DIY BMW 540I Thermostat?

Answer The thermostat on the BMW 540I allows water to stay in the engine when the engine is cold. Once the engine warms up to operating temperature, the thermostat opens and allows the water to flow from ... Read More »

Top Q&A For: DIY BMW 540I Thermostat

The Specifications for a 540i BMW?

The BMW 5-Series, which debuted in 1975, provides spacious comfort, stylish features and a variety of engine and transmission choices. According to the auto reviewers at Edmunds, the BMW 5-Series m... Read More »

How Do I Change Oil on 540i BMW?

Every BMW made needs regular oil changes to keep the engine reliably lubricated and to avoid problems down the road. Oil changes can be done by the dealer, an independent BMW shop or even at one of... Read More »

How Do I Check the Oil in a BMW 540i?

You should check the oil level in your BMW 540i every time you stop for gas or at least once a week. Monitoring the oil level regularly will help avoid potential damage to your engine due to low oi... Read More »

How to Charge the Battery in a BMW 540i?

A battery on a BMW 540i might need a charge for a variety of reasons. If the car has sat for a long time without being started, the battery will slowly discharge. Also, older batteries have trouble... Read More »