Pelican Parts Technical Article Bmw X3 Engine Cooling Fan Replacement Like i stated in the title of this thread, i'm having an issue with coolant leaks on our 2007 bmw x3 3.0si with a t. our x3 has almost 190k on the odometer, so obviously things are getting old and dry rotted from so many heat cycles. here is a list of coolant system related items that have been replace. To troubleshoot: check computer for any set codes. unplug the fan connector and test for voltage on the two large wires. if there is no power check the fuse in the glove box. if you have an oscilloscope you can use that to easily determine if you have a pwm signal on the wire from the dme, if not continue reading.
2007 Bmw X3 Cooling Fan Relay Location Top 5 problems 1st gen bmw x3 (2003 to 2010) 1. bmw x3 cooling system problems symptoms of cooling system problems. coolant leaking near the driverside; engine overheating; check engine light is on; causes of cooling system problems. over time the plastic coolant reservoir can deteriorate and crack, causing coolant leaks near the driverside. 4. cooling system leaks. bmw x3s use a lot of plastic for its cooling system which can get brittle and fail with age. this is a common issue for pretty much every modern bmw made in the last 30 years so it’s not unique to the x3. some of the critical components you’ll want to keep an eye on include: hoses and pipes. 2022 bmw x3 key points. first generation x3s struggled with cooling system issues, a stiff ride, and various electrical issues. the second gen. also struggles with cooling system issues, as well as a problematic vanos system; third generation bmw x3s had issues with coolant leaks, gasket failure, and a start stop system that can be a bit jarring. Worst 2007 bmw x3 problems #1: oil leaks 2007 x3 average cost to fix: $1,400 average mileage: 96,000 mi. learn more #2: engine making noise 2007 x3 average cost to fix: $2,400 average mileage:.
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