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Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 24440
Experience:  BMW Expert
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I have a 528 series, 320k mls. The viscous fan will not

Resolved Question:

I have a 528 series, 320k mls.
The viscous fan will not switch off. On garage recommendation to fix the problem (two different garages) it has been replaced twice in eighteen months, what is the answer please.
When should the shocks be changed, they have the originals at present.
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
What year is the car?
Customer: replied 1 year ago.
S reg 1998
Expert:  Steve replied 1 year ago.

when you say the fan will not shut off, can you please elaborate? what exactly does it do?

Customer: replied 1 year ago.
When the latest new fan was fitted three weeks ago the fan did not run when the engine was started, however the mechanic called me to say said it came on after 5 mins and just keeps running with the engine on, he phoned a colleague for help/ideas but to no avail saying he could only think this is caused by the hot weather. The fan stays on in the winter.
Expert:  Steve replied 1 year ago.

I will provide an honest answer. I trust this will be appreciated. Please remember that a low rating PUNISHES me for being honest and that I receive nothing for my time until a positive rating is clicked.
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Thank you for your attention to the rating requirement.
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the fan is mechanical and only engages once a certain temperature is reached. If you are not using genuine BMW OEM parts then I would suggest you try an OEM BMW unit. If the problem persists then it can only be that the car is running at a temperature that the fan is intended to engage at.

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Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.

Customer: replied 1 year ago.
I do not believe you have replied to my last question which was a response to yours asking me for more detail.
Expert:  Steve replied 1 year ago.

what question was that? this is what was posted: "When the latest new fan was fitted three weeks ago the fan did not run when the engine was started, however the mechanic called me to say said it came on after 5 mins and just keeps running with the engine on, he phoned a colleague for help/ideas but to no avail saying he could only think this is caused by the hot weather. The fan stays on in the winter. " - I am not sure what the question is?

Customer: replied 1 year ago.
Ok, Think I found your answer.You say insure a genuine BMW part is fitted, is that correct ?
Expert:  Steve replied 1 year ago.

Please do not forget to CLICK ON a positive rating. yes. if it is, then it is working properly in response to temperature. if it is not, get a proper BMW part installed. Please do not forget to CLICK ON a positive rating

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