Sprinter-Forum    
 

Go Back   Sprinter-Forum > NCV3 Sprinters > NCV3 4x4 Talk

NCV3 4x4 Talk General Discussions related to NCV3 4x4 Sprinters.


View Poll Results: Typical Engine Coolant Operating Temperature (Select all that apply)
Less than 188 F 2 7.41%
188 to 200 F 20 74.07%
200 to 212 F 8 29.63%
213 to 225F 4 14.81%
Above 225F 3 11.11%
Multiple Choice Poll. Voters: 27. You may not vote on this poll | Withdraw Vote

 
Thread Tools Display Modes
Old 08-02-2019, 05:40 PM   #21
Bobnoxious
 
Join Date: Mar 2015
Location: Noxville, Noxious
Posts: 14,777
Thanks: 8,259
Thanked 5,161 Times in 3,699 Posts
Default Re: Engine Coolant Operating Temperatures

Just a tidbit of info. Upon cold start-up, coolant doesn't circulate for 3-minutes.
Bobnoxious is offline   Reply With Quote
Old 08-02-2019, 05:44 PM   #22
Bobnoxious
 
Join Date: Mar 2015
Location: Noxville, Noxious
Posts: 14,777
Thanks: 8,259
Thanked 5,161 Times in 3,699 Posts
Default Re: Engine Coolant Operating Temperatures

Quote:
Originally Posted by MTD View Post
I have the same van. 2016 170 4x4, have had it for about three years now (from new). I used to worry about these things, but then my upfitter just told me to stop thinking about it and just drive the van which has turned out to be good advice. I'm in the bay area and drive in the sierras a lot. Have a scangauge which makes it all the easier to over analyze stuff etc. Temperature behavior is pretty much identical to your report. It does seem to get surprisingly hot (coolant) when simply driving around town...or said alternatively, idling the engine doesn't seem to get the coolant cool as fast as i would think it should. The only thing that'll get the coolant below 190 is a downhill section, or driving <30deg F moving slowly. And what i have found is that there seems to be an upper limit of 225F which so far the van has never passed. Recently for example I went up both whitney portal road and monitor pass which you will know are 2000-4000' of steep climbing, and the thing just pegged itself at 225. I think the fan clutch engages variably to handle it all. So, while I watch it, I don't get alarmed by it, and I don't think it's a problem.
Some operator monitoring is helpful to avoid interrupting DPF generations, and avoid DEF low level warning activation known to cause the dreaded start countdown.
Bobnoxious is offline   Reply With Quote
Old 08-03-2019, 03:02 PM   #23
kcshoots
 
Join Date: Jul 2013
Location: Reno, NV
Posts: 286
Thanks: 270
Thanked 132 Times in 90 Posts
Default Re: Engine Coolant Operating Temperatures

Quote:
Originally Posted by MTD View Post
I have the same van. 2016 170 4x4, have had it for about three years now (from new). I used to worry about these things, but then my upfitter just told me to stop thinking about it and just drive the van which has turned out to be good advice. I'm in the bay area and drive in the sierras a lot. Have a scangauge which makes it all the easier to over analyze stuff etc. Temperature behavior is pretty much identical to your report. It does seem to get surprisingly hot (coolant) when simply driving around town...or said alternatively, idling the engine doesn't seem to get the coolant cool as fast as i would think it should. The only thing that'll get the coolant below 190 is a downhill section, or driving <30deg F moving slowly. And what i have found is that there seems to be an upper limit of 225F which so far the van has never passed. Recently for example I went up both whitney portal road and monitor pass which you will know are 2000-4000' of steep climbing, and the thing just pegged itself at 225. I think the fan clutch engages variably to handle it all. So, while I watch it, I don't get alarmed by it, and I don't think it's a problem.
Thanks for sharing. Your experience is exactly identical to mine, so that is comforting that these seemingly higher operating temps may just be the normal for this van, especially if a heavy build or load. I'll take your upfitter's advice and share it with mine--me--and try to stop worrying about it and enjoy the beautiful scenery and experiences the van can bring.
kcshoots is offline   Reply With Quote
Old 08-10-2019, 02:45 PM   #24
Wrinkledpants
 
Join Date: Aug 2016
Location: Denver, CO
Posts: 1,215
Thanks: 52
Thanked 663 Times in 371 Posts
Default Re: Engine Coolant Operating Temperatures

Quote:
Originally Posted by kcshoots View Post
Hello, I have a 2016 Sprinter 170 4x4, fully built out and near GVWR. Stock tires and bumpers but roof rack and side ladder. Nothing in front of the radiator grille and no engine changes. I have an UltraGauge and I keep on the screen the engine coolant temperature, and I've noticed that at times my coolant reaches temperatures higher than I would expect for a modern vehicle. I'll report my experiences and curious to hear about others and their coolant operating temps.

