2015 S80 D5 Auto throttle power loss on hills

Iain Campbell · Nov 14th, 2021, 11:06

My 2015 S80 Auto has developed a strange feeling in the throttle...When driving along the road at say 55mph when i his the same gradiaunt every day i feel like power loss and to maintain the 55mpg i have to press the throttle down until i feel power again..... Car has loads of power tho.... This is more apparent if pulling my trailer........ If i slip tht car across into S mode at that point, no loss of power in this mode... Also if i was in cruise control on the same area of the road, will maintain the speed of 55mph Anyone help on the issue..

Toprivetguns · Nov 14th, 2021, 20:45

A longshot and by no means the cause, but when did you last have the gearbox oil changed? Do you tow frequently? The oil degraded in my gearbox and caused similar issues.

Iain Campbell · Nov 18th, 2021, 10:01

thanks,,, will take a look at this

Easington · Nov 19th, 2021, 08:05

A dirty fuel filter can also cause power delivery issues. The sport mode thing could be a red herring

Iandw65 · Nov 27th, 2021, 13:51

Hi, does the loss of power always happen at a specific speed?? I had a fault with my EGR valve sticking causing intermittent power loss, as the the soot from the diesel was causing the valve to stick and screw up the performance. I assume it’s a diesel you have as you have the D5 model..

Nov 14th, 2021, 11:06	#1
Iain Campbell coonball Last Online: Feb 1st, 2022 15:32 Join Date: Nov 2021 Location: Killin	2015 S80 D5 Auto throttle power loss on hills My 2015 S80 Auto has developed a strange feeling in the throttle...When driving along the road at say 55mph when i his the same gradiaunt every day i feel like power loss and to maintain the 55mpg i have to press the throttle down until i feel power again..... Car has loads of power tho.... This is more apparent if pulling my trailer........ If i slip tht car across into S mode at that point, no loss of power in this mode... Also if i was in cruise control on the same area of the road, will maintain the speed of 55mph Anyone help on the issue..

Nov 14th, 2021, 20:45	#2
Toprivetguns Member Last Online: Mar 20th, 2024 12:05 Join Date: Aug 2017 Location: Herts	A longshot and by no means the cause, but when did you last have the gearbox oil changed? Do you tow frequently? The oil degraded in my gearbox and caused similar issues. __________________ V60 D5 SE Lux Nav

Nov 19th, 2021, 08:05	#4
Easington Master Member Last Online: Jul 28th, 2023 12:45 Join Date: Oct 2018 Location: Lincolnshire	A dirty fuel filter can also cause power delivery issues. The sport mode thing could be a red herring __________________ V60 Cross Country D4 (2.4 5 cylinder) AWD Lux Nav Geartronic 2016 - Electric Silver, Polestar Optimisation and Police Spec Dipstick

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Nov 18th, 2021, 10:01	#3
Iain Campbell coonball Last Online: Feb 1st, 2022 15:32 Join Date: Nov 2021 Location: Killin	thanks,,, will take a look at this

Nov 27th, 2021, 13:51	#5
Iandw65 New Member Last Online: Oct 29th, 2023 18:34 Join Date: Oct 2020 Location: Northampton	Hi, does the loss of power always happen at a specific speed?? I had a fault with my EGR valve sticking causing intermittent power loss, as the the soot from the diesel was causing the valve to stick and screw up the performance. I assume it’s a diesel you have as you have the D5 model..

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)