I've treated my 2006 autobiography to a new rear bumper, new unpainted part for a bargain price, I'm so lucky. Had it painted, brilliant, really happy. Come to fitting, realised parking sensor holes are different sizes. Research tells me the replacement bumper is for a 2010 - 2012, I'm so unlucky. Sensors on 2006 triangular arrangement of pins, 2010 onwards straight line arrangement of pins. unlucky. I've found a set of four replacement sensors with wiring harnesses (3 short lengths of wire) on ebuy for £44.

Hoping that someone has been where I am, has done the hard work and can advise what colour codes correspond with the colours in my existing harness, and is prepared to share it. Replacement sensors are coloured blue, yellow and green. My existing harness is coloured yellow/brown, green/brown and brown/white.

Don't confuse unlucky with careless  current l322 4.2sc, p38a 4.0 hse, x350 xjr, x308 xjr, x308 daimler super8, saab 93 convertible and a Transit. Most bases covered.

Hi all, just a quick note to update you on my findings. Powerful UK have been there, done that, made the video. Also provide a good reference on their web site "L322 06 2010 Conversion Parts". Unfortunately they are out of stock of the parts. Thank you Powerful UK.  current l322 4.2sc, p38a 4.0 hse, x350 xjr, x308 xjr, x308 daimler super8, saab 93 convertible and a Transit. Most bases covered.

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Need up with sensors and wiring harnesses (4plugs with 9” of wires attached) off the auction site. Sensors are a good fit in the 2011 bumper.
Unlike the powerful uk video the plug connections are not numbered and the wires not colour coded.
Trial and error revealed centre connections are paired. Left wire to right wire on old sensor. Right wire to left wire on old sensor.
Try the sensor before mounting to bumper, if it doesn’t work correctly switch the outer wires. Copy the wiring on the other three sensors. current l322 4.2sc, p38a 4.0 hse, x350 xjr, x308 xjr, x308 daimler super8, saab 93 convertible and a Transit. Most bases covered.