How to reset the oil service reminder on a BMW 520i?

[FelicityFitz]

Insert the key into the slot, press it in, and then without pressing the brake pedal, press the START button. (At this point, the vehicle will display a series of warnings.) Pay attention to the dashboard display. Wait until all warnings stop, then press and hold the button on the left side of the dashboard. At this point, a maintenance reminder will appear in the center of the dashboard. Now, you can use the button on the right side of the dashboard to make a selection. After selecting the oil service item, press and hold the button on the right side of the dashboard. Turn the ignition to position 2, and simultaneously press and hold the BC and OK buttons on the steering wheel. Three maintenance intervals will appear on the dashboard; generally, select the second one and press the OK button.

[MayaFitz]

Oh, I know all about BMW oil leaks! Last month, my neighbor's 520i went through the same thing. First step is to crawl under the car and locate the leak: if it's just a loose oil pan drain plug, a wrench and 15 minutes will do the trick; if the rubber gasket is worn out, you'll need to buy an OEM seal ring to replace it. If you find the valve cover gasket is seeping oil, that's more troublesome—you'll have to dismantle a bunch of parts just to replace the gasket. The worst is if the oil pan is cracked from impact—then you'll need to call a tow truck to take it to the shop for welding. Whatever you do, don't randomly spray carburetor cleaner—it can corrode the wiring! I use engine bay-specific cleaning foam, spray it all over, wait 10 minutes, then gently scrub with a soft brush. When rinsing, remember to cover the battery with a plastic sheet.

[DelDelaney]

BMW oil leak is recommended to be handled in three steps: first, turn off the engine and let it cool for half an hour to prevent burns, then check the oil stain location with gloves on. If it's just the aging seal ring of the oil filter seat, buy an improved silicone ring for 30 yuan on Taobao and replace it yourself. Use kitchen paper to absorb the surface oil during cleaning, and apply a thick layer of no-rinse engine cleaning paste for stubborn stains. Pay special attention to whether the belt is contaminated with oil. If it is, it must be replaced immediately as slipping is very dangerous. After handling, remember to check again two days later, as oil seepage usually requires a second tightening.

[KathrynRose]

Anyone who has experienced oil leakage from a 520i knows how much of a headache it can be. Last time my car had a front crankshaft oil seal leak, and the engine oil was directly splashed onto the exhaust pipe, causing white smoke. Personal advice: Don't continue driving; have it towed to a repair shop to check the cylinder pressure. For minor leaks, you can use Liqui Moly engine stop leak as an emergency measure, but major leaks require replacing the seals. When cleaning, using WD-40 with a copper wire brush works wonders. Finally, make sure to thoroughly blow dry the wiring harness connectors with compressed air.

[Candice]

The 520i engine compartment features precise construction. Recommended procedure for oil leakage: Prepare automotive circuit protection spray and biodegradable cleaner. First check oil level - if below MIN mark, call for roadside assistance. During cleanup, remove engine cover and sprinkle baking soda on oil stains to neutralize acidity. Key inspection point: turbocharger oil return pipe connection (common BMW issue). After cleaning, mandatory replacement of air filter as oil vapor contaminates intake system.

[AbelMarie]

As a seasoned BMW owner with three models under my belt, oil leaks require case-by-case diagnosis: Cold-start leaks indicate valve cover gasket thermal deformation, while driving leaks likely point to oil pan impact damage. For DIY repairs, prepare an oil drip tray and torque wrench – incorrect bolt tightening sequence worsens leaks. Use 3M08984 orange cleaner for maintenance, applying hot towels for ten minutes on stubborn stains. Critical note: Oil-soaked alternator belts must be replaced immediately! Finish with circuit protector spray against corrosion.