Although, the BMW's products adorers may up to date their BMW vehicle either by directly contacting to the dealer by which they purchased the vehicle or from many other dedicated OEM (Original Equipment Manufacturer) retailers are available in the local markets all over the world. It is up to you and your interest whether you compromise with original (new branded or fresh) BMW spare parts and accessories or rely upon used, cheap, or discounted BMW spare parts and accessories. I'm of the view that it would not be looked pretty and sensible if you go for unoriginal BMW spare parts and other accessories as keeping and maintaining such highest class and luxurious vehicles.
If you are in position to retain such vehicles then please never compromise with used, cheapest, or discounted BMW spare parts and its other accessories otherwise it reflects a bad and meager impression on others from your mind-set. If your BMW vehicle is branded new then always prefer to make choice of branded new BMW spare parts and its accessories. Similarly, if your BMW vehicle is taken up as a used or second hand then you may go for used, cheapest, or discounted BMW spare parts and its other accessories. It is a general consensus and astuteness.
When you use vehicles it gets rough due to consumption and combustion by the passage of time with its utilization then vehicle's parts will be not in position to give you that performance as was at the first drive or at initial period, therefore, it becomes necessary to get check your vehicle performance from the dealer's mechanics and if any part has to be changed or repair work then let them to make your vehicle up to date.
BMW is a deluxe trademark and benchmark prevalent and rampant worldwide, therefore, its spare parts and other its accessories are available all over the world. Many websites are now trying to facilitate by providing easy approach of online shopping to select the part and any other needed accessory and book that one by ordering. If you have PayPal, Visa Credit Card, MasterCard, or any which is acceptable to the concerned online dealer then you may order and the required spare part or accessory will be at your doorstep timely with both options (free home delivery or with a tad fee). It is now very easy in 21st Century by having such astounding latest technologies like computer, internet, and online shopping facility with your PayPal account, Visa Card, MasterCard, or any valid and acceptable card.