The K75 BMW is powered by a liquid-cooled, transversely installed DOHC 4-stroke inline engine. It has a near-square bore-stroke ratio of 67 x 70 mm (2.64 x 2.76 inches). Piston displacement is 740 cm3 (45.16 in3), while compression ratio is 11.0:1. Here is how to replace infamous coolant transfer pipe on BMW's V8 n62b44 and n62b48 using expandable replacement kit. The procedure is the same for following Socket set and ratchet. Step 1: Disconnect the battery. Disconnect the negative battery cable from the battery and set it aside. Step 2: Locate the valve. The location of the idle control valve will depend on the make and model of your vehicle. Your vehicle’s owner’s manual will have information on the exact location. HOW TO TEST COOLANT TEMPERATURE SENSOR. Any CarIn this video we will demonstrate how to test coolant temperature sensor on any car. All you are going to need Chances are you may have a leak if the low coolant warning light comes on. When the level falls below a critical amount of coolant in the radiator or Expans If your coolant is low, then it might be a sign of an underlying problem, and you need to bring your car to the automotive service center as soon as possible for an inspection and maintenance. The following are some of the reasons your vehicle might be low on coolant: leak in reservoir/overflow tank. leak in radiator. leak in radiator hoses. 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. Spread the love. Let the engine cool. Turn the lid of the coolant reservoir slightly. Open the coolant reservoir lid. The coolant level is correct if it lies be‐. Turn the lid of the coolant reservoir slightly. Open the coolant reservoir lid. If the coolant is low, slowly add coolant up. Close the cap. F30 N55 engine coolant temp sensor. Where is the coolant temperature sensor located on this engine? I've been having an issue with it lately, and after reading the codes myself and checking the hidden menu, it appears that sensor has gone bad. The temp reads -128C in the menu, and the fault code it throws is for an invalid signal. BMW E60 E61 COOLANT TEMPERATURE SENSOR LOCATION REPLACEMENT 523i 525i 528i 530i 535iIf you have BMW 5 series E60, E61 and you need to replace the coolant tem RDwraL.