X5 Diesel Battery

[AzNMpower32]

Sometimes, parts are just faulty. Is the vehicle equipped with Comfort Access? Although I've had no problems with our 325i (with the option), the dealer claims that their CA-equipped cars tend to run low on battery and discharge.

[gatorgirl]

Originally Posted by Craig

I keep a battery tender on mine when it's parked in my garage. I've never had any battery problems. I also drive mine on a lot of short trips as well...

Craig

I had to get a tender installed on mine as well. No more problems.

[jeffrey yap]

Sorry but what is a battery tender and how does one obtain one? By the way, my car is now at BMW and word is that they have to change the alternator and have to get t from Germany. I thought the cars were made in the States !

[jwscfa]

My 35d has Comfort Access and to date has had no problems. One thing to remember with this system is when shutting down hit the "Start/Stop" button twice to completely shut down the car. This is not mentioned in the manual or by the dealer rep when I took delivery.

[jeffrey yap]

Great. I thought holding down until even the BMW logo goes off in the lcd panel is sufficient to shut down.So, I will step on the brake, hit the start stop button once, then hit the button again ..wont that start the car again?

[jwscfa]

I was worried about the Comfort Access completely shutting down the car if I just hit the button once. I did the same thing (restarting the car with foot on the brake) until I learned to keep my foot off the brake pedal. Do not touch the brake pedal during shutdown and hit the button twice and the car will completely shut down.

[jeffrey yap]

Thanks. Will try it !

[Craig]

Originally Posted by jeffrey yap

Sorry but what is a battery tender and how does one obtain one? By the way, my car is now at BMW and word is that they have to change the alternator and have to get t from Germany. I thought the cars were made in the States !

Jeffrey, it keeps the battery charged and keeps it on a float charge. When the battery needs to be charged it comes on and shuts off when it's charged.

Batterytender.com - Home of All Your Charging Needs

Craig

[jeffrey yap]

Thanks for the info. I will inform all of you what BMW does to rectify the problem. I cant believe that BMW could make a design error with something as basic as the battery especially when they are the pioneers of electronics in cars.
I will try the method of shutting down the engine by pressing the switch twice which sounds logical for the comfort package.

[Craig]

Originally Posted by jeffrey yap

Thanks for the info. I will inform all of you what BMW does to rectify the problem. I cant believe that BMW could make a design error with something as basic as the battery especially when they are the pioneers of electronics in cars.
I will try the method of shutting down the engine by pressing the switch twice which sounds logical for the comfort package.

The BMW dealer should also have a battery tender for sale in the parts dept. I think the car will shut down in 15-20 minutes even if you don't hit the button twice. I always push it twice when I leave my car.

Please let us know what the dealer says...

Craig