[Nezil]

So I've done a bit more digging in response to this comment:

Originally Posted by dtmurf

Any issues with Comfort Access (and associated features) after install?

And the fact that the eBay parts listing states this:

2011-2015 740i
Note: Only for cars with Soft Close Automatic Doors S323A. Not for cars with Thief Proofing Device S8TGA, Alarm System S302A or Comfort Access S322A.

My car, and I think all US cars have S322A (comfort access) and S302A (alarm system) as standard, but I've had no issues since I installed my comfort close lock and I've not read about any issues either.

The Bimmertech site sells a comfort access retrofit kit, and this doesn't include replacement locks.... so what exactly is incompatible with the locks from eBay?

Next I took a look at RealOEM for my car, and can see that there are two versions of the lock

• 51217202143 for vehicles with S302A (alarm system) or S8TGA (deadlocks)
• 51217229461 for vehicles without S302A (alarm system) or S8TGA (deadlocks)

I can conclude then that the locks I had as stock support deadlocking even though my car does not have S8TGA listed in any VIN decoder. I believe therefore that deadlocking is dependent only on coding, or on coding + wiring from the front electronic module (FEM).

Again on RealOEM, I this time looked for the lock options on the 740i. This time there are three options:

• 51217202143 for vehicles with S302A (alarm system) or S8TGA (deadlocks) but not S323A (soft close) - [same part as my M2 stock]
• 51217229461 for vehicles without S302A (alarm system) or S8TGA (deadlocks) or S323A (soft close)
• 51217185689 for vehicles with S323A (soft close) and any other options [What I'm fitting]

First off then, on both cars, there appears to be no different part based on S322A (comfort access). It is remotely possible based on what the eBay post says, that the part they're selling would support only S323A (soft close) and not S302A (alarm system), and while according to RealOEM you could have specified a 740i that way, BMW's part for soft close supports everything else.

What I suspect to be the case, is that the description on the eBay post should say is:

Note: Only for cars with Soft Close Automatic Doors S323A. Not for cars with only Thief Proofing Device S8TGA, Alarm System S302A or Comfort Access S322A.

A single word can make all the difference, but in any case I should know soon once my part arrives.

I'm tempted to see if it's possible to code deadlocking if my locks support it!