Figure 1 When pressure testing a cooling system, be sure that the vehicle is cool and lacks pressure. Then, remove the coolant expansion tank cap. Figure 2 Once the cap is removed, install the pressure tester adapter (green arrow) to the coolant expansion tank. Figure 3 Pressurize the system to 1.5 bar (21.8 psi).
346 posts · Joined 2011. #3 · Apr 25, 2011. Sounds like your IDrive screen and controller. Common problem in E60. Dealer job for this I am afraid. I hope its still under warranty as they can be expensive, about €1500 I m told. 11 F10 520 D M Sport. 09 E60 520 D M Sport (Sold) 09 E90 320 D M Sport (Sold)
Best case - a faulty oil pressure sensor, triggering a bogus warning. An easy and inexpensive thing to fix. Worst case - a failing oil pump which could toast your engine if you continue driving it that way. Low oil pressure may get sufficient oil to the main bearings and pistons (lower half of the engine) to allow them to operate ok, but the
The post-LCI 525i, 528i, and 530i, powered by the N52, are also not as prone to problems. It’s the larger V8 engines that were having the most issues. They make a lot more power than the inline-six engines on the E60 cars, but keeping them running can be pretty demanding and not to mention expensive. BMW E60 Common Problems
1)Mirrors fold out on lock/ in on unlock. 2)Tpms reciever wont read. replace wont read eventually just starts working. again. 3)Random ac fault codes,can bus errors, failed jbe box errors. 4)02 sensors after going ceramic coated catless intermittently read max. 5)Replaced and checked mating surface for clean ground.
The most common causes for AC blowing hot air in BMW 5 Series are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube
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