QUOTE (Rolla Boy @ Oct 30 2009, 06:14 PM)

The reverse sensors aren't an assurance against hitting objects, they're only a guide...
But if you're reversing against a flat wall, you will never have any problems if the sensors are working correctly...
A 4cm gap from the wall at a constant beep is ok to me, unless you're reversing at speed you won't have any problems...
On purchasing the sensors I was advised they were a four head sensor system. After taking delivery and advising the dealer that the system was not effective I was then advised that they could only fit two sensors because I had a tow bar.
When I tested the sensors I reversed against a wall. The first indication I got that there was an obstruction was approx 40cm from the wall when I got a single beep - then on moving a further 4cm I got a continuous beep.
Whilst I know they are only a guide - I would have thought that you would get more distance when the warning was sounded. I should have been advised that they would only be fitting two sensors of the four (as they knew this prior to my ordering the sensors for my vehicle).
Having regard for the driving skills of the other person who will be driving this vehicle - the more warning the better