Update on BMW X5 35d problems: Battery and tires
Posted By RichC on March 1, 2017
Neither of the problems I’m having has anything to do with BMW X5 35d diesel brand since the battery and run-flat tires are both aftermarket items. The AGM replacement battery I installed last year is still hanging in there so long as the weather remains warm (cold cranking amps are sufficient), but it will not hold a full 850 CCA (some battery info). I’m waiting for a new Exide Edge Flat-Plate AGM battery to come off the production line as CARiD asked me to wait … we’ll see if it arrive mid-March as promised?
I’ve mentioned checking it out before, but now regularly charge and check it in the garage since I have a new Solar BA-9 tester. It consistently will read “Bad” if I don’t keep it on the charger … but still usually records a strong alternator charge and voltage of 12.50-ish VDC at rest and about 10 VDC under load — see how to do this with a basic multi-meter. After learning to use both, I’m not sure I would recommend spending anything on a battery tester (although wouldn’t mind a true load tester … the kind that heat up).
As for tires, after installing a old “less sticky” plug and still seeing a little air bubbling my “dish soap check,” I picked up some fresh ones at Walmart and added a little “goop” to help it seal. I’ll know more tomorrow if it holds air. Ha!
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