[F36 435d]

Hi,

Previously i owned a 2013 F10 535d 313ps. I now own a 2015 F36 435d 313ps.
The same engine right ?

How come the 435d takes so much longer to get up to 100 degrees operating temperature than my 535d did. After my 10 mile journey to work the engine still sometimes fully isnt up to temperature, when in my 535d after 5 miles it would be up to temperature.

I have noticed the 435d doesn't have flaps behind the grille like the 535d did, could this be the reason why ?

Thanks

[Ti Rich]

Yes without a doubt those flaps will make a big difference in the colder weather. My 330d takes an age to warm up too.

[Rich9600]

Originally Posted by Ti Rich

Yes without a doubt those flaps will make a big difference in the colder weather. My 330d takes an age to warm up too.

I had the flaps on my E90 320d and thought they were a great idea. I don't know why they weren't carried across to the F3X.

My F30 330d took my entire 12 mile commute to hit operating temperature. The E90 had no temperature gauge, so it's hard to tell if the engine size and flaps made a difference. However, my B58 340i with its redesigned cooling loop warms up much quicker than the N57 diesel unit.

Granted Petrol units always warm up quicker. However, my outbound commute at urban speeds isn't significantly quicker. I think both units don't develop much heat at very low loads. On my homeward trip where the national speed limit section is much earlier the Petrol warms up about 5 miles before the diesel did.

I think the diesel unit uses its surge of low down torque so effectively that it doesn't do enough work to warm through.

For the Same unit in a 4 vs a 5 it will do even less work moving the smaller lighter car. Combined with the absence of flaps and you get a longer warm up time.

[4WDriver]

Hi
I'm not sure about the 535d but the F series 335d gauge shows oil temperature not coolant. The block gets warm very very quickly for a diesel.

You can be geeky like I did when I first got it and stop to check the top hose (I didn't see the oil can on the gauge) but also on cold days you can see the oil temperature stagnate and even drop a little after about 4-5 miles as valves open. That is when it is warm.

[teaston]

Originally Posted by Rich9600

I had the flaps on my E90 320d and thought they were a great idea. I don't know why they weren't carried across to the F3X.

My F30 330d took my entire 12 mile commute to hit operating temperature. The E90 had no temperature gauge, so it's hard to tell if the engine size and flaps made a difference. However, my B58 340i with its redesigned cooling loop warms up much quicker than the N57 diesel unit.

Granted Petrol units always warm up quicker. However, my outbound commute at urban speeds isn't significantly quicker. I think both units don't develop much heat at very low loads. On my homeward trip where the national speed limit section is much earlier the Petrol warms up about 5 miles before the diesel did.

I think the diesel unit uses its surge of low down torque so effectively that it doesn't do enough work to warm through.

For the Same unit in a 4 vs a 5 it will do even less work moving the smaller lighter car. Combined with the absence of flaps and you get a longer warm up time.

That is strange, my E90 320d didn't have the flaps, and every photo of E90's I can find also don't have them!?

[vadimo]

I have noticed that my 320d will take time to warm up and also very quick at loosing heat for instance parking to do 30 mins shopping

[Rich9600]

Originally Posted by teaston

That is strange, my E90 320d didn't have the flaps, and every photo of E90's I can find also don't have them!?

My E90 was a 2009 N47(?) LCI model. I think these all did.

[F30Andy]

Originally Posted by F36 435d

Hi,

Previously i owned a 2013 F10 535d 313ps. I now own a 2015 F36 435d 313ps.
The same engine right ?

How come the 435d takes so much longer to get up to 100 degrees operating temperature than my 535d did. After my 10 mile journey to work the engine still sometimes fully isnt up to temperature, when in my 535d after 5 miles it would be up to temperature.

I have noticed the 435d doesn't have flaps behind the grille like the 535d did, could this be the reason why ?

Thanks

I am so glad you have posted this. I was about to post one which is basically the same.

