4. Locate the Drain Plug and Loosen. Locate the drain plug. This is found on the bottom of the radiator. Place a pan under the drain plug to catch old coolant. Loosen the drain plug and allow coolant to flow. Tighten the drain plug when coolant has stopped flowing. 5. Fill the Cooling System with Distilled Water.
In addition to the maintenance service procedure information contained in this booklet, BMW recommends that you regularly check (when refueling, for example), and address when necessary, the following items: Washer fluid level Engine oil level Coolant level Brake fluid level Tires — pressure, condition and wear.
BMW E90 models utilize an engine coolant temperature sensor and an engine oil pressure switch. The sensors can fail electrically, a fault code will be stored
3465 posts · Joined 2021. #15 · Jul 3, 2021. You can’t replace just 1 line as they new style is metal compared to plastic and have different design/routing. The job is expensive due to labor. BMW repair instructions require removal of both turbos to do the job. Your low coolant warning is not related to these lines.
The BMW cooling system on their 8-cylinder engine uses cooling pipes underneath the intake manifold to return coolant from the back of the block. This involves a manifold and two cooling pipes leading from the rear coolant manifold to the water pump. Below these coolant pipes is a coolant passage in the valley of the block.
Coolant & Antifreeze. The quality of your BMW coolant is vital not only for keeping engine temperatures in check but also for lubricating the water pump, protecting against corrosion and build-up, anti-freeze in winter months, and assist in cooling for engine and transmission oil coolers on some models. BMWs have specific coolant requirements
. 390 27 7 257 376 94 171 343 230
bmw 750 engine coolant location
