BMW 545i Questions

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I have a 2005 BMW 545i that has been sitting in storage for two years. It has been fine the last 3 months I’ve had it out but just started to do this. When taking off fast it feels and sounds like the axle is about to bust apart. It shakes violently until I take my foot off the gas. It only does it sometimes as of now but would like to find out what’s wrong before it becomes major. Could it be low on fluid in the pumpkin? It’s err wheel drive. Thank you
Don't know where the dipstick for the transmission or where to add some more if I needed to
Sometimes car just cranks over will not start right away thenn starts and on screen will say transmission malfunction then let car sit for little bit the car starts right up and the transmission fault is gone
I own a 2005 bmw 545i with a smg transmission. The car starts up fine everything it’s in mint condition. But one day I went to srice the car put the e-brake down and put it in reverse and the car stayed in neutral. You can throw from reverse to drive and car Dosent move. On the screen it says transmission malfunction reverse neutral and gears 1-3 avalaiable but car stays in neutral . I had a mechanic come and plug it in and it ran codes saying it was the hydraulic pump. Is that what it sounds like it could be?? Thank you
I replaced my brake booster on my545i and the brakes are still stiff I bled the brakes and there is no leak from the master cylinder. Someone tell me what else can be wrong or what can I do to fix this
The car is hiccuping and lunging sometimes.
What type of transmission fluid should I use?
Code P1400 and P1405 and the solution to fix it.
Was wanting to find out what might be causing the stereo to have no sound also the doors or seat belt warning don't ding
I do not here fuel pump running. and will not start...battery went dead afterwards ran but very bad, now will not run at all is it sleep due to security system or what?
Why can they fix how much will it cost
I hear a metallic dinging noise coming from beneath the car when pulling away from a stop. Noise is not lot but seems to be coming from underneath car by manual shift. Could it be clutch or dive shaft?
These issues are constant anytime I attempt to use voice commands to access these systems. Service info system is grayed out and inaccessible. Guidance system does not announce street names.
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