New Thermostats and what happens afterwards....
#11
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My Ride: E60 530d
Is that a steady 90c, no matter what? Mine currently settles at 83/84c and I'm debating whether I should change the main one as well...
Also, theo, what year e60 do you have?
#12
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My Ride: 07 E61 530d M-Sport.
They are the same temps as mine was. I would try the EGR first as mine was wide open. My temps now sit between 90 and 94 all the time.
#13
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My Ride: 2004 E61 530D - Dynamic Drive - Active Front Steering Sport Seats - Voice Control - Head Up Display - Nav Pro - Bluetooth - Panoramic roof - Front/rear heated seats
The temperature moves within a range from 88 to 92 when it has reached its operating temperature, 88 on constant high speed (lots of air cooling) and up to 92 when stationary in traffic after higher speeds.
I would replace it within the coming months, your fuel efficiency is probably not suffering yet but DPF regeneration might. And in any case, these thermostats do deteriorate over time. Yours is on its way so it's only postponing the inevitable.
#15
'04 530d.
The temperature moves within a range from 88 to 92 when it has reached its operating temperature, 88 on constant high speed (lots of air cooling) and up to 92 when stationary in traffic after higher speeds.
I would replace it within the coming months, your fuel efficiency is probably not suffering yet but DPF regeneration might. And in any case, these thermostats do deteriorate over time. Yours is on its way so it's only postponing the inevitable.
The temperature moves within a range from 88 to 92 when it has reached its operating temperature, 88 on constant high speed (lots of air cooling) and up to 92 when stationary in traffic after higher speeds.
I would replace it within the coming months, your fuel efficiency is probably not suffering yet but DPF regeneration might. And in any case, these thermostats do deteriorate over time. Yours is on its way so it's only postponing the inevitable.
#16
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My Ride: F11 535i M-Sport,, Silver, Black Leather, LED Adaptive headlights
Model Year: 2015
Engine: N55
In terms of Mpg, a lot depends on your mileage, an extra 3-4mpg will save you money, but the cost of replacing the thermostats can be quite high.
In terms of this alone you need to balance how long it will take the increased mpg to pay back the cost of the fix.
In terms of this alone you need to balance how long it will take the increased mpg to pay back the cost of the fix.
#17
You would really only see a significant increase in MPG after changing the T stat if the check engine light was on. When the check engine light is on, the computer is programmed to run on 1 set of operating values, thereby not constantly changing the operating values based on a variety of conditions to optimize fuel consumption.
#18
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My Ride: M3 ZCP EX:2005 BMW 535D Sport, Estate, Steptronic, Carbon Black, Black Dakota leather, Head up Display, Profi Satnav, Bluetooth - only MULF module, Bi-xenon adaptive headlights, Sportseats, Cruise control, Active steeringMods: 19
Model Year: 2011
I have changed my thermostats twice. Really both of them twice and I still can't reach the correct temperature. But there seems to be different modes to it:
When I start the car first thing in the morning and drive the car for example 30 minutes, let?s say 20 miles without any traffic I can get about 80?C as a maximum and I can?t really feel worm in the car.
If I stop for a coffee or some shopping, than the car is reaching 90?C without any problem and you can feel really worm, even I would say hot, than I need to change the setting of the knobs to maximum cooling.
If I?m in the traffic, and my A/C is off (does not matter summer or winter) the temperature is going up to 97?C and then it drops and it is between 87-94?C.
And as I said, I have changed both thermostats twice and it seems to be almost same.
When I start the car first thing in the morning and drive the car for example 30 minutes, let?s say 20 miles without any traffic I can get about 80?C as a maximum and I can?t really feel worm in the car.
If I stop for a coffee or some shopping, than the car is reaching 90?C without any problem and you can feel really worm, even I would say hot, than I need to change the setting of the knobs to maximum cooling.
If I?m in the traffic, and my A/C is off (does not matter summer or winter) the temperature is going up to 97?C and then it drops and it is between 87-94?C.
And as I said, I have changed both thermostats twice and it seems to be almost same.
#19
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My Ride: 2004 E61 530D - Dynamic Drive - Active Front Steering Sport Seats - Voice Control - Head Up Display - Nav Pro - Bluetooth - Panoramic roof - Front/rear heated seats
#20
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My Ride: 07 E61 530d M-Sport.
You would really only see a significant increase in MPG after changing the T stat if the check engine light was on. When the check engine light is on, the computer is programmed to run on 1 set of operating values, thereby not constantly changing the operating values based on a variety of conditions to optimize fuel consumption.