I know BMW recommends Castrol so was thinking of Castrol Edge as its fully synthetic

What grade should I use?

Alternative is to use Mobile1

 

Castrol EDGE TURBO DIESEL 0W-30.

 

Mobil 1 says many tests.

Castrol is OK though.

As long as the oils are LL-ones and BMW approved.

See your cars manual or contact your local BMW service.

If you changing the oil and the oil filter and other filters yourself,
how are you going to reset the iDrive?

 

Will reset iDrive with my Carsoft software and lead

 

I use mobil 1 from costco. No problems

 

That's very simple:


1. Switch the ignition on (so that the battery, Oil and Parking brake lights are displayed) and the key is ready to start the engine - but don't actually start the car.

2. Press the odometer reset button for between 5 and 10 seconds until a yellow triangle with an exclamation mark in the centre appears in the top window between the clocks (where the outside temperature / time or date normally appears) - this is the "Service" icon.

3. Release the odometer button briefly and press again straight away which brings up a picture of the Brake Fluid symbol (same as the one that the i-drive shows when you look at the Service menu).

4. If you want to reset the Brake Fluid interval for another 2 years then keep holding the odometer button until the word "RESET?" appears at the bottom of the lower window.

5. Release the button briefly and push it in again and hold for about 5 - 10 seconds until the new date appears in the bottom window. You can then switch the ignition off and the new Brake Fluid date will appear in the service menu on the i-drive screen next time you switch on.

6. If you want to reset the Oil, Microfilter or Brake Pad indicators then you will need to follow the same sequence as steps 1 and 2 above, but when you get to step 3 and the brake Fluid icon appears, just release the button and press again and the next service item will appear.

7. You can continue releasing and pressing the button until the required service item icon appears for the one you want to reset. As soon as it does then hold in the button in until the word "RESET?" appears again as in step 4 above. Once the word "RESET?" has appeared, you need to release the button briefly and hold it in again for about 5 - 10 seconds until it is replaced by the new service interval figure (as per step 5 above).