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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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XC70 D5 poor MPGViews : 6024 Replies : 52Users Viewing This Thread : |
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Feb 7th, 2020, 12:56 | #11 |
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As these cars age the message is that serious owners need to own their own VIDA/DiCE to quickly identify the causes of performance deterioration. Even if you had to buy a second hand laptop to run the program, the outlay is not likely to be much more that £100 for everything including a car charger so you do not have to worry about the battery state of the laptop.
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2012 XC70 SE Lux Polestar 230 bhp D5 Auto Oyster Grey |
Feb 7th, 2020, 22:32 | #12 |
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The car has been on VIDA and there are no codes to suggest anything is wrong, the only historic one when an intercooler pipe was split. I will have to do some running and check temps etc. But ai don't know what temp is the normal running temp? I would assume about 90 like most cars??
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Feb 8th, 2020, 12:55 | #13 |
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Don't think my engine has the swirl flaps?? Going to run it today with diagnostics connected and see what temp it's sitting at. Anyone know what it should be?? Thanks.
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Feb 8th, 2020, 14:07 | #14 | |
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Quote:
I didn't do a long run as such, but the temp rose to nigh on 90 then dropped slightly and rose again before dropping again and continued this throughout. Stop starts, pick up the paper,Tesco and a visit to my sister some 8 miles away. Hopes this helps. What you need to know is how long does it take to reach that operating temp. I'm off work this week and come Tuesday will be going away for a couple of days......I'll post at what mileage I reach the operating temp and the time it took, speed, etc. as it all factors in....so does the outside temp.......
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2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP. |
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Feb 8th, 2020, 17:19 | #15 |
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Euro 4 engines onwards have them as far as I know, so yours should too.
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2007 (P3) Volvo S80 SE 2.4D (163bhp) - 109,000 miles. Black exterior with cream leather interior. |
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Feb 8th, 2020, 20:11 | #16 |
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V70Zig Thanks for the info. If you could let me know how long it takes to reach operating temp that would be really helpful.
I ran it today but only for a few miles and it was nowhere near 90. I'll check it on a longer run. Thanks. Kev0607 I'm not sure my engine has? On the older engine I am aware of where the flap lever is, however nothing on mine. The engine is a D5244t10 |
Feb 9th, 2020, 09:06 | #17 |
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Feb 9th, 2020, 10:49 | #18 | |
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Outside temp 11, coolant temp 11 before startup. First 2.5 miles to get out of town 30 mph max. Then onto dual carriageway 60 mph. Having covered 5.5 miles in 9 minutes the coolant reached 91 before dropping back to 87 - 88 - 89, 88 - 89 consistently for a further 6 miles. My average consumption at opening was 27.9 according to the dash. Finally it's pretty flat round here. Nothing in Vida re a swirl flap motor for yours.....there is for mine. So Olaf is probably right.
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2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP. |
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Feb 10th, 2020, 14:03 | #19 |
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And today - same destination, but missed out the dual carriageway and went through the villages so a lot of speed bumps and 30 mph speed limit.
Outside temp 3, coolant temp 5. So it took 6.6 miles and 17 minutes to reach temp, then acted as yesterday. Just shows you that outside temp and speed come into play. Hope this helps.
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2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP. |
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Feb 11th, 2020, 12:10 | #20 |
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Ok, so did a short run today. Outside temp 6 car was 22 as had been run previously. Did about a 15 min run, short bit of town and then dual carriageway for about 8 miles and couple of miles of town again. Highest reading I got was 67, so comparing that, it would seem that the thermostat seems to be stuck open, so I guess that will be the next job to replace that!!
Thanks for all the help. |
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