IMO, just change the one that has the fault code thrown. The other ones can last anywhere from weeks to years longer. I don't often see veicles return too quickly for the other cam sensors. Although the newer sensors (from BMW) are an updated design from the original ones and seem to be better overall, and most cases with aftermarket sensors end up in re-replacement all too soon anyways.

If it were mine, I would replace the sensors with OEM ones as they go out.

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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is