Hello dear Volvo community, after having been able to sing praise songs for quite a while on the indestructibility of the V70 family, my voice suddenly stopped yesterday when the immobilizer suddenly showed activity at the start. In other words… start engine…. jumps into usual mania immediately … and… goes out immediately again!! (typical immobilizer). After 2-3 tests, which always ended immediately, I took the spare key and tried the start process with this key ..u nd …. look at this key, the engine stayed on!! What was that? Can such a “displacement lock sensor” break in the key? Background (which may be useful): I have problems with the mechanics of the ignition lock (keys sometimes go quite hard in). Therefore, a key always stuck in the ignition lock with me, in order to spare just this mechanics and the second key we used to open and close the door. This also works for about a year very g ut. This means that the key that suddenly failed yesterday (or the “reminder sensor” for a year was constantly in close proximity to the antenna ring of the immobilizer at the ignition lock. But to construct a reason for this error, I can’t imagine. But why does the second key, which otherwise is always in my pocket ?? Maybe one of you can help me further….I’m honestly perplexed… and that after 400tkm with my (otherwise t t.) Reuem) old crooks. a salmon in Hesse P.S. by the way, both are pure mech. keys, without electric door opener or anything….