Factory Parking rear parking sensors retrofit.

[hawaiianblue]

So I've just retrofitted the factory parking sensors onto my 2009 XTR Multispace.

The wiring was all there for them.

If you want to check, pop out the blank switch panel by the drivers knee and see if there is a plug plugged into the back of the blank.
Secondly, pop the left hand rear boot trim off and find the module plug, if you don't already have a tower fitted then this may be wrapped up in foam with the tow prep wiring.

If you have that then you're all good.

The parts you need;

• Dash parking disable switch - you don't actually 'need' this but they're cheap on eBay so it makes sense to fit one.
  
• Rear parking module (ECU)
  
• rear sensors with harness and holders
  
• Link harness from bumper to module.
  
• Rear bumper with sensor holes (unless you want to cut your own holes), I just bought a complete second hand bumper with sensors and wiring with it.
  

There were two systems used on the B9, for some reason they changed systems in about 2015 for one year only, then went back to the original system - If you have a 2015 then you may struggle to find the parts. It's only the Module that's different, and the plugs to go with it.

First swap the bumper (or at least drill yours to fit the sensors and wiring).
Remove the LH boot panel and locate the oval bung in the rear corner near the floor, pop this out and replace it with the link harness.
Attach the module to the two 6mm studs at the top of this compartment and connect the link harness and main harness to the module, you can now put the panel back on.

Connect the sensor harness under the bumper to the bottom of the link harness.

Fit the dash switch.

Now you're ready to configure it all with Diagbox. There are several options when configuring it depending on your vehicle spec. If you have a type C multi function display you can configure this to give you a visual distance indication. You can also tell the radio to mute and play the audible beeps, you also have the option of playing these beeps through the com2000 instead. You can choose to have the dash switch activated or not, so if you didn't bother to fit one just don't activate it.

 It works well and was a relatively painless install, it looks far better than any of the after market rubbish. It even ignores my fixed tow bar.
It cost me about £150 for all the bits including another XTR bumper via ebay, I bought the link harness new as most of these seem to get chopped through - they're only £20ish. If you can find one at a local breakers and take the bits off yourself then you could probably get the whole lot for less than £100 easily.

[labeline]

Interesting thread. Dinked my bumper against a low bollard today. Whereas last time it hit the tow hitch, this time it creased the bumper. I hate damage on my cars so will buy a new centre section. I thought while I was at it I would install reverse sensors as the new bumper skins are not much more expensive. All the wiring is there so why not? Just got to accumulate the parts now so will visit a couple of breakers here in France to see if they have the bits. Can you tell me whether you bought new sensors or second hand. I see genuine used Bosch ones are £27 each on EBay whereas you can get 4 new after market ones for £30. Also which control unit did you use?