If you can remove the module yourself (lots of DIY here on this - 1 connector and ~6 torx head screws once you remove the left side headlight assembly for access), you can try to get it repaired through one of those services. If that works, it will run you about $100 for repair and not need recoding. I wouldn't replace any more sensors until you have tried this.

When I sent mine in, they told me it was not repairable. Having not done my homework, I bought a used one on ebay and sent it in for the module place to check and rebuild. They passed it, but it never worked on my car. There are many different Bosch modules - you should record the specific version you have when you remove it from your car - they thought it was an incompatibility between the used one and my car. I have no way of knowing...

I ended up finding a brand new module from a Bosch distributor for about $350 (wish I had started with this approach and not the ebay unit). I had an indy shop code it to my car for about $100. If you call around, they can tell you on the phone if they have this capability.

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David.X5
2001 X5 4.4i Sport
SOLD! at 160k miles