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Remote locking/unlocking problem - '05 R53

1K views 5 replies 2 participants last post by  SeanC 
#1 ·
Hi,

the remote lock/unlock on my 2005 Cooper S is intermittent. It's a facelift model with the 3 button remote (non replaceable battery).

So far, I've opened the key up and put a multi-meter on the battery, it's reading 3.3v - a good charge. I've also removed the rear-view mirror and checked the receiver PCB in there - all good, no corrosion or dry solders.

Does anyone have any ideas on what to check next?
 
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