Rear Parking Sensors fitting

[alexandjen]

Just about to start the task of fitting revering sensors and wonders if anyone has any tips or hints that may come in handy.
I have read the how to in the maintainance section but I fear that there is a lot more behind the rear bumper of a facelift.
I think I am going to have to remove the bumper to drill and route the wires and just need clarification on the mounting bolts etc.
I'm ok with the screws in the wheel arches(well the two that are visible, one each side that is) and the push pins beneath but am having trouble finding the torx bolts inside the boot. Do I need to remove the trim panel just inside the boot or better still do you think I could leave the bumper in place to drill the holes and route the wires.

[Auto Addict]

I didn't have to remove the rear bumper to fit mine.

I drilled the holes, then with a straightened out wire coat hanger, attatched the cable to it, then poked it through, bit fiddly, but got there in the end.

[alexandjen]

Thanks AA, where on the bumper did you position yours, same place as the one in the maint sect?

[Dave-C]

Looking for some too, seen some 4 sensor ones on fleabay £39.99 or there abouts....  the bumbers come off easy anyway if needed...

PLS keep the post going with your progress..

DC

[Auto Addict]

Thanks AA, where on the bumper did you position yours, same place as the one in the maint sect?

Yes.

[alexandjen]

Yes mines got 4 sensors and a display which shows distance and position of obstacle.

http://cgi.ebay.co.uk/Valeo-Beep-Park-Display-Rear-Reversing-Parking-Sensor_W0QQitemZ110209859036QQihZ001QQcategoryZ75330QQrdZ1QQssPageNameZWD10VQQcmdZViewItem?_trksid=p1638.m127

[Taxi_Driver]

I didnt take my bumper off either........did same as AA, but used a long posidrive to get the wire thro the foam behind bumper......getting the wires into the boot were easy for me........ive got an air vent in the spare wheel well.

[alexandjen]

Thanks AA, where on the bumper did you position yours, same place as the one in the maint sect?

Yes.

Cheers, I'll try with the bumper on then.  

[alexandjen]

I didnt take my bumper off either........did same as AA, but used a long posidrive to get the wire thro the foam behind bumper......getting the wires into the boot were easy for me........ive got an air vent in the spare wheel well.

I suppose the air vent is only fitted on the estate  

[Auto Addict]

Thanks AA, where on the bumper did you position yours, same place as the one in the maint sect?

Yes.

Cheers, I'll try with the bumper on then.  

If you can get someone to help, it's a bit easier.

One under the bumper to catch the end, and one poking through.

[alexandjen]

Mmm could be tricky today unless wifey wants to lay under the car  

[Taxi_Driver]

I didnt take my bumper off either........did same as AA, but used a long posidrive to get the wire thro the foam behind bumper......getting the wires into the boot were easy for me........ive got an air vent in the spare wheel well.

I suppose the air vent is only fitted on the estate  

Errr No........Its coz i have an lpg tank in there......and if I get a leak on the tank, as lpg is heavier than air.......it escapes thro the vent and doesnt fill the car up with lpg gas  

[alexandjen]

Ahh gotcha, silly me........

[Marks DTM Calib]

If you remove the plastic trim inside the boot on the slam panel then you will find a grommit.....you can pass the wires through it.

The reverse light wiring is just forward of the spare wheel on the saloon.....and I mounted the controller on the metal plate there to (which is where the orginal fit controller is fitted)

The wifes just popped out in the car so I cant measure the sensor position but, I put mine in the same place as they were fitted from the factory.

[alexandjen]

Cheers Mark, all fitted now and working perfectly  

A few small variations on the maint guides:

There are two trim pins under the bumper holding it on.
The screws in and under the wheel arches are in fact torx bolts/screws.
I had to remove the bumper as the polystyrene would not let me feed the wires through at all.

Took a while but mostly because I had to keep offering the bumper up and removing again so I could adapt the polystyrene so the sensors and wiring were not fouling on it.
All in all though I am well pleased as is the better half who drives the miggy more than me anyway