2019 BMW ALPINA B7 Bulb Size

When I first looked up bulb sizes for my 2019 BMW Alpina B7, I felt lost in codes and abbreviations. Think of it as building a simple mental model: each line on this list ties a lamp location (headlight, fog, turn signal) to the corresponding bulb code and typical wattage. That starting point gives you a quick win—identify the right part number before you shop. As I expanded use, I learned a helpful rule of thumb: match the code exactly and check fit visually. The list grows to include common replacements and notes on brighter or longer-life options so you can choose confidently. A quick recap and note on transparency: some links lead to products I recommend, and I may earn a small commission if you buy through them. This doesn’t increase your price; it helps me keep the guide updated.