[dazz100]

Hello
I am planing to do a front/rear PDC installation on my 2008 E90. I have been doing research on part numbers based on this thread.
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PDC front / rear Module part number history.
I think it should be OK to use any module made during or after your car build date. If you PDC failed today, BMW would replace it with the latest version. Early versions are often out of production.
These part numbers are for the front/rear control module. I am aiming to install front/rear PDC but even if I wasn't, I'd still install a F/R module to give the option of upgrading later.
Date Range ... Part Number

Mar 11 - ... 66 20 9 252 638

Mar 10 – Dec 11 ... 66 20 9 225 824

Sep 07 – May 10 ... 66 20 6 982 403

Dec 06 – Jun 08 ... 66 20 6 982 396

Jun 06 – Oct 07 ... 66 20 6 982 388

I have looked at e-bay units. None are the latest. Many are listed from Lithuania and are so cheap, the source might be dubious.
e-bay UK used prices are about the same as new USA prices. The other problem is that swapping a faulty unit or trying to get a refund isn't really practical for me.
I am going for new OEM parts.

PDC Rear Retrofit Kit
Part Numbers are:

66 20 0 399 633 ... for E90 sedan, E91 estate Mar 05 -
66 20 0 418 636 ... for E92 coupe
66 20 0 428 637 ... for E93 convertible

Not valid for cars with the aerodynamics package or M sport package SA 337.

PDC Front Retrofit Kit
Part Number is:
66 20 0 399 629 ... for E90 sedan, E91 estate Mar 05 -

Not valid for cars with the aerodynamics package or M sport package SA 337.

Sensors
I intend to buy from Aliexpress. The latest versions are available for ~$25. Earlier versions ~$16, shipping included.
The latest part number appears to be: 66 20 6 956 746

Front Panel Switch Kit
Part Number 61 31 9 120 026


My car is RHD so I will post photos of the upgrade.