S63 AMG, S63 AMG 4Matic, S65 AMG (W222, V222) 2014 -2021

S 63 2014 Fan run in Max speed all time

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Old Nov 21, 2022 | 02:13 AM
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ziadmohamed's Avatar
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W 204 / C 280
S 63 2014 Fan run in Max speed all time

Dears, please help
I purchased S 63 2014 and I found the cooling fan run all time in max speed after start the engine immediately even if the car is very cooled and with and without AC and after the car switch off the fan keep running for 1 min in max speed
i sent the car to workshop and he did diagnostic and he tolled me that the fan need to replace as the computer doesn't see the fan also he tolled me to change switchover valve as he has fault too

please if anyone has the same issue before or know how i can fix it.

thank you

Last edited by ziadmohamed; Nov 25, 2022 at 01:00 AM. Reason: Update
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Old Nov 22, 2022 | 08:01 AM
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S63 AMG, GL63 AMG
I have a Mid City remote start on my S63 2014 that runs the fan at full speed before handoff. So the speed is definitely computer-controlled. Maybe try reseating the connectors first?
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Old Nov 25, 2022 | 01:03 AM
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ziadmohamed's Avatar
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W 204 / C 280
Originally Posted by ziadmohamed
Dears, please help
I purchased S 63 2014 and I found the cooling fan run all time in max speed after start the engine immediately even if the car is very cooled and with and without AC and after the car switch off the fan keep running for 1 min in max speed
i sent the car to workshop and he did diagnostic and he tolled me that the fan need to replace as the computer doesn't see the fan also he tolled me to change switchover valve as he has fault too

please if anyone has the same issue before or know how i can fix it.

Update:
the Dealer fixed the issue and he found the coolant pump low temperature not working and he replaced it.
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