Re: 406 Peugeot Estate

Yuting Wan wrote:

> "Ray Lynch" <raymondlynch21@[EMAIL PROTECTED]
> wrote in message 
> news:sM3kj.27895$a61.25172@[EMAIL PROTECTED]
>> Hi
>> 
>> I have just purchased a rear parking sensor kit from the local 
>> Peugeot dealer. The kit is fine, but the instructions are similar 
>> to an IKEA fixit kit. All diagrams and no words - not very easy to 
>> follow!
>> 
>> It would appear that the rear bumper needs to be removed according 
>> to the instructions, but it is possible to fit the wiring without 
>> taking off the bumper, which would appear to be a two-handed job. 
>> Also there are two photos which would appear to mean absolutely 
>> nothing to the general fitting.
>> 
>> Any advice would be appreciated
>> 
> hi, you can fit the sensors one by one without removing the bumper. 
> some peugeots or citroens have already had predrilled hole on the 
> bumper and if not you may have to spend some time to get the holes 
> drill precisely. One very im****tant thing is not to alter the length
> of the sensor cable otherwise you will stuff up the distanse
> measurement. hope this info helps.

I don't think that last part is true - the sensors are ultrasonic, and
the distance measurements are made by measuring the time between sending
out a pulse and getting an echo from an obstacle.  The speed of sound is
*much* slower than the speed of the signal down the cable, so the length
of the cable won't have any measurable effect on the distance measurement.