Quote:
Originally Posted by jing
Apologies ahead of time for the vertical video, but a relative of ours may be trading in their 2011 E93 335i as it started making a weird sound in the engine bay. The dealer SA couldn't determine the issue without additional diagnostic charges but had told them that 3 temp sensors aren't getting any readings. I don't know anything about these cars but I would think that this sound and the sensors are separate issues? We may take the car off their hands if it isn't a serious issue; my E36M ownership has been pleasant so far so the thought of another BMW doesn't scare me quiet yet. Anyone have any thoughts on what could be causing this sound? I'm thinking belts or pulleys? The water pump was changed recently for about $2k, I'm assuming thermostat(s) were also done but I haven't seen the invoice.
https://youtu.be/1yHcOk-3qr0
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What Civic said.
Also this car looks like it is 10 seconds away from the serpentine belt coming off given the huge amount of oil leaking and possibly being sucked into the engine. This car should be taken off the road before more damage is caused.
I know you also mentioned you are not afraid of owning a BMW, but if you have to ask, chances are you dont realize the the noise may be the least of your concerns on this car...
A shop/ dealership, will charge you around 4-20k to fix the entire mess the right way.
Try this water bottle method, spray some water on the pulley to see, if the squeak/chrip goes away and get back to us. You don't need to remove any plastics or parts, you should see the exposed pulley from the driver's side of the engine bay.