When I fitted the new relays the other week I noticed the battery looked like the original BMW fitment from 2012. However, I'd not had any issues and the roof had been operating from the key without issue.
However last week I had the stop start warning light come on (even though i always have it turned off) and I also had one instance of the theft alarm going off.
So I took the battery to be load tested and the results confirmed it was only producing 260A compared to the original 760A.
I ordered a replacement from Tayna which turned out to be exactly the same size so fitment was straightforward and I was suprised how clean the battery compartment was with zero signs of any water ingress - so just a quick hoover and registered using the Creator 310+. Job done
However last week I had the stop start warning light come on (even though i always have it turned off) and I also had one instance of the theft alarm going off.
So I took the battery to be load tested and the results confirmed it was only producing 260A compared to the original 760A.
I ordered a replacement from Tayna which turned out to be exactly the same size so fitment was straightforward and I was suprised how clean the battery compartment was with zero signs of any water ingress - so just a quick hoover and registered using the Creator 310+. Job done