Engine overhear

mohamedn44 · 03-04-2018, 02:59 PM

Hey ,
I got a problem with my car , when I drive on a highway ( fast ) my car wont over heat , but in city driving ( slow ) my engine would over heat , and my water temp would go like 15-125 then ill get engine over hear ( and yea ofcouse i would stop )

why ?

cheers guys

jwalker87 · 03-04-2018, 03:08 PM

Codes? Warning lights? Losing any coolant? Sounds like a fan problem to me, given the highway vs city distinction.

opjose · 03-04-2018, 03:17 PM

Highway = more air cooling engine.

Do you hear the fan coming on when the car is at idle?

Is it loud?

Normally the fan spins somewhat slowly at idle once th car is wam, keeping the noise down.

If the fan turns it is time for a new pump and thermostat.

mohamedn44 · 03-04-2018, 03:25 PM

I didn't really pay attention to the fan , when should the fan come on? like at what point ?

opjose · 03-04-2018, 03:47 PM

The fan should engage well before you get the overheat message.

If it does not you may have a bad fan.

If it does, then pump and thermostat.

mohamedn44 · 03-04-2018, 03:53 PM

Thanks a-lot guys , ill check Tomorrow and let u know from where

mohamedn44 · 03-05-2018, 03:00 AM

Update :- yah i was the fan , somehow the fan cable was disconnected

Thanks guys

03-04-2018, 02:59 PM	#1
mohamedn44 New Member 5 Rep 29 Posts Drives: 335I-E92 Join Date: Feb 2018 Location: Toronto iTrader: (0)	Engine overhear Hey , I got a problem with my car , when I drive on a highway ( fast ) my car wont over heat , but in city driving ( slow ) my engine would over heat , and my water temp would go like 15-125 then ill get engine over hear ( and yea ofcouse i would stop ) why ? cheers guys
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03-04-2018, 03:08 PM	#2
jwalker87 Major 320 Rep 1,024 Posts Drives: '08 335i, '11 335xi, '01 Z3M Join Date: Jul 2010 Location: Pittsburgh, PA iTrader: (2)	Codes? Warning lights? Losing any coolant? Sounds like a fan problem to me, given the highway vs city distinction. __________________ 2001 e36/7 M Roadster 5spd 2008 e90 335i 6spd 2011 e90 335xi 6spd 2011 e70 x5 diesel 2010 Ducati Monster 696
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03-04-2018, 03:17 PM	#3
opjose Major 242 Rep 1,353 Posts Drives: 335xi Join Date: May 2016 Location: Md iTrader: (0)	Highway = more air cooling engine. Do you hear the fan coming on when the car is at idle? Is it loud? Normally the fan spins somewhat slowly at idle once th car is wam, keeping the noise down. If the fan turns it is time for a new pump and thermostat.
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03-04-2018, 03:25 PM	#4
mohamedn44 New Member 5 Rep 29 Posts Drives: 335I-E92 Join Date: Feb 2018 Location: Toronto iTrader: (0)	I didn't really pay attention to the fan , when should the fan come on? like at what point ?
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03-04-2018, 03:47 PM	#5
opjose Major 242 Rep 1,353 Posts Drives: 335xi Join Date: May 2016 Location: Md iTrader: (0)	The fan should engage well before you get the overheat message. If it does not you may have a bad fan. If it does, then pump and thermostat.
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03-04-2018, 03:53 PM	#6
mohamedn44 New Member 5 Rep 29 Posts Drives: 335I-E92 Join Date: Feb 2018 Location: Toronto iTrader: (0)	Thanks a-lot guys , ill check Tomorrow and let u know from where
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03-05-2018, 03:00 AM	#7
mohamedn44 New Member 5 Rep 29 Posts Drives: 335I-E92 Join Date: Feb 2018 Location: Toronto iTrader: (0)	Update :- yah i was the fan , somehow the fan cable was disconnected Thanks guys
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