but has been fine
> since. I put that down to the washer reservoir being almost empty so the
> headlight washer couldn't pressurise completely and thus only raised the
> washer about half an inch.
>
> I've read a few cases of two front sensors going out at the same time and
> people being quoted ?300+ to get them fixed by Audi as they don't come
> painted. I'd be grateful if anyone who has had this happen can let me know
> their experiences.
>
> I may just buy the sensors and get a bodyshop to do the work as I have a few
> bits that need painting so it's probably more worthwhile to get them fixed
> if a batch of paint has to be mixed. Might also get a couple of extra
> sensors as spares in case this happens again.
>
> Cheers
> Dave
>
>
>
I don't have experience with these but the coincidence of both failures
on the right side at the same time is just too much to ignore. I would
check to see if the washer activation hit a wire from the sensor causing
the problem.