High pitch nose from the reversing sensors

(17-02-2012 12:10am)XFullFatTim Wrote:  the sensors are watertight, but not to the pressure that a pressure washer can generate, especially when it's held close to the car's body. 4 years ago I hastened the demise of my Defenders chassis by using a very high pressure pressure washer to get the mud off............. unfortunately it also removed lots of rust leaving me with an 18" long hole in the chassis box section.

Ouch, wide spread for the water jet required, i'm always a bit wary using the pressure washer on car, as have cut the surface off patio slabs with it!

(17-02-2012 12:39am)fam1x Wrote:  well just went for a drive to check the noise again but enable to replicate the problem car seems to be working fine again

It was maybe a high pitch scream from someone you just knocked over

I think these car wash places are over enthusiastic with their use of a jet wash especially if the car is filthy and they also tend to use the more powerful versions.

(17-02-2012 12:43am)broady43 Wrote:  It was maybe a high pitch scream from someone you just knocked over

Thanks Broady not run over anyone that didnt deserve to be run over hehehe.

(16-02-2012 11:17pm)XFullFatTim Wrote:  This is a sign that one of the sensors may not be working properly. Could be one of two things - a) Is the car very dirty and the sensors dirty or b)Have you had the car pressure washed recently?
I haven't experienced it with my Evoque but I did with an RRS every winter when the car got very dirty after snow and the roads had been salted. The problem with pressure washers is that if the jet is directed straight at a sensor it can damage the covering and fill the sensor head with water. To find out which sensor is in fault get somebody to sit in the car with the engine running and the sensors switched on and walk close to the heads, you may hear one clicking, that is the faulty one!

If you put your ear to a parking sensor while reverse is engaged it SHOULD make a clicking noise, we have problems with park sensors all the time, if it's not the sensors it's the wiring