The iconic BMW 7 Series E23, cherished from 1977 to 1986, holds a special allure for Kiwi car lovers. This classic luxury sedan brought forth cutting-edge features and unmatched performance, making it a staple of refined taste in New Zealand. However, to keep this masterpiece performing at its best, understanding the vehicle's maintenance requirements and addressing common challenges is key to ensuring a smooth ride on Kiwi roads.
Rust is a major concern, especially in the wheel arches, sills, and around window seals. The fuel injection systems can be problematic, often requiring specialist tuning. The automatic transmissions, while generally reliable, may need attention after years of service. Electrical issues are also common in older vehicles.
Rust, particularly structural rust, is a primary focus for WOF inspectors. Suspension components, brake lines, and tyre condition are vital. Ensure all lights function correctly and that the windscreen is free of cracks. Check exhaust for leaks or serious corrosion.
The E23 733i showcases a range of inline-six engines that harmonize performance with refinement, evolving over its production life. Owners appreciate features such as advanced climate control, power windows, and a sophisticated suspension system, all designed to elevate the driving experience. However, the local conditions necessitate regular maintenance to fend off common issues, especially as the vehicle ages. Notably, the cooling system requires attention around 150,000km, where you should inspect components such as the water pump, thermostat, and radiator hoses to avoid overheating. [This naturally links to /shop/cooling]
Rust is a persistent issue to watch for, particularly in wheel arches and sills, emphasizing the need for regular checks and repairs. Additionally, the fuel injection system, known for its quirks, might demand specialist tuning to keep it in perfect harmony. Your 733i's braking system should also be assessed regularly, featuring our front and rear brake services to ensure your stopping power is as advanced as the vehicle itself. If you're in need of replacement parts, explore our Braking category for essential components to keep your brakes in peak condition. Lastly, keeping your filters, including air and oil, fresh ensures the longevity and performance of this legendary sedan; take a look at our Filtration category for more details.