My 330d (Sdrive) used to take at least 7 - 10 miles for the needle to say the oil was up to temperature. (No flaps I believe)

I have another 330d (X-Drive) on the fleet which also takes 7 to 10 miles. (No flaps again)

I have a F34 (35d XDrive) on the fleet which also takes 7 to 10 miles. (Has the flaps iirc)

As for the F06 4d. Now for some strange reason this thing is up to operating temp within 2 - 3 miles. (Has flaps)

Today was the first day since xmas eve that I had driven the F06. It was
also -1c outside.
Like clockwork the thing was supposedly up to operating temp within 3 miles.

I'm half tempted to do an oil and filter change just to see if there was some dud oil out of the factory and log a job with BMW but thought I would see what you guys have to say about it first.

TIA

[Rich9600]

Originally Posted by teaston

That is strange, my E90 320d didn't have the flaps, and every photo of E90's I can find also don't have them!?

Picture.

Zoom in and you can see the flaps.

[NotGotABimmer23]

My 335d takes pretty much my entire 13mile commute to get up to 100.

I try not to push it too hard until it gets there but is this required or am I being overly protective?

[F30Andy]

Originally Posted by kylemacca01

My 335d takes pretty much my entire 13mile commute to get up to 100.

I try not to push it too hard until it gets there but is this required or am I being overly protective?

No I do exactly the same.

Still does not explain why the F06 heats up so quickly.

[Scottiedog]

Originally Posted by teaston

That is strange, my E90 320d didn't have the flaps, and every photo of E90's I can find also don't have them!?

Was yours an m sport? If so it didn't have flaps but SE did for some wired reason. In the E91 brochure iv got it actually stated m sports don't have active aerodynamics? Can't for the life of me figure out why this would be!

[Scottiedog]

Originally Posted by F30Andy

I am so glad you have posted this. I was about to post one which is basically the same.

My 330d (Sdrive) used to take at least 7 - 10 miles for the needle to say the oil was up to temperature. (No flaps I believe)

I have another 330d (X-Drive) on the fleet which also takes 7 to 10 miles. (No flaps again)

I have a F34 (35d XDrive) on the fleet which also takes 7 to 10 miles. (Has the flaps iirc)

As for the F06 4d. Now for some strange reason this thing is up to operating temp within 2 - 3 miles. (Has flaps)

Today was the first day since xmas eve that I had driven the F06. It was
also -1c outside.
Like clockwork the thing was supposedly up to operating temp within 3 miles.

I'm half tempted to do an oil and filter change just to see if there was some dud oil out of the factory and log a job with BMW but thought I would see what you guys have to say about it first.

TIA

Has the f06 got a coolant gauge or oil gauge?

[4WDriver]

Originally Posted by F30Andy

As for the F06 4d. Now for some strange reason this thing is up to operating temp within 2 - 3 miles. (Has flaps)

Today was the first day since xmas eve that I had driven the F06. It was
also -1c outside.
Like clockwork the thing was supposedly up to operating temp within 3 miles.



TIA

Flaps or no flaps, I'd be mighty concerned if the oil reached 100 degrees in just 3 miles. Your F06 MUST have a water temperature gauge.

[Mattyk]

I think it's just the big torque meaning the engine isn't working hard, I was normally 15 miles into my commute, 10 miles down the mway before mine warmed up

[F30Andy]

Originally Posted by Scottiedog

Has the f06 got a coolant gauge or oil gauge?

Originally Posted by 4WDriver

Flaps or no flaps, I'd be mighty concerned if the oil reached 100 degrees in just 3 miles. Your F06 MUST have a water temperature gauge.

Nope, definitely a oil temperature gauge.

[HighlandPete]

Originally Posted by F30Andy

...As for the F06 4d. Now for some strange reason this thing is up to operating temp within 2 - 3 miles. (Has flaps)

Today was the first day since xmas eve that I had driven the F06. It was
also -1c outside.
Like clockwork the thing was supposedly up to operating temp within 3 miles...

How's that happening? Faulty oil temperature sensor? Can't imagine any driving conditions where you'd get oil up to the normal range from 0C, in 2 - 3 miles in a large diesel. What are the driving conditions, to get the engine load high enough to get the heat?

My 535i 'petrol' (more waste heat) will take around 12 miles at 0C, to get oil over 100C.

If I drive down the glen, 12 miles (most of the trip at ~60mph), oil will not even get to 95C.