My van typically operates between 185-195F, particularly on level road at highway speeds, and can be slightly higher when climbing gradual hills at highway speeds or around town. Temperature does climb to 210-225F during hot weather (85-95F ambient) and on steeper hill climbs. I live in Reno-Tahoe area, so ambient temps usually range from 20-90F and almost constant 20% humidity, so moderate temps. Running the AC doesn't seem to add much to operating temps but interestingly going slowly (20-40 mph), temperature rises, and it can even while idling in park unit it reaches a 212-220F range. I've seen temps of 220-225 when on city streets at ~30mph. no AC on and outside temps of 80-90F, which seems very hot to me and the van seems to take quite some time to cool back down or requires a coasting descent to cool back to less than 210F and a couple of minutes to get below 200F.

I have taken the van to the dealer three times now on my concern that these operating temps are high, and they have checked the fan operation, replaced the coolant and radiator, but still no change in operating temp. The dealer's tech checked into the normal operating temp spec and reports that it is 80c-110c (176-230F), so my van operates within this range, but it still seems hot and certainly higher than other modern vehicles I have owned, and when operating at higher temps looses some water that steams out of the reservoir, so I still question these higher operating temps.

I am curious to hear what you see as actual engine coolant operating temperatures in your vans. Thanks,
Same here in Denver. 7500 lbs, big tires, etc. The temp gauge reads live temp readings, where most cars will smooth the temp gauge at operating temp so the needle isn't moving around and making the owner nervous. Any vehicle will have a wide range of actual coolant temps through various phases of driving, to include hotter than what the needle shows. It's not until you get *really* hot do most cars' needles move off center into the hot range. My old Audi S4 had a weird HVAC head unit where you can push several buttons at once and get live sensor data. The needle would never move off center, but actual temp readings were 190 to 220 while the needle stayed rock center.

Your temps sound perfectly normal. We have 25k miles on our 2017 and it's operated like this from new. Hot temps are good for this motor - keeps the carbon down :)
__________________
2017 144WB 4x4
Wrinkledpants is offline   Reply With Quote
The Following User Says Thank You to Wrinkledpants For This Useful Post:
kcshoots (08-12-2019)
Old 08-10-2019, 03:39 PM   #25
4wheeldog
 
Join Date: Mar 2015
Posts: 863
Thanks: 501
Thanked 505 Times in 337 Posts
Default Re: Engine Coolant Operating Temperatures

Quote:
Originally Posted by Wrinkledpants View Post
Same here in Denver. 7500 lbs, big tires, etc. The temp gauge reads live temp readings, where most cars will smooth the temp gauge at operating temp so the needle isn't moving around and making the owner nervous. Any vehicle will have a wide range of actual coolant temps through various phases of driving, to include hotter than what the needle shows. It's not until you get *really* hot do most cars' needles move off center into the hot range. My old Audi S4 had a weird HVAC head unit where you can push several buttons at once and get live sensor data. The needle would never move off center, but actual temp readings were 190 to 220 while the needle stayed rock center.

Your temps sound perfectly normal. We have 25k miles on our 2017 and it's operated like this from new. Hot temps are good for this motor - keeps the carbon down :)
My experience with my 2018 is similar. It is a tall 144 with solar and AC on the roof (Winnebago Revel), 8500-8600 lb traveling weight. I commonly see 220-225 at over 100F OAT. Generally, it is the very shallow climbs that get my attention. Driving from Moab toward HW 70, 103F, I was surprised to see it over 220, because It really doesn't seem like a climb. But going back the other way a week later in identical conditions other than the direction of travel, it never went over 210F.
4wheeldog is offline   Reply With Quote
The Following User Says Thank You to 4wheeldog For This Useful Post:
kcshoots (08-12-2019)
Old 08-22-2019, 03:09 AM   #26
Sprinter SS
 
Sprinter SS's Avatar
 
Join Date: Jun 2010
Location: Texas
Posts: 870
Thanks: 62
Thanked 313 Times in 221 Posts
Default Re: Engine Coolant Operating Temperatures

Quote:
Originally Posted by Bobnoxious View Post
Mine runs about 175 or slightly above.
Om 651s definitely run cooler than a om642
Sprinter SS is offline   Reply With Quote
The Following User Says Thank You to Sprinter SS For This Useful Post:
sailquik (08-30-2019)

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT. The time now is 07:22 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.